Merge branch '5.0.x'

Fix TLS configuration for WebClient Eureka transport.  Fixes #3793

.circleci/config.yml

@@ -1,41 +0,0 @@
-version: 2
-jobs:
-  build:
-    docker:
-      - image: springcloud/pipeline-base
-        user: appuser
-    environment:
-      _JAVA_OPTIONS: "-Xms1024m -Xmx2048m"
-      TERM: dumb
-    branches:
-      ignore:
-        - gh-pages # list of branches to ignore
-    steps:
-      - checkout
-      - restore_cache:
-          key: sc-netflix-{{ .Branch }}
-      - run:
-          name: "Download dependencies"
-          command: |
-            cd spring-cloud-netflix-hystrix-contract && ../mvnw clean install && \
-            ./mvnw -s .settings.xml -U --fail-never dependency:go-offline || true
-      - save_cache:
-          key: sc-netflix-{{ .Branch }}
-          paths:
-            - ~/.m2
-      - run:
-          name: "Running build"
-          command: ./mvnw -s .settings.xml clean org.jacoco:jacoco-maven-plugin:prepare-agent install -U -P sonar -nsu --batch-mode -Dmaven.test.redirectTestOutputToFile=true -Dorg.slf4j.simpleLogger.log.org.apache.maven.cli.transfer.Slf4jMavenTransferListener=warn
-      - run:
-          name: "Aggregate test results"
-          when: always
-          command: |
-            mkdir -p ~/junit/
-            find . -type f -regex ".*/target/.*-reports/.*" -exec cp {} ~/junit/ \;
-            bash <(curl -s https://codecov.io/bash)
-      - store_artifacts:
-          path: ~/junit/
-          destination: artifacts
-      - store_test_results:
-          path: ~/junit/
-          destination: testartifacts

.github/CONTRIBUTING.md

@@ -17,7 +17,7 @@ given the ability to merge pull requests.
 
 ## Code of Conduct
 This project adheres to the Contributor Covenant [code of
-conduct](https://github.com/spring-cloud/spring-cloud-build/blob/main/docs/src/main/asciidoc/code-of-conduct.adoc). By participating, you  are expected to uphold this code. Please report
+conduct](https://github.com/spring-cloud/spring-cloud-build/blob/main/docs/modules/ROOT/partials/code-of-conduct.adoc). By participating, you  are expected to uphold this code. Please report
 unacceptable behavior to spring-code-of-conduct@pivotal.io.
 
 ## Code Conventions and Housekeeping

.github/actions/release-train-build/action.yml

@@ -0,0 +1,13 @@
+name: Build Release
+runs:
+  using: composite
+  steps:
+    - name: Build Release
+      shell: bash
+      # If we are on Java 8 we need to build the docs zip for jubilee projects so it is distributed as part of the release
+      run: |
+        if java -version 2>&1 | grep -q '1\.8\.'; then
+          ./mvnw --batch-mode --settings release-train-settings.xml clean deploy --activate-profiles releaseTrain,docs -DaltDeploymentRepository="release-train::default::file://$(pwd)/deployment-repository" -Dmaven-deploy-plugin.deployZipUrl="file://$(pwd)/deployment-repository" -Dmaven-deploy-plugin-default.phase=deploy -Dupload-docs-zip.packaging=zip -DskipTests
+        else
+          ./mvnw --batch-mode --settings release-train-settings.xml clean deploy --activate-profiles releaseTrain -DaltDeploymentRepository="release-train::default::file://$(pwd)/deployment-repository" -DskipTests
+        fi

.github/actions/release-train-build/deployment-spec.yml

@@ -0,0 +1,10 @@
+artifactory:
+  artifacts:
+    - pattern: "/**/spring-cloud-*-docs-*.zip"
+      properties:
+        zip.deployed: "false"
+        zip.type: "docs"
+    - pattern: "/**/spring-cloud-docs-*.zip"
+      properties:
+        zip.deployed: "false"
+        zip.type: "docs"

.github/actions/release-train-test/action.yml

@@ -0,0 +1,7 @@
+name: Test Release
+runs:
+  using: composite
+  steps:
+    - name: Test Release
+      shell: bash
+      run: ./mvnw --batch-mode --settings release-train-settings.xml clean verify --activate-profiles releaseTrain

.github/dco.yml

@@ -0,0 +1,2 @@
+require:
+  members: false

.github/dependabot.yml

@@ -0,0 +1,59 @@
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    target-branch: "main"
+    schedule:
+      interval: "weekly"
+    exclude-paths:
+      - ".github/workflows/release-train-test.yml"
+      - ".github/workflows/release-train-build.yml"
+  - package-ecosystem: maven
+    directory: /
+    schedule:
+      interval: daily
+    target-branch: main
+    ignore:
+      # glob 7.2.3+ conflicts with jshint (minimatch) in wro4j-maven-plugin
+      - dependency-name: "org.webjars.npm:glob"
+      # only upgrade patch versions for maintenance branch
+      - dependency-name: "*"
+        update-types:
+          - version-update:semver-major
+          - version-update:semver-minor
+  - package-ecosystem: npm
+    target-branch: docs-build
+    directory: /
+    schedule:
+      interval: weekly
+  - package-ecosystem: npm
+    target-branch: main
+    directory: /docs
+    schedule:
+      interval: weekly
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    target-branch: "5.0.x"
+    schedule:
+      interval: "weekly"
+    exclude-paths:
+      - ".github/workflows/release-train-test.yml"
+      - ".github/workflows/release-train-build.yml"
+  - package-ecosystem: maven
+    directory: /
+    schedule:
+      interval: daily
+    target-branch: 5.0.x
+    ignore:
+      # glob 7.2.3+ conflicts with jshint (minimatch) in wro4j-maven-plugin
+      - dependency-name: "org.webjars.npm:glob"
+      # only upgrade patch versions for maintenance branch
+      - dependency-name: "*"
+        update-types:
+          - version-update:semver-major
+          - version-update:semver-minor
+  - package-ecosystem: npm
+    target-branch: 5.0.x
+    directory: /docs
+    schedule:
+      interval: weekly

.github/workflow-generator.yml

@@ -0,0 +1,17 @@
+workflow:
+  generator:
+    project:
+      java:
+        versions:
+          primary: 17
+    workflows:
+      release-train:
+        build:
+          env:
+            COMMERCIAL_REPO_USERNAME: secrets.COMMERCIAL_ARTIFACTORY_USERNAME
+            COMMERCIAL_REPO_PASSWORD: secrets.COMMERCIAL_ARTIFACTORY_PASSWORD
+            GH_ACTIONS_REPO_TOKEN: secrets.GH_ACTIONS_REPO_TOKEN
+        test:
+          env:
+            COMMERCIAL_REPO_USERNAME: secrets.COMMERCIAL_ARTIFACTORY_USERNAME
+            COMMERCIAL_REPO_PASSWORD: secrets.COMMERCIAL_ARTIFACTORY_PASSWORD

.github/workflows/ci.yaml

@@ -0,0 +1,33 @@
+name: Spring Cloud Netflix CI Job
+
+on:
+  push:
+    branches:
+      - main
+      - 4.3.x
+
+  # Scheduled builds run daily at midnight UTC
+  schedule:
+    - cron: '0 0 * * *'
+
+  # Manual trigger with optional branch override
+  workflow_dispatch:
+    inputs:
+      branches:
+        description: "Which branch should be built (can be a comma-separated list of branches)"
+        required: true
+        default: 'main'
+        type: string
+
+jobs:
+  deploy:
+    uses: spring-cloud/spring-cloud-github-actions/.github/workflows/deploy.yml@b6a6b1963b8762420526591c3d363bd7d09e7d4b # v1.1.1
+    with:
+      branches: ${{ inputs.branches }}
+    secrets:
+      ARTIFACTORY_USERNAME: ${{ secrets.ARTIFACTORY_USERNAME }}
+      ARTIFACTORY_PASSWORD: ${{ secrets.ARTIFACTORY_PASSWORD }}
+      COMMERCIAL_ARTIFACTORY_USERNAME: ${{ secrets.COMMERCIAL_ARTIFACTORY_USERNAME }}
+      COMMERCIAL_ARTIFACTORY_PASSWORD: ${{ secrets.COMMERCIAL_ARTIFACTORY_PASSWORD }}
+      DOCKERHUB_USERNAME: ${{ secrets.DOCKERHUB_USERNAME }}
+      DOCKERHUB_TOKEN: ${{ secrets.DOCKERHUB_TOKEN }}

.github/workflows/deploy-docs.yml

@@ -0,0 +1,48 @@
+# Generated by the rollout-deploy-docs-trigger workflow in
+# spring-cloud/spring-cloud-github-actions.
+#
+# Do not edit this file directly - update examples/deploy-docs-trigger.yml
+# there and re-run the rollout, otherwise your change will be overwritten.
+
+name: Deploy Docs
+
+on:
+  push:
+    # Allow-list of exactly this branch. A topic or Dependabot branch cut from
+    # it carries this file too, and without this filter every push to one of
+    # those would dispatch a full docs build for a ref that is not in the
+    # Antora playbook.
+    branches:
+      - main
+    tags: '**'
+  repository_dispatch:
+    types: request-build-reference # legacy
+  workflow_dispatch:
+
+permissions:
+  contents: read   # required to check out private commercial repositories
+  actions: write   # required to dispatch the docs build
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          ref: docs-build
+          fetch-depth: 1
+
+      # A branch push rebuilds just that branch's docs; a tag push rebuilds
+      # everything so the new version appears in the version dropdown.
+      - name: Dispatch (partial build)
+        if: github.ref_type == 'branch'
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: gh workflow run deploy-docs.yml -r $(git rev-parse --abbrev-ref HEAD) -f build-refname=${{ github.ref_name }}
+
+      - name: Dispatch (full build)
+        if: github.ref_type == 'tag'
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: gh workflow run deploy-docs.yml -r $(git rev-parse --abbrev-ref HEAD)

.github/workflows/pr.yml

@@ -0,0 +1,9 @@
+name: PR
+
+on:
+  pull_request:
+    branches: [ main, 4.3.x ]
+
+jobs:
+  build:
+    uses: spring-cloud/spring-cloud-github-actions/.github/workflows/pr.yml@b6a6b1963b8762420526591c3d363bd7d09e7d4b # v1.1.1

.github/workflows/release-train-build.yml

@@ -0,0 +1,91 @@
+# This file was auto-generated by github-actions-workflow-generator 0.0.6. Do not edit.
+# To update it, modify .github/workflow-generator.yml as needed and re-run the generator.
+
+name: "Release Train – Build"
+run-name: "${{ inputs.callback-ref }} – Build"
+"on":
+  workflow_dispatch:
+    inputs:
+      callback:
+        description: "Repository to which a callback should be made upon completion"
+        required: true
+        type: "string"
+      callback-ref:
+        description: "Ref in the callback repository to which a callback should be made upon completion"
+        required: true
+        type: "string"
+      release-train-maven-repository-url:
+        description: "URL of a Maven repository to be used to resolve artifacts of projects earlier in the train"
+        required: true
+        type: "string"
+permissions:
+  contents: "read"
+concurrency:
+  group: "${{ github.workflow }}-${{ github.ref }}"
+jobs:
+  build-release:
+    name: "Build Release"
+    runs-on: "ubuntu22-2-8"
+    steps:
+    - name: "Prevent Re-runs"
+      id: "prevent-re-runs"
+      run: |-
+        if [ "$GITHUB_RUN_ATTEMPT" -gt 1 ]; then
+          echo "Re-runs are prohibited. Use the 'Release Train – Retry' workflow to retry build failures"
+          exit 1
+        fi
+    - name: "Set up Java"
+      id: "set-up-java"
+      uses: "actions/setup-java@03ad4de0992f5dab5e18fcb136590ce7c4a0ac95" # v5.6.0
+      with:
+        distribution: "liberica"
+        java-version: "17"
+    - name: "Check Out Code"
+      id: "check-out-code"
+      uses: "actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0" # v7.0.0
+    - name: "Build Release"
+      id: "build-release"
+      uses: "./.github/actions/release-train-build"
+      env:
+        COMMERCIAL_REPO_PASSWORD: "${{ secrets.COMMERCIAL_ARTIFACTORY_PASSWORD }}"
+        COMMERCIAL_REPO_USERNAME: "${{ secrets.COMMERCIAL_ARTIFACTORY_USERNAME }}"
+        GH_ACTIONS_REPO_TOKEN: "${{ secrets.GH_ACTIONS_REPO_TOKEN }}"
+        RELEASE_TRAIN_MAVEN_REPOSITORY_PASSWORD: "${{ secrets.RELEASE_TRAIN_PARTICIPANT_MAVEN_REPOSITORY_PASSWORD }}"
+        RELEASE_TRAIN_MAVEN_REPOSITORY_URL: "${{ inputs.release-train-maven-repository-url }}"
+        RELEASE_TRAIN_MAVEN_REPOSITORY_USERNAME: "${{ secrets.RELEASE_TRAIN_PARTICIPANT_MAVEN_REPOSITORY_USERNAME }}"
+    - name: "Upload Deployment Repository"
+      id: "upload-deployment-repository"
+      uses: "actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a" # v7.0.1
+      with:
+        name: "deployment-repository"
+        path: "deployment-repository/**"
+    - name: "Upload Deployment Spec"
+      id: "upload-deployment-spec"
+      uses: "actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a" # v7.0.1
+      with:
+        archive: "false"
+        if-no-files-found: "ignore"
+        name: "deployment-spec"
+        path: ".github/actions/release-train-build/deployment-spec.yml"
+    - name: "Save Build System Caches"
+      id: "save-build-system-caches"
+      uses: "actions/cache/save@55cc8345863c7cc4c66a329aec7e433d2d1c52a9" # v6.1.0
+      with:
+        key: "release-train-${{ inputs.callback-ref }}-${{ github.ref_name }}"
+        path: "~/.m2/repository"
+    - name: "Send Callback"
+      id: "send-callback"
+      if: "${{ !cancelled() }}"
+      env:
+        GH_TOKEN: "${{ secrets.RELEASE_TRAIN_PARTICIPANT_GITHUB_TOKEN }}"
+      run: |-
+        gh workflow run callback \
+        --repo ${{ inputs.callback }} \
+        --ref ${{ inputs.callback-ref }} \
+        --field commit-hash=${{ steps.check-out-code.outputs.commit }} \
+        --field deployment-repository-artifact-identifier=${{ steps.upload-deployment-repository.outputs.artifact-id }} \
+        --field deployment-spec-artifact-identifier=${{ steps.upload-deployment-spec.outputs.artifact-id }} \
+        --field release-branch=${{ github.ref_name }} \
+        --field release-repository=${{ github.repository }} \
+        --field result=${{ job.status == 'success' && 'built' || 'build-failed' }} \
+        --field workflow-run-url=${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}

.github/workflows/release-train-join.yml

@@ -0,0 +1,55 @@
+# This file was auto-generated by github-actions-workflow-generator 0.0.6. Do not edit.
+# To update it, modify .github/workflow-generator.yml as needed and re-run the generator.
+
+name: "Release Train – Join"
+run-name: "${{ inputs.release-train }} – Join"
+"on":
+  workflow_dispatch:
+    inputs:
+      deployment-destination:
+        description: "Destination to which the release should be deployed"
+        options:
+        - "Maven Central"
+        - "Spring Enterprise"
+        required: true
+        type: "choice"
+      release-train:
+        description: "Release train"
+        required: true
+        type: "string"
+      release-train-repository:
+        default: "spring-io/release-train"
+        description: "Release train repository"
+        required: true
+        type: "string"
+permissions:
+  contents: "none"
+jobs:
+  join-release-train:
+    name: "Join Release Train"
+    runs-on: "ubuntu-latest"
+    steps:
+    - name: "Join Release Train"
+      id: "join-release-train"
+      env:
+        GH_TOKEN: "${{ secrets.RELEASE_TRAIN_PARTICIPANT_GITHUB_TOKEN }}"
+      run: |-
+        run_url=$(
+          gh workflow run join \
+          --repo ${{ inputs.release-train-repository }} \
+          --ref ${{ inputs.release-train }} \
+          --field commit-hash=${{ github.sha }} \
+          --field deployment-destination=${{ inputs.deployment-destination == 'Maven Central' && 'maven-central' || 'spring-enterprise' }} \
+          --field release-branch=${{ github.ref_name }} \
+          --field release-repository=${{ github.repository }}
+        )
+        echo "Dispatched workflow run. Waiting for $run_url to complete."
+        run_id=${run_url##*/}
+        watch_exit_code=0
+        gh run watch $run_id --repo ${{ inputs.release-train-repository }} --exit-status --interval=3 > /dev/null 2>&1 || watch_exit_code=$?
+        if [[ $watch_exit_code -eq 0 ]]; then
+          echo "Workflow run succeeded."
+        else
+          echo "Workflow run failed."
+        fi
+        exit $watch_exit_code

.github/workflows/release-train-leave.yml

@@ -0,0 +1,46 @@
+# This file was auto-generated by github-actions-workflow-generator 0.0.6. Do not edit.
+# To update it, modify .github/workflow-generator.yml as needed and re-run the generator.
+
+name: "Release Train – Leave"
+run-name: "${{ inputs.release-train }} – Leave"
+"on":
+  workflow_dispatch:
+    inputs:
+      release-train:
+        description: "Release train"
+        required: true
+        type: "string"
+      release-train-repository:
+        default: "spring-io/release-train"
+        description: "Release train repository"
+        required: true
+        type: "string"
+permissions:
+  contents: "none"
+jobs:
+  leave:
+    name: "Leave"
+    runs-on: "ubuntu-latest"
+    steps:
+    - name: "Leave"
+      id: "leave"
+      env:
+        GH_TOKEN: "${{ secrets.RELEASE_TRAIN_PARTICIPANT_GITHUB_TOKEN }}"
+      run: |-
+        run_url=$(
+          gh workflow run leave \
+          --repo ${{ inputs.release-train-repository }} \
+          --ref ${{ inputs.release-train }} \
+          --field release-branch=${{ github.ref_name }} \
+          --field release-repository=${{ github.repository }}
+        )
+        echo "Dispatched workflow run. Waiting for $run_url to complete."
+        run_id=${run_url##*/}
+        watch_exit_code=0
+        gh run watch $run_id --repo ${{ inputs.release-train-repository }} --exit-status --interval=3 > /dev/null 2>&1 || watch_exit_code=$?
+        if [[ $watch_exit_code -eq 0 ]]; then
+          echo "Workflow run succeeded."
+        else
+          echo "Workflow run failed."
+        fi
+        exit $watch_exit_code

.github/workflows/release-train-ready.yml

@@ -0,0 +1,47 @@
+# This file was auto-generated by github-actions-workflow-generator 0.0.6. Do not edit.
+# To update it, modify .github/workflow-generator.yml as needed and re-run the generator.
+
+name: "Release Train – Ready"
+run-name: "${{ inputs.release-train }} – Ready"
+"on":
+  workflow_dispatch:
+    inputs:
+      release-train:
+        description: "Release train"
+        required: true
+        type: "string"
+      release-train-repository:
+        default: "spring-io/release-train"
+        description: "Release train repository"
+        required: true
+        type: "string"
+permissions:
+  contents: "none"
+jobs:
+  ready:
+    name: "Ready"
+    runs-on: "ubuntu-latest"
+    steps:
+    - name: "Ready"
+      id: "ready"
+      env:
+        GH_TOKEN: "${{ secrets.RELEASE_TRAIN_PARTICIPANT_GITHUB_TOKEN }}"
+      run: |-
+        run_url=$(
+          gh workflow run ready \
+          --repo ${{ inputs.release-train-repository }} \
+          --ref ${{ inputs.release-train }} \
+          --field commit-hash=${{ github.sha }} \
+          --field release-branch=${{ github.ref_name }} \
+          --field release-repository=${{ github.repository }}
+        )
+        echo "Dispatched workflow run. Waiting for $run_url to complete."
+        run_id=${run_url##*/}
+        watch_exit_code=0
+        gh run watch $run_id --repo ${{ inputs.release-train-repository }} --exit-status --interval=3 > /dev/null 2>&1 || watch_exit_code=$?
+        if [[ $watch_exit_code -eq 0 ]]; then
+          echo "Workflow run succeeded."
+        else
+          echo "Workflow run failed."
+        fi
+        exit $watch_exit_code

.github/workflows/release-train-retry.yml

@@ -0,0 +1,34 @@
+# This file was auto-generated by github-actions-workflow-generator 0.0.6. Do not edit.
+# To update it, modify .github/workflow-generator.yml as needed and re-run the generator.
+
+name: "Release Train – Retry"
+run-name: "${{ inputs.release-train }} – Retry"
+"on":
+  workflow_dispatch:
+    inputs:
+      release-train:
+        description: "Release train"
+        required: true
+        type: "string"
+      release-train-repository:
+        default: "spring-io/release-train"
+        description: "Release train repository"
+        required: true
+        type: "string"
+permissions:
+  contents: "none"
+jobs:
+  trigger-retry:
+    name: "Trigger Retry"
+    runs-on: "ubuntu-latest"
+    steps:
+    - name: "Trigger Retry"
+      id: "trigger-retry"
+      env:
+        GH_TOKEN: "${{ secrets.RELEASE_TRAIN_PARTICIPANT_GITHUB_TOKEN }}"
+      run: |-
+        gh workflow run retry \
+        --repo ${{ inputs.release-train-repository }} \
+        --ref ${{ inputs.release-train }} \
+        --field release-branch=${{ github.ref_name }} \
+        --field release-repository=${{ github.repository }}

.github/workflows/release-train-test.yml

@@ -0,0 +1,83 @@
+# This file was auto-generated by github-actions-workflow-generator 0.0.6. Do not edit.
+# To update it, modify .github/workflow-generator.yml as needed and re-run the generator.
+
+name: "Release Train – Test"
+run-name: "${{ inputs.callback-ref }} – Test"
+"on":
+  workflow_dispatch:
+    inputs:
+      callback:
+        description: "Repository to which a callback should be made upon completion"
+        required: true
+        type: "string"
+      callback-ref:
+        description: "Ref in the callback repository to which a callback should be made upon completion"
+        required: true
+        type: "string"
+      release-train-maven-repository-url:
+        description: "URL of a Maven repository to be used to resolve artifacts of projects earlier in the train"
+        required: true
+        type: "string"
+permissions:
+  contents: "read"
+concurrency:
+  group: "${{ github.workflow }}-${{ github.ref }}"
+jobs:
+  test-release:
+    name: "Test Release"
+    runs-on: "ubuntu22-2-8"
+    steps:
+    - name: "Prevent Re-runs"
+      id: "prevent-re-runs"
+      run: |-
+        if [ "$GITHUB_RUN_ATTEMPT" -gt 1 ]; then
+          echo "Re-runs are prohibited. Use the 'Release Train – Retry' workflow to retry test failures"
+          exit 1
+        fi
+    - name: "Set up Java"
+      id: "set-up-java"
+      uses: "actions/setup-java@03ad4de0992f5dab5e18fcb136590ce7c4a0ac95" # v5.6.0
+      with:
+        distribution: "liberica"
+        java-version: "17"
+    - name: "Check Out Code"
+      id: "check-out-code"
+      uses: "actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0" # v7.0.0
+    - name: "Restore Build System Caches"
+      id: "restore-build-system-caches"
+      uses: "actions/cache/restore@55cc8345863c7cc4c66a329aec7e433d2d1c52a9" # v6.1.0
+      with:
+        key: "release-train-${{ inputs.callback-ref }}-${{ github.ref_name }}"
+        path: "~/.m2/repository"
+    - name: "Test Release"
+      id: "test-release"
+      uses: "./.github/actions/release-train-test"
+      env:
+        COMMERCIAL_REPO_PASSWORD: "${{ secrets.COMMERCIAL_ARTIFACTORY_PASSWORD }}"
+        COMMERCIAL_REPO_USERNAME: "${{ secrets.COMMERCIAL_ARTIFACTORY_USERNAME }}"
+        RELEASE_TRAIN_MAVEN_REPOSITORY_PASSWORD: "${{ secrets.RELEASE_TRAIN_PARTICIPANT_MAVEN_REPOSITORY_PASSWORD }}"
+        RELEASE_TRAIN_MAVEN_REPOSITORY_URL: "${{ inputs.release-train-maven-repository-url }}"
+        RELEASE_TRAIN_MAVEN_REPOSITORY_USERNAME: "${{ secrets.RELEASE_TRAIN_PARTICIPANT_MAVEN_REPOSITORY_USERNAME }}"
+    - name: "Send Callback"
+      id: "send-callback"
+      if: "${{ !cancelled() }}"
+      env:
+        GH_TOKEN: "${{ secrets.RELEASE_TRAIN_PARTICIPANT_GITHUB_TOKEN }}"
+      run: |-
+        gh workflow run callback \
+        --repo ${{ inputs.callback }} \
+        --ref ${{ inputs.callback-ref }} \
+        --field commit-hash=${{ steps.check-out-code.outputs.commit }} \
+        --field release-branch=${{ github.ref_name }} \
+        --field release-repository=${{ github.repository }} \
+        --field result=${{ job.status == 'success' && 'tested' || 'test-failed' }} \
+        --field workflow-run-url=${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}
+    - name: "Upload Build System Reports"
+      id: "upload-build-system-reports"
+      if: "${{ failure() }}"
+      uses: "actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a" # v7.0.1
+      with:
+        name: "build-system-reports"
+        path: |-
+          **/target/surefire-reports
+          **/target/failsafe-reports

.gitignore

@@ -1,3 +1,6 @@
+/application.yml
+/application.properties
+asciidoctor.css
 *~
 #*
 *#
@@ -5,6 +8,7 @@
 .classpath
 .project
 .settings/
+.settings
 .springBeans
 target/
 bin/
@@ -18,6 +22,16 @@ _site/
 .shelf
 *.swp
 *.swo
+/spring-cloud-release-tools*.jar
+antrun
 .vscode/
 .flattened-pom.xml
-.sdkmanrc
+node
+node_modules
+build
+_configprops.adoc
+_spans.adoc
+_metrics.adoc
+_conventions.adoc
+/package.json
+package-lock.json

.java-version

@@ -0,0 +1 @@
+17

.mvn/maven.config

@@ -1 +1,2 @@
--DaltSnapshotDeploymentRepository=repo.spring.io::default::https://repo.spring.io/libs-snapshot-local -P spring
+-DaltSnapshotDeploymentRepository=repo.spring.io::default::https://repo.spring.io/libs-snapshot-local
+-P spring

.mvn/wrapper/MavenWrapperDownloader.java

@@ -1,107 +0,0 @@
-/*
-Licensed to the Apache Software Foundation (ASF) under one
-or more contributor license agreements.  See the NOTICE file
-distributed with this work for additional information
-regarding copyright ownership.  The ASF licenses this file
-to you under the Apache License, Version 2.0 (the
-"License"); you may not use this file except in compliance
-with the License.  You may obtain a copy of the License at
-
-  https://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing,
-software distributed under the License is distributed on an
-"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-KIND, either express or implied.  See the License for the
-specific language governing permissions and limitations
-under the License.
-*/
-
-import java.util.Properties;
-
-public class MavenWrapperDownloader {
-
-    /**
-     * Default URL to download the maven-wrapper.jar from, if no 'downloadUrl' is provided.
-     */
-    private static final String DEFAULT_DOWNLOAD_URL =
-            "https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.4.0/maven-wrapper-0.4.0.jar";
-
-    /**
-     * Path to the maven-wrapper.properties file, which might contain a downloadUrl property to
-     * use instead of the default one.
-     */
-    private static final String MAVEN_WRAPPER_PROPERTIES_PATH =
-            ".mvn/wrapper/maven-wrapper.properties";
-
-    /**
-     * Path where the maven-wrapper.jar will be saved to.
-     */
-    private static final String MAVEN_WRAPPER_JAR_PATH =
-            ".mvn/wrapper/maven-wrapper.jar";
-
-    /**
-     * Name of the property which should be used to override the default download url for the wrapper.
-     */
-    private static final String PROPERTY_NAME_WRAPPER_URL = "wrapperUrl";
-
-    public static void main(String args[]) {
-        System.out.println("- Downloader started");
-        File baseDirectory = new File(args[0]);
-        System.out.println("- Using base directory: " + baseDirectory.getAbsolutePath());
-
-        // If the maven-wrapper.properties exists, read it and check if it contains a custom
-        // wrapperUrl parameter.
-        File mavenWrapperPropertyFile = new File(baseDirectory, MAVEN_WRAPPER_PROPERTIES_PATH);
-        String url = DEFAULT_DOWNLOAD_URL;
-        if(mavenWrapperPropertyFile.exists()) {
-            FileInputStream mavenWrapperPropertyFileInputStream = null;
-            try {
-                mavenWrapperPropertyFileInputStream = new FileInputStream(mavenWrapperPropertyFile);
-                Properties mavenWrapperProperties = new Properties();
-                mavenWrapperProperties.load(mavenWrapperPropertyFileInputStream);
-                url = mavenWrapperProperties.getProperty(PROPERTY_NAME_WRAPPER_URL, url);
-            } catch (IOException e) {
-                System.out.println("- ERROR loading '" + MAVEN_WRAPPER_PROPERTIES_PATH + "'");
-            } finally {
-                try {
-                    if(mavenWrapperPropertyFileInputStream != null) {
-                        mavenWrapperPropertyFileInputStream.close();
-                    }
-                } catch (IOException e) {
-                    // Ignore ...
-                }
-            }
-        }
-        System.out.println("- Downloading from: : " + url);
-
-        File outputFile = new File(baseDirectory.getAbsolutePath(), MAVEN_WRAPPER_JAR_PATH);
-        if(!outputFile.getParentFile().exists()) {
-            if(!outputFile.getParentFile().mkdirs()) {
-                System.out.println(
-                        "- ERROR creating output direcrory '" + outputFile.getParentFile().getAbsolutePath() + "'");
-            }
-        }
-        System.out.println("- Downloading to: " + outputFile.getAbsolutePath());
-        try {
-            downloadFileFromURL(url, outputFile);
-            System.out.println("Done");
-            System.exit(0);
-        } catch (Throwable e) {
-            System.out.println("- Error downloading");
-            e.printStackTrace();
-            System.exit(1);
-        }
-    }
-
-    private static void downloadFileFromURL(String urlString, File destination) throws Exception {
-        URL website = new URL(urlString);
-        ReadableByteChannel rbc;
-        rbc = Channels.newChannel(website.openStream());
-        FileOutputStream fos = new FileOutputStream(destination);
-        fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE);
-        fos.close();
-        rbc.close();
-    }
-
-}

.mvn/wrapper/maven-wrapper.properties

@@ -1 +1,4 @@
-distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.5.2/apache-maven-3.5.2-bin.zip
+wrapperVersion=3.3.4
+distributionType=bin
+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.9.16/apache-maven-3.9.16-bin.zip
+wrapperUrl=https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.3.4/maven-wrapper-3.3.4.jar

.sdkmanrc

@@ -0,0 +1,3 @@
+# Enable auto-env through the sdkman_auto_env config
+# Add key=value pairs of SDKs to use below
+java=17.0.1-tem

README.adoc

@@ -5,61 +5,26 @@ Edit the files in the src/main/asciidoc/ directory instead.
 ////
 
 
-:doctype: book
-:idprefix:
-:idseparator: -
-:toc: left
-:toclevels: 4
-:tabsize: 4
-:numbered:
-:sectanchors:
-:sectnums:
-:icons: font
-:hide-uri-scheme:
-:docinfo: shared,private
 
-:sc-ext: java
-:project-full-name: Spring Cloud Netflix
+image::https://github.com/spring-cloud/spring-cloud-netflix/actions/workflows/maven.yml/badge.svg?branch=main&style=svg["Build",link="https://github.com/spring-cloud/spring-cloud-netflix/actions/workflows/maven.yml"]
 
-image::https://circleci.com/gh/spring-cloud/spring-cloud-netflix/tree/main.svg?style=svg["CircleCI", link="https://circleci.com/gh/spring-cloud/spring-cloud-netflix/tree/main"]
-image::https://codecov.io/gh/spring-cloud/spring-cloud-netflix/branch/main/graph/badge.svg["Codecov", link="https://codecov.io/gh/spring-cloud/spring-cloud-netflix/branch/main"]
-image::https://api.codacy.com/project/badge/Grade/a6885a06921e4f72a0df0b7aabd6d118["Codacy code quality", link="https://www.codacy.com/app/Spring-Cloud/spring-cloud-netflix?utm_source=github.com&utm_medium=referral&utm_content=spring-cloud/spring-cloud-netflix&utm_campaign=Badge_Grade"]
-
-
-:doctype: book
-:idprefix:
-:idseparator: -
-:toc: left
-:toclevels: 4
-:tabsize: 4
-:numbered:
-:sectanchors:
-:sectnums:
-:icons: font
-:hide-uri-scheme:
-:docinfo: shared,private
-
-:sc-ext: java
-:project-full-name: Spring Cloud Netflix
-
-This project provides Netflix OSS integrations for Spring Boot apps through autoconfiguration
-and binding to the Spring Environment and other Spring programming model idioms. With a few
-simple annotations you can quickly enable and configure the common patterns inside your
-application and build large distributed systems with battle-tested Netflix components. The
-patterns provided include Service Discovery (Eureka).
+image:https://codecov.io/gh/spring-cloud/spring-cloud-netflix/branch/main/graph/badge.svg["Codecov", link="https://app.codecov.io/gh/spring-cloud/spring-cloud-netflix/tree/main"]
 
 
+[[features]]
 == Features
 
 * Service Discovery: Eureka instances can be registered and clients can discover the instances using Spring-managed beans
 * Service Discovery: an embedded Eureka server can be created with declarative Java configuration
 
 
+[[building]]
 == Building
 
-:jdkversion: 1.8
+:jdkversion: 17
 
-=== Basic Compile and Test
+[[basic-compile-and-test]]
+== Basic Compile and Test
 
 To build the source you will need to install JDK {jdkversion}.
 
@@ -83,48 +48,46 @@ the `.mvn` configuration, so if you find you have to do it to make a
 build succeed, please raise a ticket to get the settings added to
 source control.
 
-For hints on how to build the project look in `.travis.yml` if there
-is one. There should be a "script" and maybe "install" command. Also
-look at the "services" section to see if any services need to be
-running locally (e.g. mongo or rabbit).  Ignore the git-related bits
-that you might find in "before_install" since they're related to setting git
-credentials and you already have those.
+The projects that require middleware (i.e. Redis) for testing generally
+require that a local instance of https://www.docker.com/get-started[Docker] is installed and running.
 
-The projects that require middleware generally include a
-`docker-compose.yml`, so consider using
-https://docs.docker.com/compose/[Docker Compose] to run the middeware servers
-in Docker containers. See the README in the
-https://github.com/spring-cloud-samples/scripts[scripts demo
-repository] for specific instructions about the common cases of mongo,
-rabbit and redis.
-
-NOTE: If all else fails, build with the command from `.travis.yml` (usually
-`./mvnw install`).
-
-=== Documentation
+[[documentation]]
+== Documentation
 
 The spring-cloud-build module has a "docs" profile, and if you switch
-that on it will try to build asciidoc sources from
-`src/main/asciidoc`. As part of that process it will look for a
-`README.adoc` and process it by loading all the includes, but not
+that on it will try to build asciidoc sources using https://docs.antora.org/antora/latest/[Antora] from
+`modules/ROOT/`.
+
+As part of that process it will look for a
+`docs/src/main/asciidoc/README.adoc` and process it by loading all the includes, but not
 parsing or rendering it, just copying it to `${main.basedir}`
-(defaults to `${basedir}`, i.e. the root of the project). If there are
+(defaults to `$\{basedir}`, i.e. the root of the project). If there are
 any changes in the README it will then show up after a Maven build as
 a modified file in the correct place. Just commit it and push the change.
 
-=== Working with the code
+You can generate the docs site using the following command:
+
+[indent=0]
+----
+	./mvnw -pl docs -P docs antora:antora
+----
+
+[[working-with-the-code]]
+== Working with the code
 If you don't have an IDE preference we would recommend that you use
-https://www.springsource.com/developer/sts[Spring Tools Suite] or
+https://spring.io/tools[Spring Tools Suite] or
 https://eclipse.org[Eclipse] when working with the code. We use the
 https://eclipse.org/m2e/[m2eclipse] eclipse plugin for maven support. Other IDEs and tools
 should also work without issue as long as they use Maven 3.3.3 or better.
 
-==== Activate the Spring Maven profile
+[[activate-the-spring-maven-profile]]
+=== Activate the Spring Maven profile
 Spring Cloud projects require the 'spring' Maven profile to be activated to resolve
 the spring milestone and snapshot repositories. Use your preferred IDE to set this
 profile to be active, or you may experience build errors.
 
-==== Importing into eclipse with m2eclipse
+[[importing-into-eclipse-with-m2eclipse]]
+=== Importing into eclipse with m2eclipse
 We recommend the https://eclipse.org/m2e/[m2eclipse] eclipse plugin when working with
 eclipse. If you don't already have m2eclipse installed it is available from the "eclipse
 marketplace".
@@ -138,7 +101,8 @@ add the "spring" profile to your `settings.xml`. Alternatively you can
 copy the repository settings from the "spring" profile of the parent
 pom into your `settings.xml`.
 
-==== Importing into eclipse without m2eclipse
+[[importing-into-eclipse-without-m2eclipse]]
+=== Importing into eclipse without m2eclipse
 If you prefer not to use m2eclipse you can generate eclipse project metadata using the
 following command:
 
@@ -151,192 +115,15 @@ The generated eclipse projects can be imported by selecting `import existing pro
 from the `file` menu.
 
 
-
 NOTE:  To build the module `spring-cloud-netflix-hystrix-contract` along with the entire Netflix project run the
 `build.sh` script in the `scripts` directory.
 
+[[contributing]]
 == Contributing
 
-:spring-cloud-build-branch: master
-
-Spring Cloud is released under the non-restrictive Apache 2.0 license,
-and follows a very standard Github development process, using Github
-tracker for issues and merging pull requests into master. If you want
-to contribute even something trivial please do not hesitate, but
-follow the guidelines below.
-
-=== Sign the Contributor License Agreement
-Before we accept a non-trivial patch or pull request we will need you to sign the
-https://cla.pivotal.io/sign/spring[Contributor License Agreement].
-Signing the contributor's agreement does not grant anyone commit rights to the main
-repository, but it does mean that we can accept your contributions, and you will get an
-author credit if we do.  Active contributors might be asked to join the core team, and
-given the ability to merge pull requests.
-
-=== Code of Conduct
-This project adheres to the Contributor Covenant https://github.com/spring-cloud/spring-cloud-build/blob/master/docs/src/main/asciidoc/code-of-conduct.adoc[code of
-conduct]. By participating, you  are expected to uphold this code. Please report
-unacceptable behavior to spring-code-of-conduct@pivotal.io.
-
-=== Code Conventions and Housekeeping
-None of these is essential for a pull request, but they will all help.  They can also be
-added after the original pull request but before a merge.
-
-* Use the Spring Framework code format conventions. If you use Eclipse
-  you can import formatter settings using the
-  `eclipse-code-formatter.xml` file from the
-  https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/master/spring-cloud-dependencies-parent/eclipse-code-formatter.xml[Spring
-  Cloud Build] project. If using IntelliJ, you can use the
-  https://plugins.jetbrains.com/plugin/6546[Eclipse Code Formatter
-  Plugin] to import the same file.
-* Make sure all new `.java` files to have a simple Javadoc class comment with at least an
-  `@author` tag identifying you, and preferably at least a paragraph on what the class is
-  for.
-* Add the ASF license header comment to all new `.java` files (copy from existing files
-  in the project)
-* Add yourself as an `@author` to the .java files that you modify substantially (more
-  than cosmetic changes).
-* Add some Javadocs and, if you change the namespace, some XSD doc elements.
-* A few unit tests would help a lot as well -- someone has to do it.
-* If no-one else is using your branch, please rebase it against the current master (or
-  other target branch in the main project).
-* When writing a commit message please follow https://tbaggery.com/2008/04/19/a-note-about-git-commit-messages.html[these conventions],
-  if you are fixing an existing issue please add `Fixes gh-XXXX` at the end of the commit
-  message (where XXXX is the issue number).
-
-=== Checkstyle
-
-Spring Cloud Build comes with a set of checkstyle rules. You can find them in the `spring-cloud-build-tools` module. The most notable files under the module are:
-
-.spring-cloud-build-tools/
-----
-└── src
-    ├── checkstyle
-    │   └── checkstyle-suppressions.xml <3>
-    └── main
-        └── resources
-            ├── checkstyle-header.txt <2>
-            └── checkstyle.xml <1>
-----
-<1> Default Checkstyle rules
-<2> File header setup
-<3> Default suppression rules
-
-==== Checkstyle configuration
-
-Checkstyle rules are *disabled by default*. To add checkstyle to your project just define the following properties and plugins.
-
-.pom.xml
-----
-<properties>
-<maven-checkstyle-plugin.failsOnError>true</maven-checkstyle-plugin.failsOnError> <1>
-        <maven-checkstyle-plugin.failsOnViolation>true
-        </maven-checkstyle-plugin.failsOnViolation> <2>
-        <maven-checkstyle-plugin.includeTestSourceDirectory>true
-        </maven-checkstyle-plugin.includeTestSourceDirectory> <3>
-</properties>
-
-<build>
-        <plugins>
-            <plugin> <4>
-                <groupId>io.spring.javaformat</groupId>
-                <artifactId>spring-javaformat-maven-plugin</artifactId>
-            </plugin>
-            <plugin> <5>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-checkstyle-plugin</artifactId>
-            </plugin>
-        </plugins>
-
-    <reporting>
-        <plugins>
-            <plugin> <5>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-checkstyle-plugin</artifactId>
-            </plugin>
-        </plugins>
-    </reporting>
-</build>
-----
-<1> Fails the build upon Checkstyle errors
-<2> Fails the build upon Checkstyle violations
-<3> Checkstyle analyzes also the test sources
-<4> Add the Spring Java Format plugin that will reformat your code to pass most of the Checkstyle formatting rules
-<5> Add checkstyle plugin to your build and reporting phases
-
-If you need to suppress some rules (e.g. line length needs to be longer), then it's enough for you to define a file under `${project.root}/src/checkstyle/checkstyle-suppressions.xml` with your suppressions. Example:
-
-.projectRoot/src/checkstyle/checkstyle-suppresions.xml
-----
-<?xml version="1.0"?>
-<!DOCTYPE suppressions PUBLIC
-		"-//Puppy Crawl//DTD Suppressions 1.1//EN"
-		"https://www.puppycrawl.com/dtds/suppressions_1_1.dtd">
-<suppressions>
-	<suppress files=".*ConfigServerApplication\.java" checks="HideUtilityClassConstructor"/>
-	<suppress files=".*ConfigClientWatch\.java" checks="LineLengthCheck"/>
-</suppressions>
-----
-
-It's advisable to copy the `${spring-cloud-build.rootFolder}/.editorconfig` and `${spring-cloud-build.rootFolder}/.springformat` to your project. That way, some default formatting rules will be applied. You can do so by running this script:
-
-```bash
-$ curl https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/master/.editorconfig -o .editorconfig
-$ touch .springformat
-```
-
-=== IDE setup
-
-==== Intellij IDEA
-
-In order to setup Intellij you should import our coding conventions, inspection profiles and set up the checkstyle plugin.
-The following files can be found in the https://github.com/spring-cloud/spring-cloud-build/tree/master/spring-cloud-build-tools[Spring Cloud Build] project.
-
-.spring-cloud-build-tools/
-----
-└── src
-    ├── checkstyle
-    │   └── checkstyle-suppressions.xml <3>
-    └── main
-        └── resources
-            ├── checkstyle-header.txt <2>
-            ├── checkstyle.xml <1>
-            └── intellij
-                ├── Intellij_Project_Defaults.xml <4>
-                └── Intellij_Spring_Boot_Java_Conventions.xml <5>
-----
-<1> Default Checkstyle rules
-<2> File header setup
-<3> Default suppression rules
-<4> Project defaults for Intellij that apply most of Checkstyle rules
-<5> Project style conventions for Intellij that apply most of Checkstyle rules
-
-.Code style
-
-image::https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/{spring-cloud-build-branch}/docs/src/main/asciidoc/images/intellij-code-style.png[Code style]
-
-Go to `File` -> `Settings` -> `Editor` -> `Code style`. There click on the icon next to the `Scheme` section. There, click on the `Import Scheme` value and pick the `Intellij IDEA code style XML` option. Import the `spring-cloud-build-tools/src/main/resources/intellij/Intellij_Spring_Boot_Java_Conventions.xml` file.
-
-.Inspection profiles
-
-image::https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/{spring-cloud-build-branch}/docs/src/main/asciidoc/images/intellij-inspections.png[Code style]
-
-Go to `File` -> `Settings` -> `Editor` -> `Inspections`. There click on the icon next to the `Profile` section. There, click on the `Import Profile` and import the `spring-cloud-build-tools/src/main/resources/intellij/Intellij_Project_Defaults.xml` file.
-
-.Checkstyle
-
-To have Intellij work with Checkstyle, you have to install the `Checkstyle` plugin. It's advisable to also install the `Assertions2Assertj` to automatically convert the JUnit assertions
-
-image::https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/{spring-cloud-build-branch}/docs/src/main/asciidoc/images/intellij-checkstyle.png[Checkstyle]
-
-Go to `File` -> `Settings` -> `Other settings` -> `Checkstyle`. There click on the `+` icon in the `Configuration file` section. There, you'll have to define where the checkstyle rules should be picked from. In the image above, we've picked the rules from the cloned Spring Cloud Build repository. However, you can point to the Spring Cloud Build's GitHub repository (e.g. for the `checkstyle.xml` : `https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/master/spring-cloud-build-tools/src/main/resources/checkstyle.xml`). We need to provide the following variables:
-
-- `checkstyle.header.file` - please point it to the Spring Cloud Build's, `spring-cloud-build-tools/src/main/resources/checkstyle-header.txt` file either in your cloned repo or via the `https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/master/spring-cloud-build-tools/src/main/resources/checkstyle-header.txt` URL.
-- `checkstyle.suppressions.file` - default suppressions. Please point it to the Spring Cloud Build's, `spring-cloud-build-tools/src/checkstyle/checkstyle-suppressions.xml` file either in your cloned repo or via the `https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/master/spring-cloud-build-tools/src/checkstyle/checkstyle-suppressions.xml` URL.
-- `checkstyle.additional.suppressions.file` - this variable corresponds to suppressions in your local project. E.g. you're working on `spring-cloud-contract`. Then point to the `project-root/src/checkstyle/checkstyle-suppressions.xml` folder. Example for `spring-cloud-contract` would be: `/home/username/spring-cloud-contract/src/checkstyle/checkstyle-suppressions.xml`.
-
-IMPORTANT: Remember to set the `Scan Scope` to `All sources` since we apply checkstyle rules for production and test sources.
+NOTE: Spring Cloud is released under the non-restrictive Apache 2.0 license. If you would like to contribute to this section of the documentation or if you find an error, please find the source code and issue trackers in the project at {github-project}[github].
 
+[[license]]
 == License
 
 The project license file is available https://raw.githubusercontent.com/spring-cloud/spring-cloud-netflix/main/LICENSE.txt[here].

docs/antora-playbook.yml

@@ -0,0 +1,33 @@
+antora:
+  extensions:
+    - require: '@springio/antora-extensions'
+      root_component_name: 'cloud-netflix'
+site:
+  title: Spring Cloud Netflix
+  url: https://docs.spring.io/spring-cloud-netflix/reference/
+content:
+  sources:
+    - url: ./..
+      branches: HEAD
+      start_path: docs
+      worktrees: true
+asciidoc:
+  attributes:
+    page-stackoverflow-url: https://stackoverflow.com/tags/spring-cloud
+    page-pagination: ''
+    hide-uri-scheme: '@'
+    tabs-sync-option: '@'
+    chomp: 'all'
+  extensions:
+    - '@asciidoctor/tabs'
+    - '@springio/asciidoctor-extensions'
+  sourcemap: true
+urls:
+  latest_version_segment: ''
+runtime:
+  log:
+    failure_level: warn
+    format: pretty
+ui:
+  bundle:
+    url: https://github.com/spring-io/antora-ui-spring/releases/download/v0.4.15/ui-bundle.zip

docs/antora.yml

@@ -0,0 +1,12 @@
+name: cloud-netflix
+version: true
+title: Spring Cloud Netflix
+nav:
+  - modules/ROOT/nav.adoc
+ext:
+  collector:
+    run:
+      command: ./mvnw --no-transfer-progress -B process-resources -Pdocs -pl docs -Dantora-maven-plugin.phase=none -Dgenerate-docs.phase=none -Dgenerate-readme.phase=none -Dgenerate-cloud-resources.phase=none -Dmaven-dependency-plugin-for-docs.phase=none -Dmaven-dependency-plugin-for-docs-classes.phase=none -DskipTests -DdisableConfigurationProperties
+      local: true
+    scan:
+      dir: ./target/classes/antora-resources/

docs/modules/ROOT/nav.adoc

@@ -0,0 +1,5 @@
+* xref:index.adoc[Introduction]
+* xref:spring-cloud-netflix.adoc[]
+* xref:appendix.adoc[]
+** xref:configprops.adoc[]
+

docs/modules/ROOT/pages/_attributes.adoc

@@ -1,8 +1,6 @@
 :doctype: book
 :idprefix:
 :idseparator: -
-:toc: left
-:toclevels: 4
 :tabsize: 4
 :numbered:
 :sectanchors:
@@ -12,4 +10,4 @@
 :docinfo: shared,private
 
 :sc-ext: java
-:project-full-name: Spring Cloud Netflix
+:project-full-name: Spring Cloud Netflix

docs/modules/ROOT/pages/appendix.adoc

@@ -1,14 +1,13 @@
 :numbered!:
 [appendix]
 [[common-application-properties]]
-== Common application properties
+= Common application properties
+:page-section-summary-toc: 1
 
-include::_attributes.adoc[]
 
 Various properties can be specified inside your `application.properties` file, inside your `application.yml` file, or as command line switches.
-This appendix provides a list of common {project-full-name} properties and references to the underlying classes that consume them.
+This appendix provides a list of common Spring Cloud Netflix properties and references to the underlying classes that consume them.
 
 NOTE: Property contributions can come from additional jar files on your classpath, so you should not consider this an exhaustive list.
 Also, you can define your own properties.
 
-include::_configprops.adoc[]

docs/modules/ROOT/pages/configprops.adoc

@@ -0,0 +1,6 @@
+[[configuration-properties]]
+= Configuration Properties
+
+Below you can find a list of configuration properties.
+
+include::partial$_configprops.adoc[]

docs/modules/ROOT/pages/index.adoc

@@ -0,0 +1 @@
+include::intro.adoc[]

docs/modules/ROOT/pages/intro.adoc

@@ -1,4 +1,5 @@
-include::_attributes.adoc[]
+[[introduction]]
+= Spring Cloud Netflix
 
 This project provides Netflix OSS integrations for Spring Boot apps through autoconfiguration
 and binding to the Spring Environment and other Spring programming model idioms. With a few

docs/modules/ROOT/pages/spring-cloud-netflix.adoc

@@ -1,20 +1,256 @@
-include::_attributes.adoc[]
+[[features]]
+= Spring Cloud Netflix Features
+
+[[spring-cloud-eureka-server]]
+== Service Discovery: Eureka Server
+
+Eureka Server acts as a service registry that Eureka clients use to discover other services.
+You can run Eureka as a standalone server or configure multiple peer-aware servers for higher availability.
+
+The following sections show how to get started with Eureka Server and then describe standalone and peer-aware deployments.
+
+[[netflix-eureka-server-starter]]
+=== How to Include Eureka Server
+
+To include Eureka Server in your project, use the starter with a group ID of `org.springframework.cloud` and an artifact ID of `spring-cloud-starter-netflix-eureka-server`.
+See the https://projects.spring.io/spring-cloud/[Spring Cloud Project page] for details on setting up your build system with the current Spring Cloud Release Train.
+
+NOTE: If your project already uses Thymeleaf as its template engine, the Freemarker templates of the Eureka server may not be loaded correctly. In this case it is necessary to configure the template loader manually:
+
+.application.yml
+----
+spring:
+  freemarker:
+    template-loader-path: classpath:/templates/
+    prefer-file-system-access: false
+----
+
+[[spring-cloud-running-eureka-server]]
+=== Quick Start
+
+The following example shows a minimal Eureka server:
+
+[source,java,indent=0]
+----
+@SpringBootApplication
+@EnableEurekaServer
+public class Application {
+
+    public static void main(String[] args) {
+        SpringApplication.run(Application.class, args);
+    }
+
+}
+----
+
+For a single standalone Eureka server, disable the client-side behavior so that the server does not attempt to register with or fetch the registry from a peer:
+
+.application.yml
+----
+eureka:
+  client:
+    registerWithEureka: false
+    fetchRegistry: false
+----
 
 
-:github-tag: main
-:github-repo: spring-cloud/spring-cloud-netflix
-:github-raw: https://raw.github.com/{github-repo}/{github-tag}
-:github-code: https://github.com/{github-repo}/tree/{github-tag}
-:all: {asterisk}{asterisk}
-:nofooter:
-:branch: main
+The server has a home page with a UI and HTTP API endpoints for the normal Eureka functionality under `/eureka/*`.
 
-= Spring Cloud Netflix
+[TIP]
+====
+Due to Gradle's dependency resolution rules and the lack of a parent bom feature, depending on `spring-cloud-starter-netflix-eureka-server` can cause failures on application startup.
+To remedy this issue, add the Spring Boot Gradle plugin and import the Spring cloud starter parent bom as follows:
 
-*{spring-cloud-version}*
+.build.gradle
+[source,java,indent=0]
+----
+buildscript {
+  dependencies {
+    classpath("org.springframework.boot:spring-boot-gradle-plugin:{spring-boot-docs-version}")
+  }
+}
 
-include::intro.adoc[]
+apply plugin: "spring-boot"
 
+dependencyManagement {
+  imports {
+    mavenBom "org.springframework.cloud:spring-cloud-dependencies:{spring-cloud-version}"
+  }
+}
+----
+====
+
+=== `defaultOpenForTrafficCount` and its effect on EurekaServer warmup time
+
+Netflix Eureka's `waitTimeInMsWhenSyncEmpty` setting is not taken into account in Spring Cloud Eureka server at the beginning. In order to enable the warmup time, set `eureka.server.defaultOpenForTrafficCount=0`.
+
+[[spring-cloud-eureka-server-zones-and-regions]]
+=== High Availability, Zones and Regions
+
+The Eureka server does not have a back end store, but the service instances in the registry all have to send heartbeats to keep their registrations up to date (so this can be done in memory).
+Clients also have an in-memory cache of Eureka registrations (so they do not have to go to the registry for every request to a service).
+
+By default, every Eureka server is also a Eureka client and requires (at least one) service URL to locate a peer.
+If you do not provide it, the service runs and works, but it fills your logs with a lot of noise about not being able to register with the peer.
+
+[[spring-cloud-eureka-server-standalone-mode]]
+=== Standalone Mode
+
+The combination of the two caches (client and server) and the heartbeats make a standalone Eureka server fairly resilient to failure, as long as there is some sort of monitor or elastic runtime (such as Cloud Foundry) keeping it alive.
+In standalone mode, you might prefer to switch off the client side behavior so that it does not keep trying and failing to reach its peers.
+The following example shows how to switch off the client-side behavior:
+
+.application.yml (Standalone Eureka Server)
+----
+server:
+  port: 8761
+
+eureka:
+  instance:
+    hostname: localhost
+  client:
+    registerWithEureka: false
+    fetchRegistry: false
+    serviceUrl:
+      defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/
+----
+
+Notice that the `serviceUrl` is pointing to the same host as the local instance.
+
+[[spring-cloud-eureka-server-peer-awareness]]
+=== Peer Awareness
+
+Eureka can be made even more resilient and available by running multiple instances and asking them to register with each other.
+In fact, this is the default behavior, so all you need to do to make it work is add a valid `serviceUrl` to a peer, as shown in the following example:
+
+.application.yml (Two Peer Aware Eureka Servers)
+----
+
+---
+spring:
+  profiles: peer1
+eureka:
+  instance:
+    hostname: peer1
+  client:
+    serviceUrl:
+      defaultZone: https://peer2/eureka/
+
+---
+spring:
+  profiles: peer2
+eureka:
+  instance:
+    hostname: peer2
+  client:
+    serviceUrl:
+      defaultZone: https://peer1/eureka/
+----
+
+In the preceding example, we have a YAML file that can be used to run the same server on two hosts (`peer1` and `peer2`) by running it in different Spring profiles.
+You could use this configuration to test the peer awareness on a single host (there is not much value in doing that in production) by manipulating `/etc/hosts` to resolve the host names.
+In fact, the `eureka.instance.hostname` is not needed if you are running on a machine that knows its own hostname (by default, it is looked up by using `java.net.InetAddress`).
+
+You can add multiple peers to a system, and, as long as they are all connected to each other by at least one edge, they synchronize
+the registrations amongst themselves.
+If the peers are physically separated (inside a data center or between multiple data centers), then the system can, in principle, survive "`split-brain`" type failures.
+You can add multiple peers to a system, and as long as they are all
+directly connected to each other, they will synchronize
+the registrations amongst themselves.
+
+.application.yml (Three Peer Aware Eureka Servers)
+----
+eureka:
+  client:
+    serviceUrl:
+      defaultZone: https://peer1/eureka/,http://peer2/eureka/,http://peer3/eureka/
+
+---
+spring:
+  profiles: peer1
+eureka:
+  instance:
+    hostname: peer1
+
+---
+spring:
+  profiles: peer2
+eureka:
+  instance:
+    hostname: peer2
+
+---
+spring:
+  profiles: peer3
+eureka:
+  instance:
+    hostname: peer3
+----
+
+[[spring-cloud-eureka-server-prefer-ip-address]]
+=== When to Prefer IP Address
+
+In some cases, it is preferable for Eureka to advertise the IP addresses of services rather than the hostname.
+Set `eureka.instance.preferIpAddress` to `true` and, when the application registers with eureka, it uses its IP address rather than its hostname.
+
+[TIP]
+====
+If the hostname cannot be determined by Java, then the IP address is sent to Eureka.
+Only explicit way of setting the hostname is by setting `eureka.instance.hostname` property.
+You can set your hostname at the run-time by using an environment variable -- for example, `eureka.instance.hostname=$\{HOST_NAME}`.
+====
+
+=== Securing The Eureka Server
+
+You can secure your Eureka server simply by adding Spring Security to your
+server's classpath via `spring-boot-starter-security`.  By default, when Spring Security is on the classpath it will require that
+a valid CSRF token be sent with every request to the app.  Eureka clients will not generally possess a valid
+cross site request forgery (CSRF) token you will need to disable this requirement for the `/eureka/**` endpoints.
+For example:
+
+[source,java,indent=0]
+----
+@Bean
+public SecurityFilterChain securityFilterChain(HttpSecurity http) throws Exception {
+	http.authorizeHttpRequests((authz) -> authz
+        .anyRequest().authenticated())
+	    .httpBasic(withDefaults());
+    http.csrf().ignoringRequestMatchers("/eureka/**");
+    return http.build();
+}
+----
+
+For more information on CSRF see the https://docs.spring.io/spring-security/site/docs/current/reference/htmlsingle/#csrf[Spring Security documentation].
+
+A demo Eureka Server can be found in the Spring Cloud Samples https://github.com/spring-cloud-samples/eureka/tree/Eureka-With-Security-4.x[repo].
+
+=== JDK 11 Support
+
+The JAXB modules which the Eureka server depends upon were removed in JDK 11.  If you intend to use JDK 11
+when running a Eureka server you must include these dependencies in your POM or Gradle file.
+
+[source,xml,indent=0]
+----
+<dependency>
+	<groupId>org.glassfish.jaxb</groupId>
+	<artifactId>jaxb-runtime</artifactId>
+</dependency>
+----
+
+=== AOT and Native Image Support
+
+Spring Cloud Netflix Eureka Server does not support Spring AOT transformations or native images.
+
+=== Metrics
+
+`EurekaInstanceMonitor` listens to events related to Eureka instance registration and creates/updates `Gauge`s for Eureka instance information in Micrometer's `MeterRegistry`. By default, this behavior is disabled. If you want to enable it, you need to set `eureka.server.metrics.enabled` to `true`.
+
+By default, the `Gauge`s are named `eureka.server.instances` and have the following tags:
+
+- `application`: application name
+- `status`: instance status (`UP`, `DOWN`, `STARTING`, `OUT_OF_SERVICE`, `UNKNOWN`, see: `com.netflix.appinfo.InstanceInfo.InstanceStatus`)
+
+You can add additional tags by injecting your own implementation of `EurekaInstanceTagsProvider`.
 
 == Service Discovery: Eureka Clients
 
@@ -50,8 +286,9 @@ public class Application {
     }
 
     public static void main(String[] args) {
-        new SpringApplicationBuilder(Application.class).web(true).run(args);
-    }
+		SpringApplication.run(CustomerServiceTestApplication.class, args);
+	}
+
 
 }
 ----
@@ -73,6 +310,8 @@ WARNING: The `defaultZone` property is case sensitive and requires camel case be
 
 The default application name (that is, the service ID), virtual host, and non-secure port (taken from the `Environment`) are `${spring.application.name}`, `${spring.application.name}` and `${server.port}`, respectively.
 
+NOTE: By default, the Eureka application name and virtual host are both derived from `spring.application.name`. If you configure `eureka.instance.virtualHostName` differently, use the virtual host name when looking up instances through Spring Cloud's `DiscoveryClient`.
+
 Having `spring-cloud-starter-netflix-eureka-client` on the classpath makes the app into both a Eureka "`instance`" (that is, it registers itself) and a "`client`" (it can query the registry to locate other services).
 The instance behaviour is driven by `eureka.instance.*` configuration keys, but the defaults are fine if you ensure that your application has a value for `spring.application.name` (this is the default for the Eureka service ID or VIP).
 
@@ -80,6 +319,9 @@ See {github-code}/spring-cloud-netflix-eureka-client/src/main/java/org/springfra
 
 To disable the Eureka Discovery Client, you can set `eureka.client.enabled` to `false`. Eureka Discovery Client will also be disabled when `spring.cloud.discovery.enabled` is set to `false`.
 
+
+NOTE: Specifying the version of the Spring Cloud Netflix Eureka server as a path parameter is not currently supported. This means you cannot set the version in the context path (`eurekaServerURLContext`). Instead, you can include the version in the server URL (for example, you can set `defaultZone: http://localhost:8761/eureka/v2`).
+
 === Authenticating with the Eureka Server
 
 HTTP basic authentication is automatically added to your eureka client if one of the `eureka.client.serviceUrl.defaultZone` URLs has credentials embedded in it (curl style, as follows: `https://user:password@localhost:8761/eureka`).
@@ -107,7 +349,40 @@ The `eureka.client.tls.enabled` needs to be true to enable Eureka client side TL
 
 NOTE: Because of a limitation in Eureka, it is not possible to support per-server basic auth credentials, so only the first set that are found is used.
 
-If you want to customize the RestTemplate used by the Eureka HTTP Client you may want to create a bean of `EurekaClientHttpRequestFactorySupplier` and provide your own logic for generating a `ClientHttpRequestFactory` instance.
+If you want to customize the `RestClient` used by the Eureka HTTP Client you may want to create a bean of `EurekaClientHttpRequestFactorySupplier` and provide your own logic for generating a `ClientHttpRequestFactory` instance.
+
+All default timeout-related properties for `RestClient` used by the Eureka HTTP Client are set to 3 minutes (in keeping with Apache HC5 default `RequestConfig` and `SocketConfig`). Therefore, to specify the timeout values, you must specify the value directly with the properties in `eureka.client.timeout`. All timeout properties are in milliseconds.
+
+.application.yml
+[source,yaml]
+----
+eureka:
+  client:
+    restclient:
+      timeout:
+        connect-timeout: 5000
+        connect-request-timeout: 8000
+        socket-timeout: 10000
+    rest-template-timeout:
+      connect-timeout: 5000
+      connect-request-timeout: 8000
+      socket-timeout: 10000
+----
+
+You can also customise the `RequestConfig` for the underlying Apache HttpClient 5 by creating a bean of type `EurekaClientHttpRequestFactorySupplier.RequestConfigCustomizer`:
+
+[source,java,indent=0]
+----
+@Configuration
+public class RestClientConfiguration {
+
+	@Bean
+	EurekaClientHttpRequestFactorySupplier.RequestConfigCustomizer requestConfigCustomizer() {
+		return builder -> builder.setProtocolUpgradeEnabled(false);
+	}
+
+}
+----
 
 === Status Page and Health Indicator
 
@@ -266,32 +541,46 @@ Do not use the `EurekaClient` in a `@PostConstruct` method or in a `@Scheduled`
 It is initialized in a `SmartLifecycle` (with `phase=0`), so the earliest you can rely on it being available is in another `SmartLifecycle` with a higher phase.
 ====
 
-==== EurekaClient without Jersey
+==== Underlying HTTP clients
+
+`EurekaClient` uses either `RestClient`, `WebClient` or `JerseyClient` under the hood. In order to use the `EurekaClient`, you need to have one of the supported HTTP clients on your classpath.
+
+To use `RestClient`, add `spring-boot-restclient` to your dependencies. To use `WebClient`, add `spring-boot-webclient` to your dependencies. If both `spring-boot-restclient`
+and `spring-boot-webclient` are included in the dependencies and the `eureka.client.webclient.enabled` flag is set to `true`,
+then `WebClient` will be used. If that's not the case, `RestClient` will be used.
+
+NOTE: For any of those client implementations, if there's a builder bean available, it will be used to create the underlying client.
+
+NOTE: We're planning on changing the default client to `RestClient` with the next major release.
 
-By default, EurekaClient uses Spring's `RestTemplate` for HTTP communication.
 If you wish to use Jersey instead, you need to add the Jersey dependencies to your classpath.
 The following example shows the dependencies you need to add:
 
+[source,xml]
 ----
-<dependency>
-    <groupId>com.sun.jersey</groupId>
-    <artifactId>jersey-client</artifactId>
-</dependency>
-<dependency>
-    <groupId>com.sun.jersey</groupId>
-    <artifactId>jersey-core</artifactId>
-</dependency>
-<dependency>
-    <groupId>com.sun.jersey.contribs</groupId>
-    <artifactId>jersey-apache-client4</artifactId>
-</dependency>
+<dependencies>
+    <dependency>
+        <groupId>com.sun.jersey</groupId>
+        <artifactId>jersey-client</artifactId>
+    </dependency>
+    <dependency>
+        <groupId>com.sun.jersey</groupId>
+        <artifactId>jersey-core</artifactId>
+    </dependency>
+    <dependency>
+        <groupId>com.sun.jersey.contribs</groupId>
+        <artifactId>jersey-apache-client4</artifactId>
+    </dependency>
+</dependencies>
 ----
 
+If you have `JerseyClient` on the classpath but do not wish to use it in your `EuerekaClient`, make sure to set `eureka.client.jersey.enabled` to `false`.
+
 === Alternatives to the Native Netflix EurekaClient
 
 You need not use the raw Netflix `EurekaClient`.
 Also, it is usually more convenient to use it behind a wrapper of some sort.
-Spring Cloud has support for <<spring-cloud-feign, Feign>> (a REST client builder) and <<spring-cloud-ribbon, Spring `RestTemplate`>> through the logical Eureka service identifiers (VIPs) instead of physical URLs.
+Spring Cloud has support for <<spring-cloud-feign, Feign>> (a REST client builder) and https://docs.spring.io/spring-cloud-commons/reference/4.1/spring-cloud-commons/loadbalancer.html[Spring Cloud LoadBalancer] through the logical Eureka service identifiers (VIPs) instead of physical URLs.
 
 You can also use the `org.springframework.cloud.client.discovery.DiscoveryClient`, which provides a simple API (not specific to Netflix) for discovery clients, as shown in the following example:
 
@@ -355,7 +644,7 @@ the ability to refresh Eureka clients.  To do this set `eureka.client.refresh.en
 
 We offer support for the Spring Cloud LoadBalancer `ZonePreferenceServiceInstanceListSupplier`.
 The `zone` value from the Eureka instance metadata (`eureka.instance.metadataMap.zone`) is used for setting the
-value of `spring-clod-loadbalancer-zone` property that is used to filter service instances by zone.
+value of `spring-cloud-loadbalancer-zone` property that is used to filter service instances by zone.
 
 If that is missing and if the `spring.cloud.loadbalancer.eureka.approximateZoneFromHostname` flag is set to `true`,
 it can use the domain name from the server hostname as a proxy for the zone.
@@ -363,230 +652,17 @@ it can use the domain name from the server hostname as a proxy for the zone.
 If there is no other source of zone data, then a guess is made, based on the client configuration (as opposed to the instance configuration).
 We take `eureka.client.availabilityZones`, which is a map from region name to a list of zones, and pull out the first zone for the instance's own region (that is, the `eureka.client.region`, which defaults to "us-east-1", for compatibility with native Netflix).
 
-[[spring-cloud-eureka-server]]
-== Service Discovery: Eureka Server
+=== AOT and Native Image Support
 
-This section describes how to set up a Eureka server.
+Spring Cloud Netflix Eureka Client integration supports Spring AOT transformations and native images, however, only with refresh mode disabled.
 
-[[netflix-eureka-server-starter]]
-=== How to Include Eureka Server
+WARNING: If you want to run Eureka Client in AOT or native image modes, make sure to set `spring.cloud.refresh.enabled` to `false`.
 
-To include Eureka Server in your project, use the starter with a group ID of `org.springframework.cloud` and an artifact ID of `spring-cloud-starter-netflix-eureka-server`.
-See the https://projects.spring.io/spring-cloud/[Spring Cloud Project page] for details on setting up your build system with the current Spring Cloud Release Train.
-
-NOTE: If your project already uses Thymeleaf as its template engine, the Freemarker templates of the Eureka server may not be loaded correctly. In this case it is necessary to configure the template loader manually:
-
-.application.yml
-----
-spring:
-  freemarker:
-    template-loader-path: classpath:/templates/
-    prefer-file-system-access: false
-----
-
-[[spring-cloud-running-eureka-server]]
-=== How to Run a Eureka Server
-
-The following example shows a minimal Eureka server:
-
-[source,java,indent=0]
-----
-@SpringBootApplication
-@EnableEurekaServer
-public class Application {
-
-    public static void main(String[] args) {
-        new SpringApplicationBuilder(Application.class).web(true).run(args);
-    }
-
-}
-----
-
-The server has a home page with a UI and HTTP API endpoints for the normal Eureka functionality under `/eureka/*`.
-
-The following links have some Eureka background reading:  https://github.com/cfregly/fluxcapacitor/wiki/NetflixOSS-FAQ#eureka-service-discovery-load-balancer[flux capacitor] and https://groups.google.com/forum/?fromgroups#!topic/eureka_netflix/g3p2r7gHnN0[google group discussion].
-
-[TIP]
-====
-Due to Gradle's dependency resolution rules and the lack of a parent bom feature, depending on `spring-cloud-starter-netflix-eureka-server` can cause failures on application startup.
-To remedy this issue, add the Spring Boot Gradle plugin and import the Spring cloud starter parent bom as follows:
-
-.build.gradle
-[source,java,indent=0]
-----
-buildscript {
-  dependencies {
-    classpath("org.springframework.boot:spring-boot-gradle-plugin:{spring-boot-docs-version}")
-  }
-}
-
-apply plugin: "spring-boot"
-
-dependencyManagement {
-  imports {
-    mavenBom "org.springframework.cloud:spring-cloud-dependencies:{spring-cloud-version}"
-  }
-}
-----
-====
-
-[[spring-cloud-eureka-server-zones-and-regions]]
-=== High Availability, Zones and Regions
-
-The Eureka server does not have a back end store, but the service instances in the registry all have to send heartbeats to keep their registrations up to date (so this can be done in memory).
-Clients also have an in-memory cache of Eureka registrations (so they do not have to go to the registry for every request to a service).
-
-By default, every Eureka server is also a Eureka client and requires (at least one) service URL to locate a peer.
-If you do not provide it, the service runs and works, but it fills your logs with a lot of noise about not being able to register with the peer.
-
-[[spring-cloud-eureka-server-standalone-mode]]
-=== Standalone Mode
-
-The combination of the two caches (client and server) and the heartbeats make a standalone Eureka server fairly resilient to failure, as long as there is some sort of monitor or elastic runtime (such as Cloud Foundry) keeping it alive.
-In standalone mode, you might prefer to switch off the client side behavior so that it does not keep trying and failing to reach its peers.
-The following example shows how to switch off the client-side behavior:
-
-.application.yml (Standalone Eureka Server)
-----
-server:
-  port: 8761
-
-eureka:
-  instance:
-    hostname: localhost
-  client:
-    registerWithEureka: false
-    fetchRegistry: false
-    serviceUrl:
-      defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/
-----
-
-Notice that the `serviceUrl` is pointing to the same host as the local instance.
-
-[[spring-cloud-eureka-server-peer-awareness]]
-=== Peer Awareness
-
-Eureka can be made even more resilient and available by running multiple instances and asking them to register with each other.
-In fact, this is the default behavior, so all you need to do to make it work is add a valid `serviceUrl` to a peer, as shown in the following example:
-
-.application.yml (Two Peer Aware Eureka Servers)
-----
-
----
-spring:
-  profiles: peer1
-eureka:
-  instance:
-    hostname: peer1
-  client:
-    serviceUrl:
-      defaultZone: https://peer2/eureka/
-
----
-spring:
-  profiles: peer2
-eureka:
-  instance:
-    hostname: peer2
-  client:
-    serviceUrl:
-      defaultZone: https://peer1/eureka/
-----
-
-In the preceding example, we have a YAML file that can be used to run the same server on two hosts (`peer1` and `peer2`) by running it in different Spring profiles.
-You could use this configuration to test the peer awareness on a single host (there is not much value in doing that in production) by manipulating `/etc/hosts` to resolve the host names.
-In fact, the `eureka.instance.hostname` is not needed if you are running on a machine that knows its own hostname (by default, it is looked up by using `java.net.InetAddress`).
-
-You can add multiple peers to a system, and, as long as they are all connected to each other by at least one edge, they synchronize
-the registrations amongst themselves.
-If the peers are physically separated (inside a data center or between multiple data centers), then the system can, in principle, survive "`split-brain`" type failures.
-You can add multiple peers to a system, and as long as they are all
-directly connected to each other, they will synchronize
-the registrations amongst themselves. 
-
-.application.yml (Three Peer Aware Eureka Servers)
-----
-eureka:
-  client:
-    serviceUrl:
-      defaultZone: https://peer1/eureka/,http://peer2/eureka/,http://peer3/eureka/
-      
----
-spring:
-  profiles: peer1
-eureka:
-  instance:
-    hostname: peer1
-
----
-spring:
-  profiles: peer2
-eureka:
-  instance:
-    hostname: peer2
-
----
-spring:
-  profiles: peer3
-eureka:
-  instance:
-    hostname: peer3
-----
-
-[[spring-cloud-eureka-server-prefer-ip-address]]
-=== When to Prefer IP Address
-
-In some cases, it is preferable for Eureka to advertise the IP addresses of services rather than the hostname.
-Set `eureka.instance.preferIpAddress` to `true` and, when the application registers with eureka, it uses its IP address rather than its hostname.
-
-[TIP]
-====
-If the hostname cannot be determined by Java, then the IP address is sent to Eureka.
-Only explict way of setting the hostname is by setting `eureka.instance.hostname` property.
-You can set your hostname at the run-time by using an environment variable -- for example, `eureka.instance.hostname=${HOST_NAME}`.
-====
-
-=== Securing The Eureka Server
-
-You can secure your Eureka server simply by adding Spring Security to your
-server's classpath via `spring-boot-starter-security`.  By default when Spring Security is on the classpath it will require that
-a valid CSRF token be sent with every request to the app.  Eureka clients will not generally possess a valid
-cross site request forgery (CSRF) token you will need to disable this requirement for the `/eureka/**` endpoints.
-For example: 
-
-[source,java,indent=0]
-----
-@EnableWebSecurity
-class WebSecurityConfig extends WebSecurityConfigurerAdapter {
-
-    @Override
-    protected void configure(HttpSecurity http) throws Exception {
-        http.csrf().ignoringAntMatchers("/eureka/**");
-        super.configure(http);
-    }
-}
-----
-
-For more information on CSRF see the https://docs.spring.io/spring-security/site/docs/current/reference/htmlsingle/#csrf[Spring Security documentation].
-
-A demo Eureka Server can be found in the Spring Cloud Samples https://github.com/spring-cloud-samples/eureka/tree/Eureka-With-Security[repo].
-
-=== JDK 11 Support
-
-The JAXB modules which the Eureka server depends upon were removed in JDK 11.  If you intend to use JDK 11
-when running a Eureka server you must include these dependencies in your POM or Gradle file.
-
-[source,xml,indent=0]
-----
-<dependency>
-	<groupId>org.glassfish.jaxb</groupId>
-	<artifactId>jaxb-runtime</artifactId>
-</dependency>
-----
-
-== Configuration properties
+NOTE:  Given the AOT and native image closed-world assumption, using random port with Eureka clients is not supported for ahead of time compilation or native images.
 
 To see the list of all Spring Cloud Netflix related configuration properties please check link:appendix.html[the Appendix page].
 
+== Configuration properties
+
 
 

docs/modules/ROOT/partials/_configprops.adoc

@@ -0,0 +1,270 @@
+|===
+|Name | Default | Description
+
+|eureka.client.allow-redirects | `+++false+++` | Indicates whether server can redirect a client request to a backup server/cluster. If set to false, the server will handle the request directly, If set to true, it may send HTTP redirect to the client, with a new server location.
+|eureka.client.availability-zones |  | Gets the list of availability zones (used in AWS data centers) for the region in which this instance resides. The changes are effective at runtime at the next registry fetch cycle as specified by registryFetchIntervalSeconds.
+|eureka.client.backup-registry-impl |  | Gets the name of the implementation which implements BackupRegistry to fetch the registry information as a fallback option for only the first time when the eureka client starts. This may be needed for applications which needs additional resiliency for registry information without which it cannot operate.
+|eureka.client.cache-refresh-executor-exponential-back-off-bound | `+++10+++` | Cache refresh executor exponential back off related property. It is a maximum multiplier value for retry delay, in case where a sequence of timeouts occurred.
+|eureka.client.cache-refresh-executor-thread-pool-size | `+++2+++` | The thread pool size for the cacheRefreshExecutor to initialise with.
+|eureka.client.client-data-accept |  | EurekaAccept name for client data accept.
+|eureka.client.decoder-name |  | This is a transient config and once the latest codecs are stable, can be removed (as there will only be one).
+|eureka.client.disable-delta | `+++false+++` | Indicates whether the eureka client should disable fetching of delta and should rather resort to getting the full registry information. Note that the delta fetches can reduce the traffic tremendously, because the rate of change with the eureka server is normally much lower than the rate of fetches. The changes are effective at runtime at the next registry fetch cycle as specified by registryFetchIntervalSeconds
+|eureka.client.dollar-replacement | `+++_-+++` | Get a replacement string for Dollar sign <code>$</code> during serializing/deserializing information in eureka server.
+|eureka.client.enabled | `+++true+++` | Flag to indicate that the Eureka client is enabled.
+|eureka.client.encoder-name |  | This is a transient config and once the latest codecs are stable, can be removed (as there will only be one).
+|eureka.client.escape-char-replacement | `+++__+++` | Get a replacement string for underscore sign <code>_</code> during serializing/ deserializing information in eureka server.
+|eureka.client.eureka-connection-idle-timeout-seconds | `+++30+++` | Indicates how much time (in seconds) that the HTTP connections to eureka server can stay idle before it can be closed. In the AWS environment, it is recommended that the values is 30 seconds or less, since the firewall cleans up the connection information after a few mins leaving the connection hanging in limbo.
+|eureka.client.eureka-server-connect-timeout-seconds | `+++5+++` | Indicates how long to wait (in seconds) before a connection to eureka server needs to timeout. Note that the connections in the client are pooled by {@link HttpClient} and this setting affects the actual connection creation and also the wait time to get the connection from the pool.
+|eureka.client.eureka-server-d-n-s-name |  | Gets the DNS name to be queried to get the list of eureka servers.This information is not required if the contract returns the service urls by implementing serviceUrls. The DNS mechanism is used when useDnsForFetchingServiceUrls is set to true and the eureka client expects the DNS to configured a certain way so that it can fetch changing eureka servers dynamically. The changes are effective at runtime.
+|eureka.client.eureka-server-port |  | Gets the port to be used to construct the service url to contact eureka server when the list of eureka servers come from the DNS.This information is not required if the contract returns the service urls eurekaServerServiceUrls(String). The DNS mechanism is used when useDnsForFetchingServiceUrls is set to true and the eureka client expects the DNS to configured a certain way so that it can fetch changing eureka servers dynamically. The changes are effective at runtime.
+|eureka.client.eureka-server-read-timeout-seconds | `+++8+++` | Indicates how long to wait (in seconds) before a read from eureka server needs to timeout.
+|eureka.client.eureka-server-total-connections | `+++200+++` | Gets the total number of connections that is allowed from eureka client to all eureka servers.
+|eureka.client.eureka-server-total-connections-per-host | `+++50+++` | Gets the total number of connections that is allowed from eureka client to a eureka server host.
+|eureka.client.eureka-server-u-r-l-context |  | Gets the URL context to be used to construct the service url to contact eureka server when the list of eureka servers come from the DNS. This information is not required if the contract returns the service urls from eurekaServerServiceUrls. The DNS mechanism is used when useDnsForFetchingServiceUrls is set to true and the eureka client expects the DNS to configured a certain way so that it can fetch changing eureka servers dynamically. The changes are effective at runtime.
+|eureka.client.eureka-service-url-poll-interval-seconds | `+++300+++` | Indicates how often(in seconds) to poll for changes to eureka server information. Eureka servers could be added or removed and this setting controls how soon the eureka clients should know about it.
+|eureka.client.fetch-registry | `+++true+++` | Indicates whether this client should fetch eureka registry information from eureka server.
+|eureka.client.fetch-remote-regions-registry |  | Comma separated list of regions for which the eureka registry information will be fetched. It is mandatory to define the availability zones for each of these regions as returned by availabilityZones. Failing to do so, will result in failure of discovery client startup.
+|eureka.client.filter-only-up-instances | `+++true+++` | Indicates whether to get the applications after filtering the applications for instances with only InstanceStatus UP states.
+|eureka.client.g-zip-content | `+++true+++` | Indicates whether the content fetched from eureka server has to be compressed whenever it is supported by the server. The registry information from the eureka server is compressed for optimum network traffic.
+|eureka.client.healthcheck.enabled | `+++true+++` | Enables the Eureka health check handler.
+|eureka.client.heartbeat-executor-exponential-back-off-bound | `+++10+++` | Heartbeat executor exponential back off related property. It is a maximum multiplier value for retry delay, in case where a sequence of timeouts occurred.
+|eureka.client.heartbeat-executor-thread-pool-size | `+++2+++` | The thread pool size for the heartbeatExecutor to initialise with.
+|eureka.client.initial-instance-info-replication-interval-seconds | `+++40+++` | Indicates how long initially (in seconds) to replicate instance info to the eureka server.
+|eureka.client.instance-info-replication-interval-seconds | `+++30+++` | Indicates how often(in seconds) to replicate instance changes to be replicated to the eureka server.
+|eureka.client.jersey.enabled | `+++true+++` | Enables the use of JerseyClient for Eureka HTTP Client.
+|eureka.client.log-delta-diff | `+++false+++` | Indicates whether to log differences between the eureka server and the eureka client in terms of registry information. Eureka client tries to retrieve only delta changes from eureka server to minimize network traffic. After receiving the deltas, eureka client reconciles the information from the server to verify it has not missed out some information. Reconciliation failures could happen when the client has had network issues communicating to server.If the reconciliation fails, eureka client gets the full registry information. While getting the full registry information, the eureka client can log the differences between the client and the server and this setting controls that. The changes are effective at runtime at the next registry fetch cycle as specified by registryFetchIntervalSecondsr
+|eureka.client.on-demand-update-status-change | `+++true+++` | If set to true, local status updates via ApplicationInfoManager will trigger on-demand (but rate limited) register/updates to remote eureka servers.
+|eureka.client.order | `+++0+++` | Order of the discovery client used by `CompositeDiscoveryClient` for sorting available clients.
+|eureka.client.prefer-same-zone-eureka | `+++true+++` | Indicates whether or not this instance should try to use the eureka server in the same zone for latency and/or other reason. Ideally eureka clients are configured to talk to servers in the same zone The changes are effective at runtime at the next registry fetch cycle as specified by registryFetchIntervalSeconds
+|eureka.client.property-resolver |  | 
+|eureka.client.proxy-host |  | Gets the proxy host to eureka server if any.
+|eureka.client.proxy-password |  | Gets the proxy password if any.
+|eureka.client.proxy-port |  | Gets the proxy port to eureka server if any.
+|eureka.client.proxy-user-name |  | Gets the proxy user name if any.
+|eureka.client.refresh.enable | `+++true+++` | Determines whether the EurekaClient instance can be refreshed or not(If disabled none of the Eureka client properties will be refreshable).
+|eureka.client.region | `+++us-east-1+++` | Gets the region (used in AWS datacenters) where this instance resides.
+|eureka.client.register-with-eureka | `+++true+++` | Indicates whether or not this instance should register its information with eureka server for discovery by others. In some cases, you do not want your instances to be discovered whereas you just want do discover other instances.
+|eureka.client.registry-fetch-interval-seconds | `+++30+++` | Indicates how often(in seconds) to fetch the registry information from the eureka server.
+|eureka.client.registry-refresh-single-vip-address |  | Indicates whether the client is only interested in the registry information for a single VIP.
+|eureka.client.service-url |  | Map of availability zone to list of fully qualified URLs to communicate with eureka server. Each value can be a single URL or a comma separated list of alternative locations. Typically the eureka server URLs carry protocol,host,port,context and version information if any. Example: https://ec2-256-156-243-129.compute-1.amazonaws.com:7001/eureka/ The changes are effective at runtime at the next service url refresh cycle as specified by eurekaServiceUrlPollIntervalSeconds.
+|eureka.client.should-enforce-registration-at-init | `+++false+++` | Indicates whether the client should enforce registration during initialization. Defaults to false.
+|eureka.client.should-unregister-on-shutdown | `+++true+++` | Indicates whether the client should explicitly unregister itself from the remote server on client shutdown.
+|eureka.client.timeout.connect-request-timeout | `+++180000+++` | 
+|eureka.client.timeout.connect-timeout | `+++180000+++` | Default values are set to 180000, in keeping with {@link RequestConfig} and {@link SocketConfig} defaults.
+|eureka.client.timeout.socket-timeout | `+++180000+++` | 
+|eureka.client.tls.enabled |  | 
+|eureka.client.tls.key-password |  | 
+|eureka.client.tls.key-store |  | 
+|eureka.client.tls.key-store-password |  | 
+|eureka.client.tls.key-store-type |  | 
+|eureka.client.tls.trust-store |  | 
+|eureka.client.tls.trust-store-password |  | 
+|eureka.client.tls.trust-store-type |  | 
+|eureka.client.use-dns-for-fetching-service-urls | `+++false+++` | Indicates whether the eureka client should use the DNS mechanism to fetch a list of eureka servers to talk to. When the DNS name is updated to have additional servers, that information is used immediately after the eureka client polls for that information as specified in eurekaServiceUrlPollIntervalSeconds. Alternatively, the service urls can be returned serviceUrls, but the users should implement their own mechanism to return the updated list in case of changes. The changes are effective at runtime.
+|eureka.client.webclient.enabled | `+++false+++` | Enables the use of WebClient for Eureka HTTP Client.
+|eureka.dashboard.enabled | `+++true+++` | Flag to enable the Eureka dashboard. Default true.
+|eureka.dashboard.path | `+++/+++` | The path to the Eureka dashboard (relative to the servlet path). Defaults to "/".
+|eureka.datacenter | `+++default+++` | Eureka datacenter. Defaults to "default".
+|eureka.environment | `+++test+++` | Eureka environment. Defaults to "test".
+|eureka.instance.a-s-g-name |  | Gets the AWS autoscaling group name associated with this instance. This information is specifically used in an AWS environment to automatically put an instance out of service after the instance is launched and it has been disabled for traffic..
+|eureka.instance.app-group-name |  | Get the name of the application group to be registered with eureka.
+|eureka.instance.appname | `+++unknown+++` | Get the name of the application to be registered with eureka.
+|eureka.instance.async-client-initialization | `+++false+++` | If true the EurekaClient will be initialized asynchronously when the InstanceRegistry bean is created.
+|eureka.instance.data-center-info |  | Returns the data center this instance is deployed. This information is used to get some AWS specific instance information if the instance is deployed in AWS.
+|eureka.instance.default-address-resolution-order | `+++[]+++` | 
+|eureka.instance.environment |  | 
+|eureka.instance.health-check-url |  | Gets the absolute health check page URL for this instance. The users can provide the healthCheckUrlPath if the health check page resides in the same instance talking to eureka, else in the cases where the instance is a proxy for some other server, users can provide the full URL. If the full URL is provided it takes precedence. <p> It is normally used for making educated decisions based on the health of the instance - for example, it can be used to determine whether to proceed deployments to an entire farm or stop the deployments without causing further damage. The full URL should follow the format http://${eureka.hostname}:7001/ where the value ${eureka.hostname} is replaced at runtime.
+|eureka.instance.health-check-url-path |  | Gets the relative health check URL path for this instance. The health check page URL is then constructed out of the hostname and the type of communication - secure or insecure as specified in securePort and nonSecurePort. It is normally used for making educated decisions based on the health of the instance - for example, it can be used to determine whether to proceed deployments to an entire farm or stop the deployments without causing further damage.
+|eureka.instance.home-page-url |  | Gets the absolute home page URL for this instance. The users can provide the homePageUrlPath if the home page resides in the same instance talking to eureka, else in the cases where the instance is a proxy for some other server, users can provide the full URL. If the full URL is provided it takes precedence. It is normally used for informational purposes for other services to use it as a landing page. The full URL should follow the format http://${eureka.hostname}:7001/ where the value ${eureka.hostname} is replaced at runtime.
+|eureka.instance.home-page-url-path | `+++/+++` | Gets the relative home page URL Path for this instance. The home page URL is then constructed out of the hostName and the type of communication - secure or insecure. It is normally used for informational purposes for other services to use it as a landing page.
+|eureka.instance.hostname |  | The hostname if it can be determined at configuration time (otherwise it will be guessed from OS primitives).
+|eureka.instance.initial-status | `+++up+++` | Initial status to register with remote Eureka server.
+|eureka.instance.instance-enabled-onit | `+++false+++` | Indicates whether the instance should be enabled for taking traffic as soon as it is registered with eureka. Sometimes the application might need to do some pre-processing before it is ready to take traffic.
+|eureka.instance.instance-id |  | Get the unique Id (within the scope of the appName) of this instance to be registered with eureka.
+|eureka.instance.ip-address |  | Get the IPAdress of the instance. This information is for academic purposes only as the communication from other instances primarily happen using the information supplied in {@link #getHostName(boolean)}.
+|eureka.instance.lease-expiration-duration-in-seconds | `+++90+++` | Indicates the time in seconds that the eureka server waits since it received the last heartbeat before it can remove this instance from its view and there by disallowing traffic to this instance. Setting this value too long could mean that the traffic could be routed to the instance even though the instance is not alive. Setting this value too small could mean, the instance may be taken out of traffic because of temporary network glitches.This value to be set to at least higher than the value specified in leaseRenewalIntervalInSeconds.
+|eureka.instance.lease-renewal-interval-in-seconds | `+++30+++` | Indicates how often (in seconds) the eureka client needs to send heartbeats to eureka server to indicate that it is still alive. If the heartbeats are not received for the period specified in leaseExpirationDurationInSeconds, eureka server will remove the instance from its view, there by disallowing traffic to this instance. Note that the instance could still not take traffic if it implements HealthCheckCallback and then decides to make itself unavailable.
+|eureka.instance.metadata-map |  | Gets the metadata name/value pairs associated with this instance. This information is sent to eureka server and can be used by other instances.
+|eureka.instance.metadata-map.weight | `+++1+++` | The weight of service instance for weighted load balancing.
+|eureka.instance.namespace | `+++eureka+++` | Get the namespace used to find properties. Ignored in Spring Cloud.
+|eureka.instance.non-secure-port | `+++80+++` | Get the non-secure port on which the instance should receive traffic.
+|eureka.instance.non-secure-port-enabled | `+++true+++` | Indicates whether the non-secure port should be enabled for traffic or not.
+|eureka.instance.prefer-ip-address | `+++false+++` | Flag to say that, when guessing a hostname, the IP address of the server should be used in preference to the hostname reported by the OS.
+|eureka.instance.registry.default-open-for-traffic-count | `+++1+++` | Value used in determining when leases are cancelled, default to 1 for standalone. Should be set to 0 for peer replicated eurekas
+|eureka.instance.registry.expected-number-of-clients-sending-renews | `+++1+++` | 
+|eureka.instance.secure-health-check-url |  | Gets the absolute secure health check page URL for this instance. The users can provide the secureHealthCheckUrl if the health check page resides in the same instance talking to eureka, else in the cases where the instance is a proxy for some other server, users can provide the full URL. If the full URL is provided it takes precedence. <p> It is normally used for making educated decisions based on the health of the instance - for example, it can be used to determine whether to proceed deployments to an entire farm or stop the deployments without causing further damage. The full URL should follow the format http://${eureka.hostname}:7001/ where the value ${eureka.hostname} is replaced at runtime.
+|eureka.instance.secure-port | `+++443+++` | Get the Secure port on which the instance should receive traffic.
+|eureka.instance.secure-port-enabled | `+++false+++` | Indicates whether the secure port should be enabled for traffic or not.
+|eureka.instance.secure-virtual-host-name | `+++unknown+++` | Gets the secure virtual host name defined for this instance. This is typically the way other instance would find this instance by using the secure virtual host name.Think of this as similar to the fully qualified domain name, that the users of your services will need to find this instance.
+|eureka.instance.status-page-url |  | Gets the absolute status page URL path for this instance. The users can provide the statusPageUrlPath if the status page resides in the same instance talking to eureka, else in the cases where the instance is a proxy for some other server, users can provide the full URL. If the full URL is provided it takes precedence. It is normally used for informational purposes for other services to find about the status of this instance. Users can provide a simple HTML indicating what is the current status of the instance.
+|eureka.instance.status-page-url-path |  | Gets the relative status page URL path for this instance. The status page URL is then constructed out of the hostName and the type of communication - secure or insecure as specified in securePort and nonSecurePort. It is normally used for informational purposes for other services to find about the status of this instance. Users can provide a simple HTML indicating what is the current status of the instance.
+|eureka.instance.virtual-host-name | `+++unknown+++` | Gets the virtual host name defined for this instance. This is typically the way other instance would find this instance by using the virtual host name.Think of this as similar to the fully qualified domain name, that the users of your services will need to find this instance.
+|eureka.server.a-s-g-cache-expiry-timeout-ms | `+++600000+++` | 
+|eureka.server.a-s-g-query-timeout-ms | `+++300+++` | 
+|eureka.server.a-s-g-update-interval-ms | `+++300000+++` | 
+|eureka.server.a-w-s-access-id |  | 
+|eureka.server.a-w-s-secret-key |  | 
+|eureka.server.batch-replication | `+++false+++` | 
+|eureka.server.binding-strategy | `+++eip+++` | 
+|eureka.server.delta-retention-timer-interval-in-ms | `+++30000+++` | 
+|eureka.server.disable-delta | `+++false+++` | 
+|eureka.server.disable-delta-for-remote-regions | `+++false+++` | 
+|eureka.server.disable-transparent-fallback-to-other-region | `+++false+++` | 
+|eureka.server.e-i-p-bind-rebind-retries | `+++3+++` | 
+|eureka.server.e-i-p-binding-retry-interval-ms | `+++300000+++` | 
+|eureka.server.e-i-p-binding-retry-interval-ms-when-unbound | `+++60000+++` | 
+|eureka.server.enable-replicated-request-compression | `+++false+++` | 
+|eureka.server.enable-self-preservation | `+++true+++` | 
+|eureka.server.eviction-interval-timer-in-ms |  | 
+|eureka.server.expected-client-renewal-interval-seconds | `+++30+++` | 
+|eureka.server.g-zip-content-from-remote-region | `+++true+++` | 
+|eureka.server.initial-capacity-of-response-cache | `+++1000+++` | 
+|eureka.server.json-codec-name |  | 
+|eureka.server.list-auto-scaling-groups-role-name | `+++ListAutoScalingGroups+++` | 
+|eureka.server.log-identity-headers | `+++true+++` | 
+|eureka.server.max-elements-in-peer-replication-pool | `+++10000+++` | 
+|eureka.server.max-elements-in-status-replication-pool | `+++10000+++` | 
+|eureka.server.max-idle-thread-age-in-minutes-for-peer-replication | `+++15+++` | 
+|eureka.server.max-idle-thread-in-minutes-age-for-status-replication | `+++10+++` | 
+|eureka.server.max-threads-for-peer-replication | `+++20+++` | 
+|eureka.server.max-threads-for-status-replication | `+++1+++` | 
+|eureka.server.max-time-for-replication | `+++30000+++` | 
+|eureka.server.metrics.enabled | `+++false+++` | Indicates whether the metrics should be enabled for eureka instances.
+|eureka.server.min-available-instances-for-peer-replication | `+++-1+++` | 
+|eureka.server.min-threads-for-peer-replication | `+++5+++` | 
+|eureka.server.min-threads-for-status-replication | `+++1+++` | 
+|eureka.server.my-url |  | 
+|eureka.server.number-of-replication-retries | `+++5+++` | 
+|eureka.server.peer-eureka-nodes-update-interval-ms | `+++600000+++` | 
+|eureka.server.peer-eureka-status-refresh-time-interval-ms |  | 
+|eureka.server.peer-node-connect-timeout-ms | `+++200+++` | 
+|eureka.server.peer-node-connection-idle-timeout-seconds | `+++30+++` | 
+|eureka.server.peer-node-read-timeout-ms | `+++200+++` | 
+|eureka.server.peer-node-total-connections | `+++1000+++` | 
+|eureka.server.peer-node-total-connections-per-host | `+++500+++` | 
+|eureka.server.prime-aws-replica-connections | `+++true+++` | 
+|eureka.server.property-resolver |  | 
+|eureka.server.rate-limiter-burst-size | `+++10+++` | 
+|eureka.server.rate-limiter-enabled | `+++false+++` | 
+|eureka.server.rate-limiter-full-fetch-average-rate | `+++100+++` | 
+|eureka.server.rate-limiter-privileged-clients |  | 
+|eureka.server.rate-limiter-registry-fetch-average-rate | `+++500+++` | 
+|eureka.server.rate-limiter-throttle-standard-clients | `+++false+++` | 
+|eureka.server.registry-sync-retries | `+++0+++` | 
+|eureka.server.registry-sync-retry-wait-ms |  | 
+|eureka.server.remote-region-app-whitelist |  | 
+|eureka.server.remote-region-connect-timeout-ms | `+++1000+++` | 
+|eureka.server.remote-region-connection-idle-timeout-seconds | `+++30+++` | 
+|eureka.server.remote-region-fetch-thread-pool-size | `+++20+++` | 
+|eureka.server.remote-region-read-timeout-ms | `+++1000+++` | 
+|eureka.server.remote-region-registry-fetch-interval | `+++30+++` | 
+|eureka.server.remote-region-total-connections | `+++1000+++` | 
+|eureka.server.remote-region-total-connections-per-host | `+++500+++` | 
+|eureka.server.remote-region-trust-store |  | 
+|eureka.server.remote-region-trust-store-password | `+++changeit+++` | 
+|eureka.server.remote-region-urls |  | 
+|eureka.server.remote-region-urls-with-name |  | 
+|eureka.server.renewal-percent-threshold | `+++0.85+++` | 
+|eureka.server.renewal-threshold-update-interval-ms | `+++900000+++` | 
+|eureka.server.response-cache-auto-expiration-in-seconds | `+++180+++` | 
+|eureka.server.response-cache-update-interval-ms | `+++30000+++` | 
+|eureka.server.retention-time-in-m-s-in-delta-queue | `+++180000+++` | 
+|eureka.server.route53-bind-rebind-retries | `+++3+++` | 
+|eureka.server.route53-binding-retry-interval-ms | `+++300000+++` | 
+|eureka.server.route53-domain-t-t-l | `+++30+++` | 
+|eureka.server.sync-when-timestamp-differs | `+++true+++` | 
+|eureka.server.use-read-only-response-cache | `+++true+++` | 
+|eureka.server.wait-time-in-ms-when-sync-empty | `+++300000+++` | 
+|eureka.server.xml-codec-name |  | 
+|spring.cloud.compatibility-verifier.compatible-boot-versions |  | Default accepted versions for the Spring Boot dependency. You can set {@code x} for the patch version if you don't want to specify a concrete value. Example: {@code 3.5.x}
+|spring.cloud.compatibility-verifier.enabled | `+++false+++` | Enables creation of Spring Cloud compatibility verification.
+|spring.cloud.config.allow-override | `+++true+++` | Flag to indicate that {@link #isOverrideSystemProperties() systemPropertiesOverride} can be used. Set to false to prevent users from changing the default accidentally. Default true.
+|spring.cloud.config.initialize-on-context-refresh | `+++false+++` | Flag to initialize bootstrap configuration on context refresh event. Default false.
+|spring.cloud.config.override-none | `+++false+++` | Flag to indicate that when {@link #setAllowOverride(boolean) allowOverride} is true, external properties should take lowest priority and should not override any existing property sources (including local config files). Default false. This will only have an effect when using config first bootstrap.
+|spring.cloud.config.override-system-properties | `+++true+++` | Flag to indicate that the external properties should override system properties. Default true.
+|spring.cloud.decrypt-environment-post-processor.enabled | `+++true+++` | Enable the DecryptEnvironmentPostProcessor.
+|spring.cloud.discovery.client.composite-indicator.enabled | `+++true+++` | Enables discovery client composite health indicator.
+|spring.cloud.discovery.client.health-indicator.enabled | `+++true+++` | 
+|spring.cloud.discovery.client.health-indicator.include-description | `+++false+++` | 
+|spring.cloud.discovery.client.health-indicator.use-services-query | `+++true+++` | Whether or not the indicator should use {@link DiscoveryClient#getServices} to check its health. When set to {@code false} the indicator instead uses the lighter {@link DiscoveryClient#probe()}. This can be helpful in large deployments where the number of services returned makes the operation unnecessarily heavy.
+|spring.cloud.discovery.client.simple.instances |  | 
+|spring.cloud.discovery.client.simple.local.host |  | 
+|spring.cloud.discovery.client.simple.local.instance-id |  | 
+|spring.cloud.discovery.client.simple.local.metadata |  | 
+|spring.cloud.discovery.client.simple.local.port | `+++0+++` | 
+|spring.cloud.discovery.client.simple.local.secure | `+++false+++` | 
+|spring.cloud.discovery.client.simple.local.service-id |  | 
+|spring.cloud.discovery.client.simple.local.uri |  | 
+|spring.cloud.discovery.client.simple.order |  | 
+|spring.cloud.discovery.enabled | `+++true+++` | Enables discovery client health indicators.
+|spring.cloud.features.enabled | `+++true+++` | Enables the features endpoint.
+|spring.cloud.httpclientfactories.apache.enabled | `+++true+++` | Enables creation of Apache Http Client factory beans.
+|spring.cloud.httpclientfactories.ok.enabled | `+++true+++` | Enables creation of OK Http Client factory beans.
+|spring.cloud.hypermedia.refresh.fixed-delay | `+++5000+++` | 
+|spring.cloud.hypermedia.refresh.initial-delay | `+++10000+++` | 
+|spring.cloud.inetutils.default-hostname | `+++localhost+++` | The default hostname. Used in case of errors.
+|spring.cloud.inetutils.default-ip-address | `+++127.0.0.1+++` | The default IP address. Used in case of errors.
+|spring.cloud.inetutils.ignored-interfaces |  | List of Java regular expressions for network interfaces that will be ignored.
+|spring.cloud.inetutils.preferred-networks |  | List of Java regular expressions for network addresses that will be preferred.
+|spring.cloud.inetutils.timeout-seconds | `+++1+++` | Timeout, in seconds, for calculating hostname.
+|spring.cloud.inetutils.use-only-site-local-interfaces | `+++false+++` | Whether to use only interfaces with site local addresses. See {@link InetAddress#isSiteLocalAddress()} for more details.
+|spring.cloud.loadbalancer.api-version.default |  | Sets default version that should be used for each request.
+|spring.cloud.loadbalancer.api-version.fallback-to-available-instances | `+++false+++` | Indicates whether all the available instances should be returned if no instances for the specified version are available.
+|spring.cloud.loadbalancer.api-version.header |  | Uses the HTTP header with the given name to obtain the version.
+|spring.cloud.loadbalancer.api-version.media-type-parameters |  | Uses the media type parameter with the given name to obtain the version.
+|spring.cloud.loadbalancer.api-version.path-segment |  | Uses the path segment at the given index to obtain the version.
+|spring.cloud.loadbalancer.api-version.query-parameter |  | Uses the query parameter with the given name to obtain the version.
+|spring.cloud.loadbalancer.api-version.required | `+++false+++` | Indicates whether the API version is required with each request.
+|spring.cloud.loadbalancer.cache.caffeine.spec |  | The spec to use to create caches. See CaffeineSpec for more details on the spec format.
+|spring.cloud.loadbalancer.cache.capacity | `+++256+++` | Initial cache capacity expressed as int.
+|spring.cloud.loadbalancer.cache.enabled | `+++true+++` | Enables Spring Cloud LoadBalancer caching mechanism.
+|spring.cloud.loadbalancer.cache.ttl | `+++35s+++` | Time To Live - time counted from writing of the record, after which cache entries are expired, expressed as a {@link Duration}. The property {@link String} has to be in keeping with the appropriate syntax as specified in Spring Boot <code>StringToDurationConverter</code>. @see <a href= "https://github.com/spring-projects/spring-boot/blob/master/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/convert/StringToDurationConverter.java">StringToDurationConverter.java</a>
+|spring.cloud.loadbalancer.call-get-with-request-on-delegates | `+++true+++` | If this flag is set to {@code true}, {@code ServiceInstanceListSupplier#get(Request request)} method will be implemented to call {@code delegate.get(request)} in classes assignable from {@code DelegatingServiceInstanceListSupplier} that don't already implement that method, with the exclusion of {@code CachingServiceInstanceListSupplier} and {@code HealthCheckServiceInstanceListSupplier}, which should be placed in the instance supplier hierarchy directly after the supplier performing instance retrieval over the network, before any request-based filtering is done, {@code true} by default.
+|spring.cloud.loadbalancer.clients |  | 
+|spring.cloud.loadbalancer.configurations | `+++default+++` | Enables a predefined LoadBalancer configuration.
+|spring.cloud.loadbalancer.eager-load.clients |  | Names of the clients.
+|spring.cloud.loadbalancer.enabled | `+++true+++` | Enables Spring Cloud LoadBalancer.
+|spring.cloud.loadbalancer.eureka.approximate-zone-from-hostname | `+++false+++` | Used to determine whether we should try to get the `zone` value from host name.
+|spring.cloud.loadbalancer.health-check.initial-delay | `+++0+++` | Initial delay value for the HealthCheck scheduler.
+|spring.cloud.loadbalancer.health-check.interval | `+++25s+++` | Interval for rerunning the HealthCheck scheduler.
+|spring.cloud.loadbalancer.health-check.path |  | Path at which the health-check request should be made. Can be set up per `serviceId`. A `default` value can be set up as well. If none is set up, `/actuator/health` will be used.
+|spring.cloud.loadbalancer.health-check.port |  | Path at which the health-check request should be made. If none is set, the port under which the requested service is available at the service instance.
+|spring.cloud.loadbalancer.health-check.refetch-instances | `+++false+++` | Indicates whether the instances should be refetched by the `HealthCheckServiceInstanceListSupplier`. This can be used if the instances can be updated and the underlying delegate does not provide an ongoing flux.
+|spring.cloud.loadbalancer.health-check.refetch-instances-interval | `+++25s+++` | Interval for refetching available service instances.
+|spring.cloud.loadbalancer.health-check.repeat-health-check | `+++true+++` | Indicates whether health checks should keep repeating. It might be useful to set it to `false` if periodically refetching the instances, as every refetch will also trigger a healthcheck.
+|spring.cloud.loadbalancer.health-check.update-results-list | `+++true+++` | Indicates whether the {@code healthCheckFlux} should emit on each alive {@link ServiceInstance} that has been retrieved. If set to {@code false}, the entire alive instances sequence is first collected into a list and only then emitted.
+|spring.cloud.loadbalancer.hint |  | Allows setting the value of <code>hint</code> that is passed on to the LoadBalancer request and can subsequently be used in {@link ReactiveLoadBalancer} implementations.
+|spring.cloud.loadbalancer.hint-header-name | `+++X-SC-LB-Hint+++` | Allows setting the name of the header used for passing the hint for hint-based service instance filtering.
+|spring.cloud.loadbalancer.retry.avoid-previous-instance | `+++true+++` | Enables wrapping ServiceInstanceListSupplier beans with `RetryAwareServiceInstanceListSupplier` if Spring-Retry is in the classpath.
+|spring.cloud.loadbalancer.retry.backoff.enabled | `+++false+++` | Indicates whether Reactor Retry backoffs should be applied.
+|spring.cloud.loadbalancer.retry.backoff.jitter | `+++0.5+++` | Used to set `RetryBackoffSpec.jitter`.
+|spring.cloud.loadbalancer.retry.backoff.max-backoff | `+++Long.MAX ms+++` | Used to set `RetryBackoffSpec.maxBackoff`.
+|spring.cloud.loadbalancer.retry.backoff.min-backoff | `+++5 ms+++` | Used to set `RetryBackoffSpec#minBackoff`.
+|spring.cloud.loadbalancer.retry.enabled | `+++true+++` | Enables LoadBalancer retries.
+|spring.cloud.loadbalancer.retry.max-retries-on-next-service-instance | `+++1+++` | Number of retries to be executed on the next `ServiceInstance`. A `ServiceInstance` is chosen before each retry call.
+|spring.cloud.loadbalancer.retry.max-retries-on-same-service-instance | `+++0+++` | Number of retries to be executed on the same `ServiceInstance`.
+|spring.cloud.loadbalancer.retry.retry-on-all-exceptions | `+++false+++` | Indicates retries should be attempted for all exceptions, not only those specified in `retryableExceptions`.
+|spring.cloud.loadbalancer.retry.retry-on-all-operations | `+++false+++` | Indicates retries should be attempted on operations other than `HttpMethod.GET`.
+|spring.cloud.loadbalancer.retry.retryable-exceptions | `+++{}+++` | A `Set` of `Throwable` classes that should trigger a retry.
+|spring.cloud.loadbalancer.retry.retryable-status-codes | `+++{}+++` | A `Set` of status codes that should trigger a retry.
+|spring.cloud.loadbalancer.service-discovery.timeout |  | String representation of Duration of the timeout for calls to service discovery.
+|spring.cloud.loadbalancer.stats.include-path | `+++true+++` | Indicates whether the {@code path} should be added to {@code uri} tag in metrics. When {@link RestTemplate} is used to execute load-balanced requests with high cardinality paths, setting it to {@code false} is recommended.
+|spring.cloud.loadbalancer.stats.micrometer.enabled | `+++false+++` | Enables Spring Cloud LoadBalancer Micrometer stats.
+|spring.cloud.loadbalancer.sticky-session.add-service-instance-cookie | `+++false+++` | Indicates whether a cookie with the newly selected instance should be added by LoadBalancer.
+|spring.cloud.loadbalancer.sticky-session.instance-id-cookie-name | `+++sc-lb-instance-id+++` | The name of the cookie holding the preferred instance id.
+|spring.cloud.loadbalancer.subset.instance-id |  | Instance id of deterministic subsetting. If not set, {@link IdUtils#getDefaultInstanceId(PropertyResolver)} will be used.
+|spring.cloud.loadbalancer.subset.size | `+++100+++` | Max subset size of deterministic subsetting.
+|spring.cloud.loadbalancer.x-forwarded.enabled | `+++false+++` | To Enable X-Forwarded Headers.
+|spring.cloud.loadbalancer.zone |  | Spring Cloud LoadBalancer zone.
+|spring.cloud.refresh.additional-property-sources-to-retain |  | Additional property sources to retain during a refresh. Typically only system property sources are retained. This property allows property sources, such as property sources created by EnvironmentPostProcessors to be retained as well.
+|spring.cloud.refresh.enabled | `+++true+++` | Enables autoconfiguration for the refresh scope and associated features.
+|spring.cloud.refresh.extra-refreshable | `+++true+++` | Additional bean names or class names for beans to post process into refresh scope.
+|spring.cloud.refresh.never-refreshable | `+++true+++` | Comma separated list of bean names or class names for beans to never be refreshed or rebound.
+|spring.cloud.refresh.never-reset-nested-types |  | Fully qualified class name prefixes of nested configuration properties values that should never be recursively reset when a bean is rebound. JDK and standard API types are always skipped; use this to additionally exclude library types whose object graphs are cyclic or hold internal state that must not be mutated. Each entry is matched against the fully qualified class name using a prefix comparison, so either a package or an individual class name can be supplied.
+|spring.cloud.refresh.on-restart.enabled | `+++true+++` | Enable refreshing context on start.
+|spring.cloud.service-registry.auto-registration.enabled | `+++true+++` | Whether service auto-registration is enabled. Defaults to true.
+|spring.cloud.service-registry.auto-registration.fail-fast | `+++false+++` | Whether startup fails if there is no AutoServiceRegistration. Defaults to false.
+|spring.cloud.service-registry.auto-registration.register-management | `+++true+++` | Whether to register the management as a service. Defaults to true.
+|spring.cloud.util.enabled | `+++true+++` | Enables creation of Spring Cloud utility beans.
+
+|===

docs/package.json

@@ -0,0 +1,10 @@
+{
+  "dependencies": {
+    "antora": "3.2.0",
+    "@antora/atlas-extension": "1.0.0-alpha.5",
+    "@antora/collector-extension": "1.0.3",
+    "@asciidoctor/tabs": "1.0.0-beta.6",
+    "@springio/antora-extensions": "1.14.13",
+    "@springio/asciidoctor-extensions": "1.0.0-alpha.18"
+  }
+}

docs/pom.xml

@@ -1,64 +1,84 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+		 xmlns="http://maven.apache.org/POM/4.0.0"
+		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
+	<groupId>org.springframework.cloud</groupId>
+	<artifactId>spring-cloud-netflix-docs</artifactId>
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-netflix</artifactId>
-		<version>3.0.3</version>
+		<version>5.1.0-SNAPSHOT</version>
+		<relativePath>..</relativePath>
 	</parent>
-	<artifactId>spring-cloud-netflix-docs</artifactId>
 	<packaging>jar</packaging>
 	<name>Spring Cloud Netflix Docs</name>
-	<description>Spring Cloud Docs</description>
+	<description>Spring Cloud Netflix Docs</description>
 	<properties>
 		<docs.main>spring-cloud-netflix</docs.main>
 		<main.basedir>${basedir}/..</main.basedir>
-		<configprops.inclusionPattern>
-			.*.eureka.*
-		</configprops.inclusionPattern>
-		<upload-docs-zip.phase>deploy</upload-docs-zip.phase>
+		<configprops.inclusionPattern>eureka.*|spring.cloud.*</configprops.inclusionPattern>
+		<!-- Don't upload docs jar to central / repo.spring.io -->
+		<maven-deploy-plugin-default.phase>none</maven-deploy-plugin-default.phase>
 	</properties>
-	<dependencies>
-		<dependency>
-			<groupId>${project.groupId}</groupId>
-			<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>${project.groupId}</groupId>
-			<artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
-		</dependency>
-	</dependencies>
 	<build>
 		<sourceDirectory>src/main/asciidoc</sourceDirectory>
 	</build>
 	<profiles>
+		<profile>
+			<id>enable-configuration-properties</id>
+			<activation>
+				<property>
+					<name>!disableConfigurationProperties</name>
+				</property>
+			</activation>
+			<dependencies>
+				<dependency>
+					<groupId>${project.groupId}</groupId>
+					<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
+				</dependency>
+				<dependency>
+					<groupId>${project.groupId}</groupId>
+					<artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
+				</dependency>
+			</dependencies>
+		</profile>
 		<profile>
 			<id>docs</id>
 			<build>
+				<resources>
+					<resource>
+						<directory>src/main/antora/resources/antora-resources</directory>
+						<filtering>true</filtering>
+					</resource>
+				</resources>
 				<plugins>
 					<plugin>
 						<groupId>pl.project13.maven</groupId>
 						<artifactId>git-commit-id-plugin</artifactId>
 					</plugin>
 					<plugin>
+						<groupId>org.apache.maven.plugins</groupId>
 						<artifactId>maven-dependency-plugin</artifactId>
 					</plugin>
-					<plugin>
-						<artifactId>maven-resources-plugin</artifactId>
-					</plugin>
 					<plugin>
 						<groupId>org.codehaus.mojo</groupId>
 						<artifactId>exec-maven-plugin</artifactId>
 					</plugin>
 					<plugin>
-						<groupId>org.asciidoctor</groupId>
-						<artifactId>asciidoctor-maven-plugin</artifactId>
+						<groupId>io.spring.maven.antora</groupId>
+						<artifactId>antora-component-version-maven-plugin</artifactId>
 					</plugin>
 					<plugin>
+						<groupId>org.antora</groupId>
+						<artifactId>antora-maven-plugin</artifactId>
+					</plugin>
+					<plugin>
+						<groupId>org.apache.maven.plugins</groupId>
 						<artifactId>maven-antrun-plugin</artifactId>
 					</plugin>
 					<plugin>
+						<groupId>org.apache.maven.plugins</groupId>
 						<artifactId>maven-deploy-plugin</artifactId>
 					</plugin>
 				</plugins>

docs/src/main/antora/resources/antora-resources/antora.yml

@@ -0,0 +1,20 @@
+version: @antora-component.version@
+prerelease: @antora-component.prerelease@
+
+asciidoc:
+  attributes:
+    attribute-missing: 'warn'
+    chomp: 'all'
+    project-root: @maven.multiModuleProjectDirectory@
+    github-repo: @docs.main@
+    github-raw: https://raw.githubusercontent.com/spring-cloud/@docs.main@/@github-tag@
+    github-code: https://github.com/spring-cloud/@docs.main@/tree/@github-tag@
+    github-issues: https://github.com/spring-cloud/@docs.main@/issues/
+    github-wiki: https://github.com/spring-cloud/@docs.main@/wiki
+    spring-cloud-version: @project.version@
+    github-tag: @github-tag@
+    version-type: @version-type@
+    docs-url: https://docs.spring.io/@docs.main@/docs/@project.version@
+    raw-docs-url: https://raw.githubusercontent.com/spring-cloud/@docs.main@/@github-tag@
+    project-version: @project.version@
+    project-name: @docs.main@

docs/src/main/asciidoc/README.adoc

@@ -1,29 +1,30 @@
-include::_attributes.adoc[]
 
-image::https://circleci.com/gh/spring-cloud/spring-cloud-netflix/tree/main.svg?style=svg["CircleCI", link="https://circleci.com/gh/spring-cloud/spring-cloud-netflix/tree/main"]
-image::https://codecov.io/gh/spring-cloud/spring-cloud-netflix/branch/main/graph/badge.svg["Codecov", link="https://codecov.io/gh/spring-cloud/spring-cloud-netflix/branch/main"]
-image::https://api.codacy.com/project/badge/Grade/a6885a06921e4f72a0df0b7aabd6d118["Codacy code quality", link="https://www.codacy.com/app/Spring-Cloud/spring-cloud-netflix?utm_source=github.com&utm_medium=referral&utm_content=spring-cloud/spring-cloud-netflix&utm_campaign=Badge_Grade"]
+image::https://github.com/spring-cloud/spring-cloud-netflix/actions/workflows/maven.yml/badge.svg?branch=main&style=svg["Build",link="https://github.com/spring-cloud/spring-cloud-netflix/actions/workflows/maven.yml"]
+
+image:https://codecov.io/gh/spring-cloud/spring-cloud-netflix/branch/main/graph/badge.svg["Codecov", link="https://app.codecov.io/gh/spring-cloud/spring-cloud-netflix/tree/main"]
 
 
-include::intro.adoc[]
-
+[[features]]
 == Features
 
 * Service Discovery: Eureka instances can be registered and clients can discover the instances using Spring-managed beans
 * Service Discovery: an embedded Eureka server can be created with declarative Java configuration
 
 
+[[building]]
 == Building
 
-include::https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/main/docs/src/main/asciidoc/building-jdk8.adoc[]
+include::https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/main/docs/modules/ROOT/partials/building.adoc[]
 
 NOTE:  To build the module `spring-cloud-netflix-hystrix-contract` along with the entire Netflix project run the
 `build.sh` script in the `scripts` directory.
 
+[[contributing]]
 == Contributing
 
-include::https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/main/docs/src/main/asciidoc/contributing.adoc[]
+include::https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/main/docs/modules/ROOT/partials/contributing-docs.adoc[]
 
+[[license]]
 == License
 
-The project license file is available https://raw.githubusercontent.com/spring-cloud/spring-cloud-netflix/main/LICENSE.txt[here].
+The project license file is available https://raw.githubusercontent.com/spring-cloud/spring-cloud-netflix/main/LICENSE.txt[here].

docs/src/main/asciidoc/_configprops.adoc

@@ -1,20 +0,0 @@
-|===
-|Name | Default | Description
-
-|eureka.client.eureka-connection-idle-timeout-seconds | `30` | Indicates how much time (in seconds) that the HTTP connections to eureka server can stay idle before it can be closed. In the AWS environment, it is recommended that the values is 30 seconds or less, since the firewall cleans up the connection information after a few mins leaving the connection hanging in limbo.
-|eureka.client.eureka-server-connect-timeout-seconds | `5` | Indicates how long to wait (in seconds) before a connection to eureka server needs to timeout. Note that the connections in the client are pooled by org.apache.http.client.HttpClient and this setting affects the actual connection creation and also the wait time to get the connection from the pool.
-|eureka.client.eureka-server-d-n-s-name |  | Gets the DNS name to be queried to get the list of eureka servers.This information is not required if the contract returns the service urls by implementing serviceUrls. The DNS mechanism is used when useDnsForFetchingServiceUrls is set to true and the eureka client expects the DNS to configured a certain way so that it can fetch changing eureka servers dynamically. The changes are effective at runtime.
-|eureka.client.eureka-server-port |  | Gets the port to be used to construct the service url to contact eureka server when the list of eureka servers come from the DNS.This information is not required if the contract returns the service urls eurekaServerServiceUrls(String). The DNS mechanism is used when useDnsForFetchingServiceUrls is set to true and the eureka client expects the DNS to configured a certain way so that it can fetch changing eureka servers dynamically. The changes are effective at runtime.
-|eureka.client.eureka-server-read-timeout-seconds | `8` | Indicates how long to wait (in seconds) before a read from eureka server needs to timeout.
-|eureka.client.eureka-server-total-connections | `200` | Gets the total number of connections that is allowed from eureka client to all eureka servers.
-|eureka.client.eureka-server-total-connections-per-host | `50` | Gets the total number of connections that is allowed from eureka client to a eureka server host.
-|eureka.client.eureka-server-u-r-l-context |  | Gets the URL context to be used to construct the service url to contact eureka server when the list of eureka servers come from the DNS. This information is not required if the contract returns the service urls from eurekaServerServiceUrls. The DNS mechanism is used when useDnsForFetchingServiceUrls is set to true and the eureka client expects the DNS to configured a certain way so that it can fetch changing eureka servers dynamically. The changes are effective at runtime.
-|eureka.client.eureka-service-url-poll-interval-seconds | `0` | Indicates how often(in seconds) to poll for changes to eureka server information. Eureka servers could be added or removed and this setting controls how soon the eureka clients should know about it.
-|eureka.client.prefer-same-zone-eureka | `true` | Indicates whether or not this instance should try to use the eureka server in the same zone for latency and/or other reason. Ideally eureka clients are configured to talk to servers in the same zone The changes are effective at runtime at the next registry fetch cycle as specified by registryFetchIntervalSeconds
-|eureka.client.register-with-eureka | `true` | Indicates whether or not this instance should register its information with eureka server for discovery by others. In some cases, you do not want your instances to be discovered whereas you just want do discover other instances.
-|eureka.server.peer-eureka-nodes-update-interval-ms | `0` | 
-|eureka.server.peer-eureka-status-refresh-time-interval-ms | `0` | 
-|ribbon.eureka.enabled | `true` | Enables the use of Eureka with Ribbon.
-|spring.cloud.loadbalancer.eureka.approximate-zone-from-hostname | `false` | Used to determine whether we should try to get the `zone` value from host name.
-
-|===

docs/src/main/asciidoc/index.adoc

@@ -1 +0,0 @@
-spring-cloud-netflix.adoc

docs/src/main/asciidoc/sagan-index.adoc

@@ -10,13 +10,12 @@ Spring Cloud Netflix features:
 ## Getting Started
 
 As long as Spring Cloud Netflix and Eureka Core are on the
-classpath any Spring Boot application with `@EnableEurekaClient` will try to contact a Eureka
+classpath any Spring Boot application with `spring-cloud-starter-netflix-eureka-client` in dependencies will try to contact a Eureka
 server on `http://localhost:8761` (the default value of
 `eureka.client.serviceUrl.defaultZone`):
 
 ```java
 @SpringBootApplication
-@EnableEurekaClient
 @RestController
 public class Application {
 

mvnw

@@ -8,7 +8,7 @@
 # "License"); you may not use this file except in compliance
 # with the License.  You may obtain a copy of the License at
 #
-#    https://www.apache.org/licenses/LICENSE-2.0
+#    http://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing,
 # software distributed under the License is distributed on an
@@ -19,7 +19,7 @@
 # ----------------------------------------------------------------------------
 
 # ----------------------------------------------------------------------------
-# Maven2 Start Up Batch script
+# Apache Maven Wrapper startup batch script, version 3.3.4
 #
 # Required ENV vars:
 # ------------------
@@ -27,280 +27,312 @@
 #
 # Optional ENV vars
 # -----------------
-#   M2_HOME - location of maven2's installed home dir
 #   MAVEN_OPTS - parameters passed to the Java VM when running Maven
 #     e.g. to debug Maven itself, use
 #       set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000
 #   MAVEN_SKIP_RC - flag to disable loading of mavenrc files
 # ----------------------------------------------------------------------------
 
-if [ -z "$MAVEN_SKIP_RC" ] ; then
+if [ -z "$MAVEN_SKIP_RC" ]; then
 
-  if [ -f /etc/mavenrc ] ; then
+  if [ -f /usr/local/etc/mavenrc ]; then
+    . /usr/local/etc/mavenrc
+  fi
+
+  if [ -f /etc/mavenrc ]; then
     . /etc/mavenrc
   fi
 
-  if [ -f "$HOME/.mavenrc" ] ; then
+  if [ -f "$HOME/.mavenrc" ]; then
     . "$HOME/.mavenrc"
   fi
 
 fi
 
 # OS specific support.  $var _must_ be set to either true or false.
-cygwin=false;
-darwin=false;
+cygwin=false
+darwin=false
 mingw=false
-case "`uname`" in
-  CYGWIN*) cygwin=true ;;
-  MINGW*) mingw=true;;
-  Darwin*) darwin=true
-    # Use /usr/libexec/java_home if available, otherwise fall back to /Library/Java/Home
-    # See https://developer.apple.com/library/mac/qa/qa1170/_index.html
-    if [ -z "$JAVA_HOME" ]; then
-      if [ -x "/usr/libexec/java_home" ]; then
-        export JAVA_HOME="`/usr/libexec/java_home`"
-      else
-        export JAVA_HOME="/Library/Java/Home"
-      fi
+case "$(uname)" in
+CYGWIN*) cygwin=true ;;
+MINGW*) mingw=true ;;
+Darwin*)
+  darwin=true
+  # Use /usr/libexec/java_home if available, otherwise fall back to /Library/Java/Home
+  # See https://developer.apple.com/library/mac/qa/qa1170/_index.html
+  if [ -z "$JAVA_HOME" ]; then
+    if [ -x "/usr/libexec/java_home" ]; then
+      JAVA_HOME="$(/usr/libexec/java_home)"
+      export JAVA_HOME
+    else
+      JAVA_HOME="/Library/Java/Home"
+      export JAVA_HOME
     fi
-    ;;
+  fi
+  ;;
 esac
 
-if [ -z "$JAVA_HOME" ] ; then
-  if [ -r /etc/gentoo-release ] ; then
-    JAVA_HOME=`java-config --jre-home`
+if [ -z "$JAVA_HOME" ]; then
+  if [ -r /etc/gentoo-release ]; then
+    JAVA_HOME=$(java-config --jre-home)
   fi
 fi
 
-if [ -z "$M2_HOME" ] ; then
-  ## resolve links - $0 may be a link to maven's home
-  PRG="$0"
-
-  # need this for relative symlinks
-  while [ -h "$PRG" ] ; do
-    ls=`ls -ld "$PRG"`
-    link=`expr "$ls" : '.*-> \(.*\)$'`
-    if expr "$link" : '/.*' > /dev/null; then
-      PRG="$link"
-    else
-      PRG="`dirname "$PRG"`/$link"
-    fi
-  done
-
-  saveddir=`pwd`
-
-  M2_HOME=`dirname "$PRG"`/..
-
-  # make it fully qualified
-  M2_HOME=`cd "$M2_HOME" && pwd`
-
-  cd "$saveddir"
-  # echo Using m2 at $M2_HOME
-fi
-
 # For Cygwin, ensure paths are in UNIX format before anything is touched
-if $cygwin ; then
-  [ -n "$M2_HOME" ] &&
-    M2_HOME=`cygpath --unix "$M2_HOME"`
-  [ -n "$JAVA_HOME" ] &&
-    JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
-  [ -n "$CLASSPATH" ] &&
-    CLASSPATH=`cygpath --path --unix "$CLASSPATH"`
+if $cygwin; then
+  [ -n "$JAVA_HOME" ] \
+    && JAVA_HOME=$(cygpath --unix "$JAVA_HOME")
+  [ -n "$CLASSPATH" ] \
+    && CLASSPATH=$(cygpath --path --unix "$CLASSPATH")
 fi
 
 # For Mingw, ensure paths are in UNIX format before anything is touched
-if $mingw ; then
-  [ -n "$M2_HOME" ] &&
-    M2_HOME="`(cd "$M2_HOME"; pwd)`"
-  [ -n "$JAVA_HOME" ] &&
-    JAVA_HOME="`(cd "$JAVA_HOME"; pwd)`"
-  # TODO classpath?
+if $mingw; then
+  [ -n "$JAVA_HOME" ] && [ -d "$JAVA_HOME" ] \
+    && JAVA_HOME="$(
+      cd "$JAVA_HOME" || (
+        echo "cannot cd into $JAVA_HOME." >&2
+        exit 1
+      )
+      pwd
+    )"
 fi
 
 if [ -z "$JAVA_HOME" ]; then
-  javaExecutable="`which javac`"
-  if [ -n "$javaExecutable" ] && ! [ "`expr \"$javaExecutable\" : '\([^ ]*\)'`" = "no" ]; then
+  javaExecutable="$(which javac)"
+  if [ -n "$javaExecutable" ] && ! [ "$(expr "$javaExecutable" : '\([^ ]*\)')" = "no" ]; then
     # readlink(1) is not available as standard on Solaris 10.
-    readLink=`which readlink`
-    if [ ! `expr "$readLink" : '\([^ ]*\)'` = "no" ]; then
-      if $darwin ; then
-        javaHome="`dirname \"$javaExecutable\"`"
-        javaExecutable="`cd \"$javaHome\" && pwd -P`/javac"
+    readLink=$(which readlink)
+    if [ ! "$(expr "$readLink" : '\([^ ]*\)')" = "no" ]; then
+      if $darwin; then
+        javaHome="$(dirname "$javaExecutable")"
+        javaExecutable="$(cd "$javaHome" && pwd -P)/javac"
       else
-        javaExecutable="`readlink -f \"$javaExecutable\"`"
+        javaExecutable="$(readlink -f "$javaExecutable")"
       fi
-      javaHome="`dirname \"$javaExecutable\"`"
-      javaHome=`expr "$javaHome" : '\(.*\)/bin'`
+      javaHome="$(dirname "$javaExecutable")"
+      javaHome=$(expr "$javaHome" : '\(.*\)/bin')
       JAVA_HOME="$javaHome"
       export JAVA_HOME
     fi
   fi
 fi
 
-if [ -z "$JAVACMD" ] ; then
-  if [ -n "$JAVA_HOME"  ] ; then
-    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+if [ -z "$JAVACMD" ]; then
+  if [ -n "$JAVA_HOME" ]; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ]; then
       # IBM's JDK on AIX uses strange locations for the executables
       JAVACMD="$JAVA_HOME/jre/sh/java"
     else
       JAVACMD="$JAVA_HOME/bin/java"
     fi
   else
-    JAVACMD="`which java`"
+    JAVACMD="$(
+      \unset -f command 2>/dev/null
+      \command -v java
+    )"
   fi
 fi
 
-if [ ! -x "$JAVACMD" ] ; then
+if [ ! -x "$JAVACMD" ]; then
   echo "Error: JAVA_HOME is not defined correctly." >&2
   echo "  We cannot execute $JAVACMD" >&2
   exit 1
 fi
 
-if [ -z "$JAVA_HOME" ] ; then
-  echo "Warning: JAVA_HOME environment variable is not set."
+if [ -z "$JAVA_HOME" ]; then
+  echo "Warning: JAVA_HOME environment variable is not set." >&2
 fi
 
-CLASSWORLDS_LAUNCHER=org.codehaus.plexus.classworlds.launcher.Launcher
-
 # traverses directory structure from process work directory to filesystem root
 # first directory with .mvn subdirectory is considered project base directory
 find_maven_basedir() {
-
-  if [ -z "$1" ]
-  then
-    echo "Path not specified to find_maven_basedir"
+  if [ -z "$1" ]; then
+    echo "Path not specified to find_maven_basedir" >&2
     return 1
   fi
 
   basedir="$1"
   wdir="$1"
-  while [ "$wdir" != '/' ] ; do
-    if [ -d "$wdir"/.mvn ] ; then
+  while [ "$wdir" != '/' ]; do
+    if [ -d "$wdir"/.mvn ]; then
       basedir=$wdir
       break
     fi
     # workaround for JBEAP-8937 (on Solaris 10/Sparc)
     if [ -d "${wdir}" ]; then
-      wdir=`cd "$wdir/.."; pwd`
+      wdir=$(
+        cd "$wdir/.." || exit 1
+        pwd
+      )
     fi
     # end of workaround
   done
-  echo "${basedir}"
+  printf '%s' "$(
+    cd "$basedir" || exit 1
+    pwd
+  )"
 }
 
 # concatenates all lines of a file
 concat_lines() {
   if [ -f "$1" ]; then
-    echo "$(tr -s '\n' ' ' < "$1")"
+    # Remove \r in case we run on Windows within Git Bash
+    # and check out the repository with auto CRLF management
+    # enabled. Otherwise, we may read lines that are delimited with
+    # \r\n and produce $'-Xarg\r' rather than -Xarg due to word
+    # splitting rules.
+    tr -s '\r\n' ' ' <"$1"
   fi
 }
 
-BASE_DIR=`find_maven_basedir "$(pwd)"`
+log() {
+  if [ "$MVNW_VERBOSE" = true ]; then
+    printf '%s\n' "$1"
+  fi
+}
+
+BASE_DIR=$(find_maven_basedir "$(dirname "$0")")
 if [ -z "$BASE_DIR" ]; then
-  exit 1;
+  exit 1
 fi
 
+MAVEN_PROJECTBASEDIR=${MAVEN_BASEDIR:-"$BASE_DIR"}
+export MAVEN_PROJECTBASEDIR
+log "$MAVEN_PROJECTBASEDIR"
+
+trim() {
+  # MWRAPPER-139:
+  #   Trims trailing and leading whitespace, carriage returns, tabs, and linefeeds.
+  #   Needed for removing poorly interpreted newline sequences when running in more
+  #   exotic environments such as mingw bash on Windows.
+  printf "%s" "${1}" | tr -d '[:space:]'
+}
+
 ##########################################################################################
 # Extension to allow automatically downloading the maven-wrapper.jar from Maven-central
 # This allows using the maven wrapper in projects that prohibit checking in binary data.
 ##########################################################################################
-if [ -r "$BASE_DIR/.mvn/wrapper/maven-wrapper.jar" ]; then
-    if [ "$MVNW_VERBOSE" = true ]; then
-      echo "Found .mvn/wrapper/maven-wrapper.jar"
-    fi
+wrapperJarPath="$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar"
+if [ -r "$wrapperJarPath" ]; then
+  log "Found $wrapperJarPath"
 else
-    if [ "$MVNW_VERBOSE" = true ]; then
-      echo "Couldn't find .mvn/wrapper/maven-wrapper.jar, downloading it ..."
-    fi
-    jarUrl="https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.4.0/maven-wrapper-0.4.0.jar"
-    while IFS="=" read key value; do
-      case "$key" in (wrapperUrl) jarUrl="$value"; break ;;
-      esac
-    done < "$BASE_DIR/.mvn/wrapper/maven-wrapper.properties"
-    if [ "$MVNW_VERBOSE" = true ]; then
-      echo "Downloading from: $jarUrl"
-    fi
-    wrapperJarPath="$BASE_DIR/.mvn/wrapper/maven-wrapper.jar"
+  log "Couldn't find $wrapperJarPath, downloading it ..."
 
-    if command -v wget > /dev/null; then
-        if [ "$MVNW_VERBOSE" = true ]; then
-          echo "Found wget ... using wget"
-        fi
-        wget "$jarUrl" -O "$wrapperJarPath"
-    elif command -v curl > /dev/null; then
-        if [ "$MVNW_VERBOSE" = true ]; then
-          echo "Found curl ... using curl"
-        fi
-        curl -o "$wrapperJarPath" "$jarUrl"
+  if [ -n "$MVNW_REPOURL" ]; then
+    wrapperUrl="$MVNW_REPOURL/org/apache/maven/wrapper/maven-wrapper/3.3.4/maven-wrapper-3.3.4.jar"
+  else
+    wrapperUrl="https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.3.4/maven-wrapper-3.3.4.jar"
+  fi
+  while IFS="=" read -r key value; do
+    case "$key" in wrapperUrl)
+      wrapperUrl=$(trim "${value-}")
+      break
+      ;;
+    esac
+  done <"$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.properties"
+  log "Downloading from: $wrapperUrl"
+
+  if $cygwin; then
+    wrapperJarPath=$(cygpath --path --windows "$wrapperJarPath")
+  fi
+
+  if command -v wget >/dev/null; then
+    log "Found wget ... using wget"
+    [ "$MVNW_VERBOSE" = true ] && QUIET="" || QUIET="--quiet"
+    if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
+      wget ${QUIET:+"$QUIET"} "$wrapperUrl" -O "$wrapperJarPath" || rm -f "$wrapperJarPath"
     else
-        if [ "$MVNW_VERBOSE" = true ]; then
-          echo "Falling back to using Java to download"
-        fi
-        javaClass="$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.java"
-        if [ -e "$javaClass" ]; then
-            if [ ! -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then
-                if [ "$MVNW_VERBOSE" = true ]; then
-                  echo " - Compiling MavenWrapperDownloader.java ..."
-                fi
-                # Compiling the Java class
-                ("$JAVA_HOME/bin/javac" "$javaClass")
-            fi
-            if [ -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then
-                # Running the downloader
-                if [ "$MVNW_VERBOSE" = true ]; then
-                  echo " - Running MavenWrapperDownloader.java ..."
-                fi
-                ("$JAVA_HOME/bin/java" -cp .mvn/wrapper MavenWrapperDownloader "$MAVEN_PROJECTBASEDIR")
-            fi
-        fi
+      wget ${QUIET:+"$QUIET"} --http-user="$MVNW_USERNAME" --http-password="$MVNW_PASSWORD" "$wrapperUrl" -O "$wrapperJarPath" || rm -f "$wrapperJarPath"
     fi
+  elif command -v curl >/dev/null; then
+    log "Found curl ... using curl"
+    [ "$MVNW_VERBOSE" = true ] && QUIET="" || QUIET="--silent"
+    if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
+      curl ${QUIET:+"$QUIET"} -o "$wrapperJarPath" "$wrapperUrl" -f -L || rm -f "$wrapperJarPath"
+    else
+      curl ${QUIET:+"$QUIET"} --user "$MVNW_USERNAME:$MVNW_PASSWORD" -o "$wrapperJarPath" "$wrapperUrl" -f -L || rm -f "$wrapperJarPath"
+    fi
+  else
+    log "Falling back to using Java to download"
+    javaSource="$MAVEN_PROJECTBASEDIR/.mvn/wrapper/MavenWrapperDownloader.java"
+    javaClass="$MAVEN_PROJECTBASEDIR/.mvn/wrapper/MavenWrapperDownloader.class"
+    # For Cygwin, switch paths to Windows format before running javac
+    if $cygwin; then
+      javaSource=$(cygpath --path --windows "$javaSource")
+      javaClass=$(cygpath --path --windows "$javaClass")
+    fi
+    if [ -e "$javaSource" ]; then
+      if [ ! -e "$javaClass" ]; then
+        log " - Compiling MavenWrapperDownloader.java ..."
+        ("$JAVA_HOME/bin/javac" "$javaSource")
+      fi
+      if [ -e "$javaClass" ]; then
+        log " - Running MavenWrapperDownloader.java ..."
+        ("$JAVA_HOME/bin/java" -cp .mvn/wrapper MavenWrapperDownloader "$wrapperUrl" "$wrapperJarPath") || rm -f "$wrapperJarPath"
+      fi
+    fi
+  fi
 fi
 ##########################################################################################
 # End of extension
 ##########################################################################################
 
-export MAVEN_PROJECTBASEDIR=${MAVEN_BASEDIR:-"$BASE_DIR"}
-if [ "$MVNW_VERBOSE" = true ]; then
-  echo $MAVEN_PROJECTBASEDIR
+# If specified, validate the SHA-256 sum of the Maven wrapper jar file
+wrapperSha256Sum=""
+while IFS="=" read -r key value; do
+  case "$key" in wrapperSha256Sum)
+    wrapperSha256Sum=$(trim "${value-}")
+    break
+    ;;
+  esac
+done <"$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.properties"
+if [ -n "$wrapperSha256Sum" ]; then
+  wrapperSha256Result=false
+  if command -v sha256sum >/dev/null; then
+    if echo "$wrapperSha256Sum  $wrapperJarPath" | sha256sum -c - >/dev/null 2>&1; then
+      wrapperSha256Result=true
+    fi
+  elif command -v shasum >/dev/null; then
+    if echo "$wrapperSha256Sum  $wrapperJarPath" | shasum -a 256 -c >/dev/null 2>&1; then
+      wrapperSha256Result=true
+    fi
+  else
+    echo "Checksum validation was requested but neither 'sha256sum' or 'shasum' are available." >&2
+    echo "Please install either command, or disable validation by removing 'wrapperSha256Sum' from your maven-wrapper.properties." >&2
+    exit 1
+  fi
+  if [ $wrapperSha256Result = false ]; then
+    echo "Error: Failed to validate Maven wrapper SHA-256, your Maven wrapper might be compromised." >&2
+    echo "Investigate or delete $wrapperJarPath to attempt a clean download." >&2
+    echo "If you updated your Maven version, you need to update the specified wrapperSha256Sum property." >&2
+    exit 1
+  fi
 fi
+
 MAVEN_OPTS="$(concat_lines "$MAVEN_PROJECTBASEDIR/.mvn/jvm.config") $MAVEN_OPTS"
 
 # For Cygwin, switch paths to Windows format before running java
 if $cygwin; then
-  [ -n "$M2_HOME" ] &&
-    M2_HOME=`cygpath --path --windows "$M2_HOME"`
-  [ -n "$JAVA_HOME" ] &&
-    JAVA_HOME=`cygpath --path --windows "$JAVA_HOME"`
-  [ -n "$CLASSPATH" ] &&
-    CLASSPATH=`cygpath --path --windows "$CLASSPATH"`
-  [ -n "$MAVEN_PROJECTBASEDIR" ] &&
-    MAVEN_PROJECTBASEDIR=`cygpath --path --windows "$MAVEN_PROJECTBASEDIR"`
+  [ -n "$JAVA_HOME" ] \
+    && JAVA_HOME=$(cygpath --path --windows "$JAVA_HOME")
+  [ -n "$CLASSPATH" ] \
+    && CLASSPATH=$(cygpath --path --windows "$CLASSPATH")
+  [ -n "$MAVEN_PROJECTBASEDIR" ] \
+    && MAVEN_PROJECTBASEDIR=$(cygpath --path --windows "$MAVEN_PROJECTBASEDIR")
 fi
 
+# Provide a "standardized" way to retrieve the CLI args that will
+# work with both Windows and non-Windows executions.
+MAVEN_CMD_LINE_ARGS="$MAVEN_CONFIG $*"
+export MAVEN_CMD_LINE_ARGS
+
 WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
 
-echo "Running version check"
-VERSION=$( sed '\!<parent!,\!</parent!d' `dirname $0`/pom.xml | grep '<version' | head -1 | sed -e 's/.*<version>//' -e 's!</version>.*$!!' )
-echo "The found version is [${VERSION}]"
-
-if echo $VERSION | egrep -q 'M|RC'; then
-    echo Activating \"milestone\" profile for version=\"$VERSION\"
-    echo $MAVEN_CONFIG | grep -q milestone || MAVEN_CONFIG="$MAVEN_CONFIG -Pmilestone"
-else
-    echo Deactivating \"milestone\" profile for version=\"$VERSION\"
-    echo $MAVEN_CONFIG | grep -q milestone && MAVEN_CONFIG=$(echo $MAVEN_CONFIG | sed -e 's/-Pmilestone//')
-fi
-
-if echo $VERSION | egrep -q 'RELEASE'; then
-    echo Activating \"central\" profile for version=\"$VERSION\"
-    echo $MAVEN_CONFIG | grep -q milestone || MAVEN_CONFIG="$MAVEN_CONFIG -Pcentral"
-else
-    echo Deactivating \"central\" profile for version=\"$VERSION\"
-    echo $MAVEN_CONFIG | grep -q central && MAVEN_CONFIG=$(echo $MAVEN_CONFIG | sed -e 's/-Pcentral//')
-fi
-
+# shellcheck disable=SC2086 # safe args
 exec "$JAVACMD" \
   $MAVEN_OPTS \
+  $MAVEN_DEBUG_OPTS \
   -classpath "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar" \
-  "-Dmaven.home=${M2_HOME}" "-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \
+  "-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \
   ${WRAPPER_LAUNCHER} $MAVEN_CONFIG "$@"

mvnw.cmd

@@ -7,7 +7,7 @@
 @REM "License"); you may not use this file except in compliance
 @REM with the License.  You may obtain a copy of the License at
 @REM
-@REM    https://www.apache.org/licenses/LICENSE-2.0
+@REM    http://www.apache.org/licenses/LICENSE-2.0
 @REM
 @REM Unless required by applicable law or agreed to in writing,
 @REM software distributed under the License is distributed on an
@@ -18,15 +18,14 @@
 @REM ----------------------------------------------------------------------------
 
 @REM ----------------------------------------------------------------------------
-@REM Maven2 Start Up Batch script
+@REM Apache Maven Wrapper startup batch script, version 3.3.4
 @REM
 @REM Required ENV vars:
 @REM JAVA_HOME - location of a JDK home dir
 @REM
 @REM Optional ENV vars
-@REM M2_HOME - location of maven2's installed home dir
 @REM MAVEN_BATCH_ECHO - set to 'on' to enable the echoing of the batch commands
-@REM MAVEN_BATCH_PAUSE - set to 'on' to wait for a key stroke before ending
+@REM MAVEN_BATCH_PAUSE - set to 'on' to wait for a keystroke before ending
 @REM MAVEN_OPTS - parameters passed to the Java VM when running Maven
 @REM     e.g. to debug Maven itself, use
 @REM set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000
@@ -37,7 +36,7 @@
 @echo off
 @REM set title of command window
 title %0
-@REM enable echoing my setting MAVEN_BATCH_ECHO to 'on'
+@REM enable echoing by setting MAVEN_BATCH_ECHO to 'on'
 @if "%MAVEN_BATCH_ECHO%" == "on"  echo %MAVEN_BATCH_ECHO%
 
 @REM set %HOME% to equivalent of $HOME
@@ -46,8 +45,8 @@ if "%HOME%" == "" (set "HOME=%HOMEDRIVE%%HOMEPATH%")
 @REM Execute a user defined script before this one
 if not "%MAVEN_SKIP_RC%" == "" goto skipRcPre
 @REM check for pre script, once with legacy .bat ending and once with .cmd ending
-if exist "%HOME%\mavenrc_pre.bat" call "%HOME%\mavenrc_pre.bat"
-if exist "%HOME%\mavenrc_pre.cmd" call "%HOME%\mavenrc_pre.cmd"
+if exist "%USERPROFILE%\mavenrc_pre.bat" call "%USERPROFILE%\mavenrc_pre.bat" %*
+if exist "%USERPROFILE%\mavenrc_pre.cmd" call "%USERPROFILE%\mavenrc_pre.cmd" %*
 :skipRcPre
 
 @setlocal
@@ -60,22 +59,22 @@ set ERROR_CODE=0
 @REM ==== START VALIDATION ====
 if not "%JAVA_HOME%" == "" goto OkJHome
 
-echo.
+echo. >&2
 echo Error: JAVA_HOME not found in your environment. >&2
 echo Please set the JAVA_HOME variable in your environment to match the >&2
 echo location of your Java installation. >&2
-echo.
+echo. >&2
 goto error
 
 :OkJHome
 if exist "%JAVA_HOME%\bin\java.exe" goto init
 
-echo.
+echo. >&2
 echo Error: JAVA_HOME is set to an invalid directory. >&2
 echo JAVA_HOME = "%JAVA_HOME%" >&2
 echo Please set the JAVA_HOME variable in your environment to match the >&2
 echo location of your Java installation. >&2
-echo.
+echo. >&2
 goto error
 
 @REM ==== END VALIDATION ====
@@ -120,24 +119,70 @@ SET MAVEN_JAVA_EXE="%JAVA_HOME%\bin\java.exe"
 set WRAPPER_JAR="%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.jar"
 set WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
 
-set DOWNLOAD_URL="https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.4.0/maven-wrapper-0.4.0.jar"
-FOR /F "tokens=1,2 delims==" %%A IN (%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.properties) DO (
-	IF "%%A"=="wrapperUrl" SET DOWNLOAD_URL=%%B 
+set WRAPPER_URL="https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.3.4/maven-wrapper-3.3.4.jar"
+
+FOR /F "usebackq tokens=1,2 delims==" %%A IN ("%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.properties") DO (
+    IF "%%A"=="wrapperUrl" SET WRAPPER_URL=%%B
 )
 
 @REM Extension to allow automatically downloading the maven-wrapper.jar from Maven-central
 @REM This allows using the maven wrapper in projects that prohibit checking in binary data.
 if exist %WRAPPER_JAR% (
-    echo Found %WRAPPER_JAR%
+    if "%MVNW_VERBOSE%" == "true" (
+        echo Found %WRAPPER_JAR%
+    )
 ) else (
-    echo Couldn't find %WRAPPER_JAR%, downloading it ...
-	echo Downloading from: %DOWNLOAD_URL%
-    powershell -Command "(New-Object Net.WebClient).DownloadFile('%DOWNLOAD_URL%', '%WRAPPER_JAR%')"
-    echo Finished downloading %WRAPPER_JAR%
+    if not "%MVNW_REPOURL%" == "" (
+        SET WRAPPER_URL="%MVNW_REPOURL%/org/apache/maven/wrapper/maven-wrapper/3.3.4/maven-wrapper-3.3.4.jar"
+    )
+    if "%MVNW_VERBOSE%" == "true" (
+        echo Couldn't find %WRAPPER_JAR%, downloading it ...
+        echo Downloading from: %WRAPPER_URL%
+    )
+
+    powershell -Command "&{"^
+		"$webclient = new-object System.Net.WebClient;"^
+		"if (-not ([string]::IsNullOrEmpty('%MVNW_USERNAME%') -and [string]::IsNullOrEmpty('%MVNW_PASSWORD%'))) {"^
+		"$webclient.Credentials = new-object System.Net.NetworkCredential('%MVNW_USERNAME%', '%MVNW_PASSWORD%');"^
+		"}"^
+		"[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; $webclient.DownloadFile('%WRAPPER_URL%', '%WRAPPER_JAR%')"^
+		"}"
+    if "%MVNW_VERBOSE%" == "true" (
+        echo Finished downloading %WRAPPER_JAR%
+    )
 )
 @REM End of extension
 
-%MAVEN_JAVA_EXE% %JVM_CONFIG_MAVEN_PROPS% %MAVEN_OPTS% %MAVEN_DEBUG_OPTS% -classpath %WRAPPER_JAR% "-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%" %WRAPPER_LAUNCHER% %MAVEN_CONFIG% %*
+@REM If specified, validate the SHA-256 sum of the Maven wrapper jar file
+SET WRAPPER_SHA_256_SUM=""
+FOR /F "usebackq tokens=1,2 delims==" %%A IN ("%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.properties") DO (
+    IF "%%A"=="wrapperSha256Sum" SET WRAPPER_SHA_256_SUM=%%B
+)
+IF NOT %WRAPPER_SHA_256_SUM%=="" (
+    powershell -Command "&{"^
+       "Import-Module $PSHOME\Modules\Microsoft.PowerShell.Utility -Function Get-FileHash;"^
+       "$hash = (Get-FileHash \"%WRAPPER_JAR%\" -Algorithm SHA256).Hash.ToLower();"^
+       "If('%WRAPPER_SHA_256_SUM%' -ne $hash){"^
+       "  Write-Error 'Error: Failed to validate Maven wrapper SHA-256, your Maven wrapper might be compromised.';"^
+       "  Write-Error 'Investigate or delete %WRAPPER_JAR% to attempt a clean download.';"^
+       "  Write-Error 'If you updated your Maven version, you need to update the specified wrapperSha256Sum property.';"^
+       "  exit 1;"^
+       "}"^
+       "}"
+    if ERRORLEVEL 1 goto error
+)
+
+@REM Provide a "standardized" way to retrieve the CLI args that will
+@REM work with both Windows and non-Windows executions.
+set MAVEN_CMD_LINE_ARGS=%*
+
+%MAVEN_JAVA_EXE% ^
+  %JVM_CONFIG_MAVEN_PROPS% ^
+  %MAVEN_OPTS% ^
+  %MAVEN_DEBUG_OPTS% ^
+  -classpath %WRAPPER_JAR% ^
+  "-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%" ^
+  %WRAPPER_LAUNCHER% %MAVEN_CONFIG% %*
 if ERRORLEVEL 1 goto error
 goto end
 
@@ -147,15 +192,15 @@ set ERROR_CODE=1
 :end
 @endlocal & set ERROR_CODE=%ERROR_CODE%
 
-if not "%MAVEN_SKIP_RC%" == "" goto skipRcPost
+if not "%MAVEN_SKIP_RC%"=="" goto skipRcPost
 @REM check for post script, once with legacy .bat ending and once with .cmd ending
-if exist "%HOME%\mavenrc_post.bat" call "%HOME%\mavenrc_post.bat"
-if exist "%HOME%\mavenrc_post.cmd" call "%HOME%\mavenrc_post.cmd"
+if exist "%USERPROFILE%\mavenrc_post.bat" call "%USERPROFILE%\mavenrc_post.bat"
+if exist "%USERPROFILE%\mavenrc_post.cmd" call "%USERPROFILE%\mavenrc_post.cmd"
 :skipRcPost
 
 @REM pause the script if MAVEN_BATCH_PAUSE is set to 'on'
-if "%MAVEN_BATCH_PAUSE%" == "on" pause
+if "%MAVEN_BATCH_PAUSE%"=="on" pause
 
-if "%MAVEN_TERMINATE_CMD%" == "on" exit %ERROR_CODE%
+if "%MAVEN_TERMINATE_CMD%"=="on" exit %ERROR_CODE%
 
-exit /B %ERROR_CODE%
+cmd /C exit /B %ERROR_CODE%

pom.xml

@@ -3,14 +3,15 @@
 	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>spring-cloud-netflix</artifactId>
-	<version>3.0.3</version>
+	<version>5.1.0-SNAPSHOT</version>
 	<packaging>pom</packaging>
 	<name>Spring Cloud Netflix</name>
 	<description>Spring Cloud Netflix</description>
+	<url>https://github.com/spring-cloud/spring-cloud-netflix</url>
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-build</artifactId>
-		<version>3.0.3</version>
+		<version>5.1.0-SNAPSHOT</version>
 		<relativePath />
 	</parent>
 	<scm>
@@ -19,17 +20,77 @@
 		<developerConnection>scm:git:ssh://git@github.com/spring-cloud/spring-cloud-netflix.git</developerConnection>
 		<tag>HEAD</tag>
 	</scm>
+	<licenses>
+		<license>
+			<name>Apache License, Version 2.0</name>
+			<url>https://www.apache.org/licenses/LICENSE-2.0</url>
+		</license>
+	</licenses>
+	<developers>
+		<developer>
+			<id>dsyer</id>
+			<name>Dave Syer</name>
+			<email>david.syer at broadcom.com</email>
+			<organization>Broadcom, Inc.</organization>
+			<organizationUrl>https://www.spring.io</organizationUrl>
+			<roles>
+				<role>lead</role>
+			</roles>
+		</developer>
+		<developer>
+			<id>sgibb</id>
+			<name>Spencer Gibb</name>
+			<email>spencer.gibb at broadcom.com</email>
+			<organization>Broadcom, Inc.</organization>
+			<organizationUrl>https://www.spring.io</organizationUrl>
+			<roles>
+				<role>lead</role>
+			</roles>
+		</developer>
+		<developer>
+			<id>mgrzejszczak</id>
+			<name>Marcin Grzejszczak</name>
+			<email>>marcin.grzejszczak at broadcom.com</email>
+			<organization>Broadcom, Inc.</organization>
+			<organizationUrl>https://www.spring.io</organizationUrl>
+			<roles>
+				<role>developer</role>
+			</roles>
+		</developer>
+		<developer>
+			<id>rbaxter</id>
+			<name>Ryan Baxter</name>
+			<email>ryan.baxter at broadcom.com</email>
+			<organization>Broadcom, Inc.</organization>
+			<organizationUrl>https://www.spring.io</organizationUrl>
+			<roles>
+				<role>developer</role>
+			</roles>
+		</developer>
+		<developer>
+			<id>omaciaszeksharma</id>
+			<name>Olga Maciaszek-Sharma</name>
+			<email>olga.maciaszek-sharma at broadcom.com</email>
+			<organization>Broadcom, Inc.</organization>
+			<organizationUrl>https://www.spring.io</organizationUrl>
+			<roles>
+				<role>developer</role>
+			</roles>
+		</developer>
+	</developers>
 	<properties>
 		<bintray.package>netflix</bintray.package>
-		<spring-cloud-commons.version>3.0.3</spring-cloud-commons.version>
-		<spring-cloud-config.version>3.0.4</spring-cloud-config.version>
+		<spring-cloud-commons.version>5.1.0-SNAPSHOT</spring-cloud-commons.version>
+		<spring-cloud-config.version>5.1.0-SNAPSHOT</spring-cloud-config.version>
+		<testcontainers.version>1.21.4</testcontainers.version>
+		<mockserverclient.version>5.15.0</mockserverclient.version>
 
 		<!-- Sonar -->
 		<sonar.java.coveragePlugin>jacoco</sonar.java.coveragePlugin>
 		<sonar.dynamicAnalysis>reuseReports</sonar.dynamicAnalysis>
 		<sonar.jacoco.reportPath>${project.basedir}/../target/jacoco.exec</sonar.jacoco.reportPath>
 		<sonar.language>java</sonar.language>
-		<eureka-jersey.version>1.19.4</eureka-jersey.version>
+		<maven-resources-plugin.version>3.1.0</maven-resources-plugin.version>
 	</properties>
 	<build>
 		<plugins>
@@ -55,14 +116,6 @@
 					</additionalConfig>
 				</configuration>
 			</plugin>
-			<plugin>
-				<artifactId>maven-compiler-plugin</artifactId>
-				<version>${maven-compiler-plugin.version}</version>
-				<configuration>
-					<source>1.8</source>
-					<target>1.8</target>
-				</configuration>
-			</plugin>
 			<plugin>
 				<groupId>io.spring.javaformat</groupId>
 				<artifactId>spring-javaformat-maven-plugin</artifactId>
@@ -71,6 +124,18 @@
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-checkstyle-plugin</artifactId>
 			</plugin>
+			<plugin>
+				<groupId>org.basepom.maven</groupId>
+				<artifactId>duplicate-finder-maven-plugin</artifactId>
+				<configuration>
+					<ignoredResourcePatterns>
+						<ignoredResourcePattern>about.html</ignoredResourcePattern>
+						<ignoredResourcePattern>plugin.properties</ignoredResourcePattern>
+						<ignoredResourcePattern>mozilla/public-suffix-list.txt</ignoredResourcePattern>
+					</ignoredResourcePatterns>
+					<checkTestClasspath>false</checkTestClasspath>
+				</configuration>
+			</plugin>
 		</plugins>
 	</build>
 	<dependencyManagement>
@@ -108,32 +173,29 @@
 				<version>1</version>
 			</dependency>
 			<!-- Eureka core dep that is now optional -->
-			<dependency>
-				<groupId>com.sun.jersey</groupId>
-				<artifactId>jersey-servlet</artifactId>
-				<version>${eureka-jersey.version}</version>
-			</dependency>
-			<dependency>
-				<groupId>com.sun.jersey</groupId>
-				<artifactId>jersey-core</artifactId>
-				<version>${eureka-jersey.version}</version>
-			</dependency>
-			<dependency>
-				<groupId>com.sun.jersey</groupId>
-				<artifactId>jersey-client</artifactId>
-				<version>${eureka-jersey.version}</version>
-			</dependency>
-			<dependency>
-				<groupId>com.sun.jersey</groupId>
-				<artifactId>jersey-server</artifactId>
-				<version>${eureka-jersey.version}</version>
-			</dependency>
-			<dependency>
-				<groupId>com.sun.jersey.contribs</groupId>
-				<artifactId>jersey-apache-client4</artifactId>
-				<version>${eureka-jersey.version}</version>
-			</dependency>
 			<!-- end eureka deps -->
+
+			<dependency>
+				<groupId>org.testcontainers</groupId>
+				<artifactId>mockserver</artifactId>
+				<version>${testcontainers.version}</version>
+			</dependency>
+			<dependency>
+				<groupId>org.testcontainers</groupId>
+				<artifactId>junit-jupiter</artifactId>
+				<version>${testcontainers.version}</version>
+			</dependency>
+			<dependency>
+				<groupId>org.mock-server</groupId>
+				<artifactId>mockserver-client-java</artifactId>
+				<version>${mockserverclient.version}</version>
+				<exclusions>
+					<exclusion>
+						<groupId>commons-logging</groupId>
+						<artifactId>commons-logging</artifactId>
+					</exclusion>
+				</exclusions>
+			</dependency>
 		</dependencies>
 	</dependencyManagement>
 	<reporting>
@@ -154,13 +216,29 @@
 		<module>docs</module>
     </modules>
 	<profiles>
+		<profile>
+			<id>central</id>
+			<build>
+				<plugins>
+					<plugin>
+						<groupId>org.sonatype.central</groupId>
+						<artifactId>central-publishing-maven-plugin</artifactId>
+						<configuration>
+							<excludeArtifacts>
+								<artifact>spring-cloud-netflix-eureka-client-tls-tests</artifact>
+							</excludeArtifacts>
+						</configuration>
+					</plugin>
+				</plugins>
+			</build>
+		</profile>
 		<profile>
 			<id>spring</id>
 			<repositories>
 				<repository>
 					<id>spring-snapshots</id>
 					<name>Spring Snapshots</name>
-					<url>https://repo.spring.io/libs-snapshot-local</url>
+					<url>https://repo.spring.io/snapshot</url>
 					<snapshots>
 						<enabled>true</enabled>
 					</snapshots>
@@ -171,7 +249,7 @@
 				<repository>
 					<id>spring-milestones</id>
 					<name>Spring Milestones</name>
-					<url>https://repo.spring.io/libs-milestone-local</url>
+					<url>https://repo.spring.io/milestone</url>
 					<snapshots>
 						<enabled>false</enabled>
 					</snapshots>
@@ -189,7 +267,7 @@
 				<pluginRepository>
 					<id>spring-snapshots</id>
 					<name>Spring Snapshots</name>
-					<url>https://repo.spring.io/libs-snapshot-local</url>
+					<url>https://repo.spring.io/snapshot</url>
 					<snapshots>
 						<enabled>true</enabled>
 					</snapshots>
@@ -200,7 +278,7 @@
 				<pluginRepository>
 					<id>spring-milestones</id>
 					<name>Spring Milestones</name>
-					<url>https://repo.spring.io/libs-milestone-local</url>
+					<url>https://repo.spring.io/milestone</url>
 					<snapshots>
 						<enabled>false</enabled>
 					</snapshots>
@@ -208,7 +286,7 @@
 				<pluginRepository>
 					<id>spring-releases</id>
 					<name>Spring Releases</name>
-					<url>https://repo.spring.io/libs-release-local</url>
+					<url>https://repo.spring.io/release</url>
 					<snapshots>
 						<enabled>false</enabled>
 					</snapshots>

release-train-settings.xml

@@ -0,0 +1,73 @@
+<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"
+          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+          xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 http://maven.apache.org/xsd/settings-1.0.0.xsd">
+
+	<servers>
+		<server>
+			<id>release-train</id>
+			<username>${env.RELEASE_TRAIN_MAVEN_REPOSITORY_USERNAME}</username>
+			<password>${env.RELEASE_TRAIN_MAVEN_REPOSITORY_PASSWORD}</password>
+		</server>
+		<server>
+			<id>spring-commercial-snapshot</id>
+			<username>${env.COMMERCIAL_REPO_USERNAME}</username>
+			<password>${env.COMMERCIAL_REPO_PASSWORD}</password>
+		</server>
+		<server>
+			<id>spring-commercial-release</id>
+			<username>${env.COMMERCIAL_REPO_USERNAME}</username>
+			<password>${env.COMMERCIAL_REPO_PASSWORD}</password>
+		</server>
+		<server>
+			<id>repo-spring-io-spring-commercial-snapshot</id>
+			<username>${env.COMMERCIAL_REPO_USERNAME}</username>
+			<password>${env.COMMERCIAL_REPO_PASSWORD}</password>
+		</server>
+		<server>
+			<id>repo-spring-io-spring-commercial-release</id>
+			<username>${env.COMMERCIAL_REPO_USERNAME}</username>
+			<password>${env.COMMERCIAL_REPO_PASSWORD}</password>
+		</server>
+	</servers>
+
+	<mirrors>
+		<mirror>
+			<!-- This redirects the spring-snapshots repo to the release-train repo -->
+			<id>release-train</id>
+			<mirrorOf>spring-snapshots</mirrorOf>
+			<url>${env.RELEASE_TRAIN_MAVEN_REPOSITORY_URL}</url>
+		</mirror>
+	</mirrors>
+
+	<profiles>
+		<profile>
+			<id>releaseTrain</id>
+			<repositories>
+				<repository>
+					<id>release-train</id>
+					<url>${env.RELEASE_TRAIN_MAVEN_REPOSITORY_URL}</url>
+					<releases>
+						<enabled>true</enabled>
+					</releases>
+					<snapshots>
+						<enabled>true</enabled>
+						<updatePolicy>always</updatePolicy>
+					</snapshots>
+				</repository>
+			</repositories>
+			<pluginRepositories>
+				<pluginRepository>
+					<id>release-train</id>
+					<url>${env.RELEASE_TRAIN_MAVEN_REPOSITORY_URL}</url>
+					<releases>
+						<enabled>true</enabled>
+					</releases>
+					<snapshots>
+						<enabled>true</enabled>
+						<updatePolicy>always</updatePolicy>
+					</snapshots>
+				</pluginRepository>
+			</pluginRepositories>
+		</profile>
+	</profiles>
+</settings>

scripts/runAcceptanceTests.sh

@@ -4,7 +4,7 @@ set -o errexit
 
 mkdir -p target
 
-SCRIPT_URL="https://raw.githubusercontent.com/spring-cloud-samples/brewery/main/runAcceptanceTests.sh"
+SCRIPT_URL="https://raw.githubusercontent.com/spring-cloud-samples/brewery/3.1.x/runAcceptanceTests.sh"
 AT_WHAT_TO_TEST="EUREKA"
 
 cd target

spring-cloud-netflix-dependencies/pom.xml

@@ -5,16 +5,16 @@
 	<parent>
 		<artifactId>spring-cloud-dependencies-parent</artifactId>
 		<groupId>org.springframework.cloud</groupId>
-		<version>3.0.3</version>
+		<version>5.1.0-SNAPSHOT</version>
 		<relativePath/>
 	</parent>
 	<artifactId>spring-cloud-netflix-dependencies</artifactId>
-	<version>3.0.3</version>
+	<version>5.1.0-SNAPSHOT</version>
 	<packaging>pom</packaging>
 	<name>spring-cloud-netflix-dependencies</name>
 	<description>Spring Cloud Netflix Dependencies</description>
 	<properties>
-		<eureka.version>1.10.14</eureka.version>
+		<eureka.version>2.0.6</eureka.version>
 	</properties>
 	<dependencyManagement>
 		<dependencies>
@@ -43,6 +43,10 @@
 				<artifactId>eureka-client</artifactId>
 				<version>${eureka.version}</version>
 				<exclusions>
+					<exclusion>
+						<groupId>com.google.guava</groupId>
+						<artifactId>guava</artifactId>
+					</exclusion>
 					<exclusion>
 						<groupId>com.netflix.archaius</groupId>
 						<artifactId>archaius-core</artifactId>
@@ -51,10 +55,18 @@
 						<groupId>com.github.vlsi.compactmap</groupId>
 						<artifactId>compactmap</artifactId>
 					</exclusion>
+					<exclusion>
+						<groupId>jakarta.servlet</groupId>
+						<artifactId>jakarta.servlet-api</artifactId>
+					</exclusion>
 					<exclusion>
 						<groupId>javax.servlet</groupId>
 						<artifactId>servlet-api</artifactId>
 					</exclusion>
+					<exclusion>
+						<artifactId>commons-configuration</artifactId>
+						<groupId>commons-configuration</groupId>
+					</exclusion>
 					<exclusion>
 						<artifactId>commons-logging</artifactId>
 						<groupId>commons-logging</groupId>
@@ -67,6 +79,10 @@
 						<groupId>com.google.code.findbugs</groupId>
 						<artifactId>annotations</artifactId>
 					</exclusion>
+					<exclusion>
+						<groupId>org.glassfish.jersey.core</groupId>
+						<artifactId>jersey-client</artifactId>
+					</exclusion>
 				</exclusions>
 			</dependency>
 			<dependency>
@@ -78,6 +94,10 @@
 						<groupId>com.netflix.archaius</groupId>
 						<artifactId>archaius-core</artifactId>
 					</exclusion>
+					<exclusion>
+						<groupId>jakarta.servlet</groupId>
+						<artifactId>jakarta.servlet-api</artifactId>
+					</exclusion>
 					<exclusion>
 						<groupId>javax.servlet</groupId>
 						<artifactId>servlet-api</artifactId>
@@ -112,6 +132,26 @@
 					</exclusion>
 				</exclusions>
 			</dependency>
+			<dependency>
+				<groupId>com.netflix.eureka</groupId>
+				<artifactId>eureka-core-jersey3</artifactId>
+				<version>${eureka.version}</version>
+			</dependency>
+			<dependency>
+				<groupId>com.netflix.eureka</groupId>
+				<artifactId>eureka-client-jersey3</artifactId>
+				<version>${eureka.version}</version>
+				<exclusions>
+					<exclusion>
+						<groupId>aopalliance</groupId>
+						<artifactId>aopalliance</artifactId>
+					</exclusion>
+					<exclusion>
+						<groupId>commons-logging</groupId>
+						<artifactId>commons-logging</artifactId>
+					</exclusion>
+				</exclusions>
+			</dependency>
 		</dependencies>
 	</dependencyManagement>
 	<profiles>
@@ -121,7 +161,7 @@
 				<repository>
 					<id>spring-snapshots</id>
 					<name>Spring Snapshots</name>
-					<url>https://repo.spring.io/libs-snapshot-local</url>
+					<url>https://repo.spring.io/snapshot</url>
 					<snapshots>
 						<enabled>true</enabled>
 					</snapshots>
@@ -132,7 +172,7 @@
 				<repository>
 					<id>spring-milestones</id>
 					<name>Spring Milestones</name>
-					<url>https://repo.spring.io/libs-milestone-local</url>
+					<url>https://repo.spring.io/milestone</url>
 					<snapshots>
 						<enabled>false</enabled>
 					</snapshots>
@@ -150,7 +190,7 @@
 				<pluginRepository>
 					<id>spring-snapshots</id>
 					<name>Spring Snapshots</name>
-					<url>https://repo.spring.io/libs-snapshot-local</url>
+					<url>https://repo.spring.io/snapshot</url>
 					<snapshots>
 						<enabled>true</enabled>
 					</snapshots>
@@ -161,7 +201,7 @@
 				<pluginRepository>
 					<id>spring-milestones</id>
 					<name>Spring Milestones</name>
-					<url>https://repo.spring.io/libs-milestone-local</url>
+					<url>https://repo.spring.io/milestone</url>
 					<snapshots>
 						<enabled>false</enabled>
 					</snapshots>

spring-cloud-netflix-eureka-client-tls-tests/pom.xml

@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-netflix</artifactId>
-		<version>3.0.3</version>
+		<version>5.1.0-SNAPSHOT</version>
 		<relativePath>..</relativePath> <!-- lookup parent from repository -->
 	</parent>
 	<artifactId>spring-cloud-netflix-eureka-client-tls-tests</artifactId>
@@ -22,7 +22,6 @@
 			<groupId>org.springframework.cloud</groupId>
 			<artifactId>spring-cloud-netflix-eureka-server</artifactId>
 		</dependency>
-		
 		<dependency>
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot</artifactId>
@@ -48,6 +47,10 @@
 			<groupId>org.springframework</groupId>
 			<artifactId>spring-web</artifactId>
 		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-webflux</artifactId>
+		</dependency>
 		<dependency>
 			<groupId>com.fasterxml.jackson.core</groupId>
 			<artifactId>jackson-annotations</artifactId>
@@ -56,6 +59,12 @@
 			<groupId>org.springframework.retry</groupId>
 			<artifactId>spring-retry</artifactId>
 			<optional>true</optional>
+			<exclusions>
+				<exclusion>
+					<groupId>javax.annotation</groupId>
+					<artifactId>javax.annotation-api</artifactId>
+				</exclusion>
+			</exclusions>
 		</dependency>
 		<dependency>
 			<groupId>org.springframework.boot</groupId>
@@ -64,7 +73,7 @@
 		</dependency>
 		<dependency>
 			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-aop</artifactId>
+			<artifactId>spring-boot-starter-aspectj</artifactId>
 			<optional>true</optional>
 		</dependency>
 		<dependency>
@@ -76,21 +85,34 @@
 			<artifactId>spring-boot-autoconfigure-processor</artifactId>
 			<optional>true</optional>
 		</dependency>
+		<dependency>
+			<groupId>org.springframework.cloud</groupId>
+			<artifactId>spring-cloud-test-support</artifactId>
+			<scope>test</scope>
+		</dependency>
 		<dependency>
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-starter-test</artifactId>
 			<scope>test</scope>
 		</dependency>
-		
 		<dependency>
-			<groupId>org.junit.vintage</groupId>
-			<artifactId>junit-vintage-engine</artifactId>
+			<groupId>org.junit.platform</groupId>
+			<artifactId>junit-platform-suite-api</artifactId>
+			<scope>test</scope>
+		</dependency>
+		<dependency>
+			<groupId>org.junit.platform</groupId>
+			<artifactId>junit-platform-suite-engine</artifactId>
 			<scope>test</scope>
 		</dependency>
 		<dependency>
 			<groupId>org.bouncycastle</groupId>
-			<artifactId>bcpkix-jdk15on</artifactId>
-			<version>1.68</version>
+			<artifactId>bcpkix-jdk18on</artifactId>
+			<scope>test</scope>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-restclient</artifactId>
 			<scope>test</scope>
 		</dependency>
 	</dependencies>
@@ -109,6 +131,12 @@
 					</excludes>
 				</configuration>
 			</plugin>
+			<plugin>
+				<artifactId>maven-deploy-plugin</artifactId>
+				<configuration>
+					<skip>true</skip>
+				</configuration>
+			</plugin>
 		</plugins>
 	</build>
 </project>

spring-cloud-netflix-eureka-client-tls-tests/src/test/java/org/springframework/cloud/netflix/eureka/AppRunner.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2019 the original author or authors.
+ * Copyright 2018-present the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,15 +22,15 @@ import java.util.List;
 import java.util.Map;
 
 import org.springframework.boot.builder.SpringApplicationBuilder;
+import org.springframework.cloud.test.TestSocketUtils;
 import org.springframework.context.ApplicationContext;
 import org.springframework.context.ConfigurableApplicationContext;
-import org.springframework.util.SocketUtils;
 
 public class AppRunner implements AutoCloseable {
 
-	private Class<?> appClass;
+	private final Class<?> appClass;
 
-	private Map<String, String> props;
+	private final Map<String, String> props;
 
 	private ConfigurableApplicationContext app;
 
@@ -48,15 +48,15 @@ public class AppRunner implements AutoCloseable {
 			SpringApplicationBuilder builder = new SpringApplicationBuilder(appClass);
 			builder.properties("spring.application.name=" + appClass.getName());
 			builder.properties("spring.jmx.enabled=false");
-			builder.properties(String.format("server.port=%d", availabeTcpPort()));
+			builder.properties(String.format("server.port=%d", availableTcpPort()));
 			builder.properties(props());
 
 			app = builder.build().run();
 		}
 	}
 
-	private int availabeTcpPort() {
-		return SocketUtils.findAvailableTcpPort();
+	private int availableTcpPort() {
+		return TestSocketUtils.findAvailableTcpPort();
 	}
 
 	private String[] props() {

spring-cloud-netflix-eureka-client-tls-tests/src/test/java/org/springframework/cloud/netflix/eureka/BaseCertTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2019 the original author or authors.
+ * Copyright 2018-present the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -24,17 +24,18 @@ import java.util.function.Supplier;
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
-import org.junit.AfterClass;
-import org.junit.BeforeClass;
-import org.junit.Test;
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.Test;
 
 import org.springframework.beans.factory.BeanCreationException;
 
 import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.assertThatExceptionOfType;
 
-public abstract class BaseCertTest {
+abstract class BaseCertTests {
 
-	private static final Log log = LogFactory.getLog(BaseCertTest.class);
+	private static final Log log = LogFactory.getLog(BaseCertTests.class);
 
 	protected static final String KEY_STORE_PASSWORD = "test-key-store-password";
 
@@ -52,9 +53,10 @@ public abstract class BaseCertTest {
 
 	protected static File wrongClientCert;
 
-	protected BaseCertTest() {
+	protected BaseCertTests() {
 	}
 
+	@SuppressWarnings("rawtypes")
 	static EurekaServerRunner startEurekaServer(Class config) {
 		EurekaServerRunner server = new EurekaServerRunner(config);
 		server.enableTls();
@@ -69,6 +71,7 @@ public abstract class BaseCertTest {
 		server.stop();
 	}
 
+	@SuppressWarnings("rawtypes")
 	static EurekaClientRunner startService(EurekaServerRunner server, Class config) {
 		EurekaClientRunner service = new EurekaClientRunner(config, server, "testservice");
 		enableTlsClient(service);
@@ -94,8 +97,8 @@ public abstract class BaseCertTest {
 		}
 	}
 
-	@BeforeClass
-	public static void createCertificates() throws Exception {
+	@BeforeAll
+	static void createCertificates() throws Exception {
 		KeyTool tool = new KeyTool();
 
 		KeyAndCert ca = tool.createCA("MyCA");
@@ -113,8 +116,8 @@ public abstract class BaseCertTest {
 		wrongClientCert = saveKeyAndCert(wrongClient);
 	}
 
-	@AfterClass
-	public static void afterClass() {
+	@AfterAll
+	static void afterClass() {
 		log.info("Tests finished!");
 	}
 
@@ -125,11 +128,11 @@ public abstract class BaseCertTest {
 	 * purpose explicitly.
 	 */
 	@Test
-	public void clientCertCanWork() {
+	void clientCertCanWork() {
 	}
 
 	@Test
-	public void noCertCannotWork() {
+	void noCertCannotWork() {
 		try (EurekaClientRunner client = createEurekaClient()) {
 			client.disableTls();
 			client.start();
@@ -138,7 +141,7 @@ public abstract class BaseCertTest {
 	}
 
 	@Test
-	public void wrongCertCannotWork() {
+	void wrongCertCannotWork() {
 		try (EurekaClientRunner client = createEurekaClient()) {
 			enableTlsClient(client);
 			client.setKeyStore(wrongClientCert);
@@ -147,24 +150,16 @@ public abstract class BaseCertTest {
 		}
 	}
 
-	@Test(expected = BeanCreationException.class)
-	public void wrongPasswordCauseFailure() {
+	@Test
+	void wrongPasswordCauseFailure() {
 		EurekaClientRunner client = createEurekaClient();
 		enableTlsClient(client);
 		client.setKeyStore(clientCert, WRONG_PASSWORD, WRONG_PASSWORD);
-		client.start();
-	}
-
-	@Test(expected = BeanCreationException.class)
-	public void nonExistKeyStoreCauseFailure() {
-		EurekaClientRunner client = createEurekaClient();
-		enableTlsClient(client);
-		client.setKeyStore(new File("nonExistFile"));
-		client.start();
+		assertThatExceptionOfType(BeanCreationException.class).isThrownBy(client::start);
 	}
 
 	@Test
-	public void wrongTrustStoreCannotWork() {
+	void wrongTrustStoreCannotWork() {
 		try (EurekaClientRunner client = createEurekaClient()) {
 			enableTlsClient(client);
 			client.setTrustStore(wrongCaCert);
@@ -178,7 +173,7 @@ public abstract class BaseCertTest {
 	}
 
 	private static File saveCert(KeyAndCert keyCert) throws Exception {
-		return saveKeyStore(keyCert.subject(), () -> keyCert.storeCert());
+		return saveKeyStore(keyCert.subject(), keyCert::storeCert);
 	}
 
 	private static File saveKeyStore(String prefix, KeyStoreSupplier func) throws Exception {

spring-cloud-netflix-eureka-client-tls-tests/src/test/java/org/springframework/cloud/netflix/eureka/EurekaClientRunner.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2019 the original author or authors.
+ * Copyright 2018-present the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -72,13 +72,13 @@ public class EurekaClientRunner extends AppRunner {
 	}
 
 	public void waitServiceViaEureka(int seconds) {
-		assertInSeconds(() -> foundServiceViaEureka(), seconds);
+		assertInSeconds(this::foundServiceViaEureka, seconds);
 	}
 
 	private void assertInSeconds(BooleanSupplier assertion, int seconds) {
 		long start = System.currentTimeMillis();
 		long limit = 1000L * seconds;
-		long duration = 0;
+		long duration;
 
 		do {
 			if (assertion.getAsBoolean()) {
@@ -98,8 +98,9 @@ public class EurekaClientRunner extends AppRunner {
 		return !discovery.getServices().isEmpty();
 	}
 
+	@SuppressWarnings("unchecked")
 	public AbstractDiscoveryClientOptionalArgs<Void> discoveryClientOptionalArgs() {
-		return this.getBean(AbstractDiscoveryClientOptionalArgs.class);
+		return getBean(AbstractDiscoveryClientOptionalArgs.class);
 	}
 
 }

spring-cloud-netflix-eureka-client-tls-tests/src/test/java/org/springframework/cloud/netflix/eureka/EurekaClientSuite.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2019 the original author or authors.
+ * Copyright 2018-present the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,8 +16,8 @@
 
 package org.springframework.cloud.netflix.eureka;
 
-import org.junit.runner.RunWith;
-import org.junit.runners.Suite;
+import org.junit.platform.suite.api.SelectClasses;
+import org.junit.platform.suite.api.Suite;
 
 /**
  * We need to use a suite cause we need to first run all the Eureka Servers, then close
@@ -26,8 +26,8 @@ import org.junit.runners.Suite;
  * That means that when the new context starts we will fail cause the executor service is
  * already shutdown.
  */
-@RunWith(Suite.class)
-@Suite.SuiteClasses({ EurekaClientTest.class, RestTemplateEurekaClientTest.class })
+@SelectClasses({ EurekaClientTests.class, RestClientEurekaClientTests.class, WebClientEurekaClientTests.class })
+@Suite
 public class EurekaClientSuite {
 
 }

spring-cloud-netflix-eureka-client-tls-tests/src/test/java/org/springframework/cloud/netflix/eureka/EurekaClientTest.java

@@ -1,67 +0,0 @@
-/*
- * Copyright 2018-2019 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.springframework.cloud.netflix.eureka;
-
-import com.netflix.discovery.DiscoveryClient;
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
-import org.junit.BeforeClass;
-
-import org.springframework.boot.SpringBootConfiguration;
-import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
-import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
-
-import static org.assertj.core.api.Assertions.assertThat;
-
-public class EurekaClientTest extends BaseCertTest {
-
-	private static final Log log = LogFactory.getLog(EurekaClientTest.class);
-
-	static EurekaServerRunner server;
-
-	static EurekaClientRunner service;
-
-	@BeforeClass
-	public static void setupAll() {
-		server = startEurekaServer(EurekaClientTest.TestEurekaServer.class);
-		service = startService(server, EurekaClientTest.TestApp.class);
-		// Will use Jersey
-		assertThat(service.discoveryClientOptionalArgs())
-				.isInstanceOf(DiscoveryClient.DiscoveryClientOptionalArgs.class);
-		log.info("Successfully asserted that Jersey will be used");
-		waitForRegistration(() -> new EurekaClientTest().createEurekaClient());
-	}
-
-	@Override
-	EurekaClientRunner createEurekaClient() {
-		return new EurekaClientRunner(TestApp.class, server);
-	}
-
-	@SpringBootConfiguration
-	@EnableAutoConfiguration
-	public static class TestApp {
-
-	}
-
-	@SpringBootConfiguration
-	@EnableAutoConfiguration
-	@EnableEurekaServer
-	public static class TestEurekaServer {
-
-	}
-
-}

spring-cloud-netflix-eureka-client-tls-tests/src/test/java/org/springframework/cloud/netflix/eureka/EurekaClientTests.java

@@ -0,0 +1,84 @@
+/*
+ * Copyright 2018-present the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.cloud.netflix.eureka;
+
+import java.util.Collections;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.junit.jupiter.api.BeforeAll;
+
+import org.springframework.boot.SpringBootConfiguration;
+import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
+import org.springframework.cloud.netflix.eureka.http.DefaultEurekaClientHttpRequestFactorySupplier;
+import org.springframework.cloud.netflix.eureka.http.RestClientDiscoveryClientOptionalArgs;
+import org.springframework.cloud.netflix.eureka.http.RestClientTransportClientFactories;
+import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
+import org.springframework.context.annotation.Bean;
+import org.springframework.web.client.RestClient;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+public class EurekaClientTests extends BaseCertTests {
+
+	private static final Log LOG = LogFactory.getLog(EurekaClientTests.class);
+
+	static EurekaServerRunner server;
+
+	static EurekaClientRunner service;
+
+	@BeforeAll
+	public static void setupAll() {
+		server = startEurekaServer(EurekaClientTests.TestEurekaServer.class);
+		service = startService(server, EurekaClientTests.TestApp.class);
+		assertThat(service.discoveryClientOptionalArgs()).isInstanceOf(RestClientDiscoveryClientOptionalArgs.class);
+		LOG.info("Successfully asserted that Jersey will be used");
+		waitForRegistration(() -> new EurekaClientTests().createEurekaClient());
+	}
+
+	@Override
+	EurekaClientRunner createEurekaClient() {
+		return new EurekaClientRunner(TestApp.class, server);
+	}
+
+	@SpringBootConfiguration
+	@EnableAutoConfiguration
+	public static class TestApp {
+
+		@Bean
+		public RestClientTransportClientFactories forceRestClientTransportClientFactories(
+				RestClientDiscoveryClientOptionalArgs discoveryClientOptionalArgs) {
+			return new RestClientTransportClientFactories(discoveryClientOptionalArgs);
+		}
+
+		@Bean
+		public RestClientDiscoveryClientOptionalArgs discoveryClientOptionalArgs() {
+			return new RestClientDiscoveryClientOptionalArgs(
+					new DefaultEurekaClientHttpRequestFactorySupplier(new TimeoutProperties(), Collections.emptySet()),
+					RestClient::builder);
+		}
+
+	}
+
+	@SpringBootConfiguration
+	@EnableAutoConfiguration
+	@EnableEurekaServer
+	public static class TestEurekaServer {
+
+	}
+
+}

spring-cloud-netflix-eureka-client-tls-tests/src/test/java/org/springframework/cloud/netflix/eureka/EurekaServerRunner.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2019 the original author or authors.
+ * Copyright 2018-present the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

spring-cloud-netflix-eureka-client-tls-tests/src/test/java/org/springframework/cloud/netflix/eureka/KeyAndCert.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2019 the original author or authors.
+ * Copyright 2018-present the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -25,9 +25,9 @@ import java.security.cert.X509Certificate;
 
 public class KeyAndCert {
 
-	private KeyPair keyPair;
+	private final KeyPair keyPair;
 
-	private X509Certificate certificate;
+	private final X509Certificate certificate;
 
 	public KeyAndCert(KeyPair keyPair, X509Certificate certificate) {
 		this.keyPair = keyPair;
@@ -51,7 +51,7 @@ public class KeyAndCert {
 	}
 
 	public String subject() {
-		String dn = certificate.getSubjectDN().getName();
+		String dn = certificate.getSubjectX500Principal().getName();
 		int index = dn.indexOf('=');
 		return dn.substring(index + 1);
 	}

spring-cloud-netflix-eureka-client-tls-tests/src/test/java/org/springframework/cloud/netflix/eureka/KeyTool.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2019 the original author or authors.
+ * Copyright 2018-present the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -56,9 +56,7 @@ public class KeyTool {
 
 	public KeyAndCert signCertificate(KeyPair keyPair, String subject, KeyAndCert signer) throws Exception {
 		X509Certificate certificate = createCert(keyPair.getPublic(), signer.privateKey(), signer.subject(), subject);
-		KeyAndCert result = new KeyAndCert(keyPair, certificate);
-
-		return result;
+		return new KeyAndCert(keyPair, certificate);
 	}
 
 	public KeyPair createKeyPair() throws Exception {

spring-cloud-netflix-eureka-client-tls-tests/src/test/java/org/springframework/cloud/netflix/eureka/RestClientEurekaClientTests.java

@@ -0,0 +1,114 @@
+/*
+ * Copyright 2018-present the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.cloud.netflix.eureka;
+
+import java.io.IOException;
+import java.security.GeneralSecurityException;
+import java.util.Collections;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.BeforeAll;
+
+import org.springframework.boot.SpringBootConfiguration;
+import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
+import org.springframework.cloud.configuration.TlsProperties;
+import org.springframework.cloud.netflix.eureka.http.DefaultEurekaClientHttpRequestFactorySupplier;
+import org.springframework.cloud.netflix.eureka.http.EurekaClientHttpRequestFactorySupplier;
+import org.springframework.cloud.netflix.eureka.http.RestClientDiscoveryClientOptionalArgs;
+import org.springframework.cloud.netflix.eureka.http.RestClientTransportClientFactories;
+import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
+import org.springframework.context.annotation.Bean;
+import org.springframework.web.client.RestClient;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.springframework.cloud.netflix.eureka.config.DiscoveryClientOptionalArgsConfiguration.setupTLS;
+
+/**
+ * Tests for verifying TLS setup with {@link RestClientTransportClientFactories}.
+ *
+ * @author Olga Maciaszek-Sharma
+ */
+public class RestClientEurekaClientTests extends BaseCertTests {
+
+	private static final Log LOG = LogFactory.getLog(RestClientEurekaClientTests.class);
+
+	private static EurekaServerRunner server;
+
+	private static EurekaClientRunner service;
+
+	@BeforeAll
+	public static void setupAll() {
+		server = startEurekaServer(TestEurekaServer.class);
+		service = startService(server, TestApp.class);
+		// Will use RestClient
+		assertThat(service.discoveryClientOptionalArgs()).isInstanceOf(RestClientDiscoveryClientOptionalArgs.class);
+		LOG.info("Successfully asserted that RestClient will be used");
+		waitForRegistration(() -> new RestClientEurekaClientTests().createEurekaClient());
+	}
+
+	@AfterAll
+	public static void tearDownAll() {
+		stopService(service);
+		stopEurekaServer(server);
+	}
+
+	@Override
+	EurekaClientRunner createEurekaClient() {
+		return new EurekaClientRunner(TestApp.class, server);
+	}
+
+	@SpringBootConfiguration
+	@EnableAutoConfiguration
+	public static class TestApp {
+
+		// Want to force reusing exactly the same bean as on production without excluding
+		// jersey from the classpath
+		@Bean
+		public RestClientDiscoveryClientOptionalArgs forceRestClientDiscoveryClientOptionalArgs(
+				TlsProperties tlsProperties,
+				EurekaClientHttpRequestFactorySupplier eurekaClientHttpRequestFactorySupplier)
+				throws GeneralSecurityException, IOException {
+			RestClientDiscoveryClientOptionalArgs result = new RestClientDiscoveryClientOptionalArgs(
+					eurekaClientHttpRequestFactorySupplier, RestClient::builder);
+			setupTLS(result, tlsProperties);
+			return result;
+		}
+
+		@Bean
+		public RestClientTransportClientFactories forceRestClientTransportClientFactories(
+				RestClientDiscoveryClientOptionalArgs discoveryClientOptionalArgs) {
+			return new RestClientTransportClientFactories(discoveryClientOptionalArgs);
+		}
+
+		@Bean
+		EurekaClientHttpRequestFactorySupplier defaultEurekaClientHttpRequestFactorySupplier(
+				TimeoutProperties timeoutProperties) {
+			return new DefaultEurekaClientHttpRequestFactorySupplier(timeoutProperties, Collections.emptySet());
+		}
+
+	}
+
+	@SpringBootConfiguration
+	@EnableAutoConfiguration
+	@EnableEurekaServer
+	public static class TestEurekaServer {
+
+	}
+
+}

spring-cloud-netflix-eureka-client-tls-tests/src/test/java/org/springframework/cloud/netflix/eureka/RestTemplateEurekaClientTest.java

@@ -1,91 +0,0 @@
-/*
- * Copyright 2018-2019 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.springframework.cloud.netflix.eureka;
-
-import java.io.IOException;
-import java.security.GeneralSecurityException;
-
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
-import org.junit.AfterClass;
-import org.junit.BeforeClass;
-
-import org.springframework.boot.SpringBootConfiguration;
-import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
-import org.springframework.cloud.configuration.TlsProperties;
-import org.springframework.cloud.netflix.eureka.config.DiscoveryClientOptionalArgsConfiguration;
-import org.springframework.cloud.netflix.eureka.http.EurekaClientHttpRequestFactorySupplier;
-import org.springframework.cloud.netflix.eureka.http.RestTemplateDiscoveryClientOptionalArgs;
-import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
-import org.springframework.context.annotation.Bean;
-
-import static org.assertj.core.api.Assertions.assertThat;
-
-public class RestTemplateEurekaClientTest extends BaseCertTest {
-
-	private static final Log log = LogFactory.getLog(RestTemplateEurekaClientTest.class);
-
-	private static EurekaServerRunner server;
-
-	private static EurekaClientRunner service;
-
-	@BeforeClass
-	public static void setupAll() {
-		server = startEurekaServer(RestTemplateEurekaClientTest.RestTemplateTestEurekaServer.class);
-		service = startService(server, RestTemplateEurekaClientTest.RestTemplateTestApp.class);
-		// Will use RestTemplate
-		assertThat(service.discoveryClientOptionalArgs()).isInstanceOf(RestTemplateDiscoveryClientOptionalArgs.class);
-		log.info("Successfully asserted that RestTemplate will be used");
-		waitForRegistration(() -> new RestTemplateEurekaClientTest().createEurekaClient());
-	}
-
-	@AfterClass
-	public static void tearDownAll() {
-		stopService(service);
-		stopEurekaServer(server);
-	}
-
-	@Override
-	EurekaClientRunner createEurekaClient() {
-		return new EurekaClientRunner(RestTemplateTestApp.class, server);
-	}
-
-	@SpringBootConfiguration
-	@EnableAutoConfiguration
-	public static class RestTemplateTestApp {
-
-		// Want to force reusing exactly the same bean as on production without excluding
-		// jersey from the classpath
-		@Bean
-		public RestTemplateDiscoveryClientOptionalArgs forceRestTemplateDiscoveryClientOptionalArgs(
-				TlsProperties tlsProperties, DiscoveryClientOptionalArgsConfiguration configuration,
-				EurekaClientHttpRequestFactorySupplier eurekaClientHttpRequestFactorySupplier)
-				throws GeneralSecurityException, IOException {
-			return configuration.restTemplateDiscoveryClientOptionalArgs(tlsProperties,
-					eurekaClientHttpRequestFactorySupplier);
-		}
-
-	}
-
-	@SpringBootConfiguration
-	@EnableAutoConfiguration
-	@EnableEurekaServer
-	public static class RestTemplateTestEurekaServer {
-
-	}
-
-}

spring-cloud-netflix-eureka-client-tls-tests/src/test/java/org/springframework/cloud/netflix/eureka/WebClientEurekaClientTests.java

@@ -0,0 +1,99 @@
+/*
+ * Copyright 2018-present the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.cloud.netflix.eureka;
+
+import java.io.IOException;
+import java.security.GeneralSecurityException;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.junit.jupiter.api.AfterAll;
+import org.junit.jupiter.api.BeforeAll;
+
+import org.springframework.boot.SpringBootConfiguration;
+import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
+import org.springframework.cloud.configuration.TlsProperties;
+import org.springframework.cloud.netflix.eureka.http.WebClientDiscoveryClientOptionalArgs;
+import org.springframework.cloud.netflix.eureka.http.WebClientTransportClientFactories;
+import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
+import org.springframework.context.annotation.Bean;
+import org.springframework.web.reactive.function.client.WebClient;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.springframework.cloud.netflix.eureka.config.DiscoveryClientOptionalArgsConfiguration.setupTLS;
+
+/**
+ * Tests for verifying TLS setup with {@link WebClientTransportClientFactories}.
+ *
+ * @author Yash Chauhan
+ */
+public class WebClientEurekaClientTests extends BaseCertTests {
+
+	private static final Log LOG = LogFactory.getLog(WebClientEurekaClientTests.class);
+
+	private static EurekaServerRunner server;
+
+	private static EurekaClientRunner service;
+
+	@BeforeAll
+	public static void setupAll() {
+		server = startEurekaServer(TestEurekaServer.class);
+		service = startService(server, TestApp.class);
+		assertThat(service.discoveryClientOptionalArgs()).isInstanceOf(WebClientDiscoveryClientOptionalArgs.class);
+		LOG.info("Successfully asserted that WebClient will be used");
+		waitForRegistration(() -> new WebClientEurekaClientTests().createEurekaClient());
+	}
+
+	@AfterAll
+	public static void tearDownAll() {
+		stopService(service);
+		stopEurekaServer(server);
+	}
+
+	@Override
+	EurekaClientRunner createEurekaClient() {
+		return new EurekaClientRunner(TestApp.class, server);
+	}
+
+	@SpringBootConfiguration
+	@EnableAutoConfiguration
+	public static class TestApp {
+
+		@Bean
+		public WebClientDiscoveryClientOptionalArgs forceWebClientDiscoveryClientOptionalArgs(
+				TlsProperties tlsProperties) throws GeneralSecurityException, IOException {
+			WebClientDiscoveryClientOptionalArgs result = new WebClientDiscoveryClientOptionalArgs(WebClient::builder);
+			result.setHostnameVerifier((hostname, session) -> true);
+			setupTLS(result, tlsProperties);
+			return result;
+		}
+
+		@Bean
+		public WebClientTransportClientFactories forceWebClientTransportClientFactories() {
+			return new WebClientTransportClientFactories(WebClient::builder);
+		}
+
+	}
+
+	@SpringBootConfiguration
+	@EnableAutoConfiguration
+	@EnableEurekaServer
+	public static class TestEurekaServer {
+
+	}
+
+}

spring-cloud-netflix-eureka-client/pom.xml

@@ -1,11 +1,12 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+		 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-netflix</artifactId>
-		<version>3.0.3</version>
+		<version>5.1.0-SNAPSHOT</version>
 		<relativePath>..</relativePath> <!-- lookup parent from repository -->
 	</parent>
 	<artifactId>spring-cloud-netflix-eureka-client</artifactId>
@@ -14,14 +15,33 @@
 	<description>Spring Cloud Netflix Eureka Client</description>
 	<properties>
 		<!-- Why do I need this now? -->
-		<maven.javadoc.failOnError>false</maven.javadoc.failOnError>		
+		<maven.javadoc.failOnError>false</maven.javadoc.failOnError>
 	</properties>
 	<dependencies>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-jackson2</artifactId>
+		</dependency>
 		<dependency>
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-configuration-processor</artifactId>
 			<optional>true</optional>
 		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-http-codec</artifactId>
+			<optional>true</optional>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-restclient</artifactId>
+			<optional>true</optional>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-webclient</artifactId>
+			<optional>true</optional>
+		</dependency>
 		<dependency>
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-starter-actuator</artifactId>
@@ -40,7 +60,7 @@
 		<dependency>
 			<groupId>org.springframework.cloud</groupId>
 			<artifactId>spring-cloud-config-server</artifactId>
-			<optional>true</optional>
+			<scope>test</scope>
 		</dependency>
 		<dependency>
 			<groupId>org.springframework.cloud</groupId>
@@ -50,39 +70,6 @@
 		<dependency>
 			<groupId>com.netflix.eureka</groupId>
 			<artifactId>eureka-client</artifactId>
-			<optional>true</optional>
-			<exclusions>
-				<exclusion>
-					<groupId>com.sun.jersey</groupId>
-					<artifactId>jersey-client</artifactId>
-				</exclusion>
-				<exclusion>
-					<groupId>com.sun.jersey</groupId>
-					<artifactId>jersey-core</artifactId>
-				</exclusion>
-				<exclusion>
-					<groupId>com.sun.jersey.contribs</groupId>
-					<artifactId>jersey-apache-client4</artifactId>
-				</exclusion>
-			</exclusions>
-		</dependency>
-		<dependency>
-			<groupId>com.sun.jersey</groupId>
-			<artifactId>jersey-core</artifactId>
-			<version>${eureka-jersey.version}</version>
-			<optional>true</optional>
-		</dependency>
-		<dependency>
-			<groupId>com.sun.jersey</groupId>
-			<artifactId>jersey-client</artifactId>
-			<version>${eureka-jersey.version}</version>
-			<optional>true</optional>
-		</dependency>
-		<dependency>
-			<groupId>com.sun.jersey.contribs</groupId>
-			<artifactId>jersey-apache-client4</artifactId>
-			<version>${eureka-jersey.version}</version>
-			<optional>true</optional>
 		</dependency>
 		<dependency>
 			<groupId>javax.inject</groupId>
@@ -100,6 +87,10 @@
 			<artifactId>spring-boot-autoconfigure-processor</artifactId>
 			<optional>true</optional>
 		</dependency>
+		<dependency>
+			<groupId>org.apache.httpcomponents.client5</groupId>
+			<artifactId>httpclient5</artifactId>
+		</dependency>
 		<dependency>
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-starter-security</artifactId>
@@ -110,11 +101,6 @@
 			<artifactId>spring-boot-starter-test</artifactId>
 			<scope>test</scope>
 		</dependency>
-		<dependency>
-			<groupId>org.junit.vintage</groupId>
-			<artifactId>junit-vintage-engine</artifactId>
-			<scope>test</scope>
-		</dependency>
 		<dependency>
 			<groupId>org.springframework.cloud</groupId>
 			<artifactId>spring-cloud-test-support</artifactId>
@@ -124,11 +110,32 @@
 			<groupId>org.springframework.retry</groupId>
 			<artifactId>spring-retry</artifactId>
 			<scope>test</scope>
+			<exclusions>
+				<exclusion>
+					<groupId>javax.annotation</groupId>
+					<artifactId>javax.annotation-api</artifactId>
+				</exclusion>
+			</exclusions>
 		</dependency>
 		<dependency>
 			<groupId>io.projectreactor</groupId>
 			<artifactId>reactor-test</artifactId>
 			<scope>test</scope>
 		</dependency>
+		<dependency>
+			<groupId>org.testcontainers</groupId>
+			<artifactId>mockserver</artifactId>
+			<scope>test</scope>
+		</dependency>
+		<dependency>
+			<groupId>org.testcontainers</groupId>
+			<artifactId>junit-jupiter</artifactId>
+			<scope>test</scope>
+		</dependency>
+		<dependency>
+			<groupId>org.mock-server</groupId>
+			<artifactId>mockserver-client-java</artifactId>
+			<scope>test</scope>
+		</dependency>
 	</dependencies>
 </project>

spring-cloud-netflix-eureka-client/src/main/java/org/springframework/cloud/netflix/eureka/CloudEurekaClient.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-present the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -28,6 +28,7 @@ import com.netflix.discovery.DiscoveryClient;
 import com.netflix.discovery.EurekaClientConfig;
 import com.netflix.discovery.shared.transport.EurekaHttpClient;
 import com.netflix.discovery.shared.transport.EurekaHttpResponse;
+import com.netflix.discovery.shared.transport.jersey.TransportClientFactories;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 
@@ -48,22 +49,23 @@ public class CloudEurekaClient extends DiscoveryClient {
 
 	private final AtomicLong cacheRefreshedCount = new AtomicLong(0);
 
-	private ApplicationEventPublisher publisher;
+	private final ApplicationEventPublisher publisher;
 
-	private Field eurekaTransportField;
+	private final Field eurekaTransportField;
 
-	private ApplicationInfoManager applicationInfoManager;
+	private final ApplicationInfoManager applicationInfoManager;
 
-	private AtomicReference<EurekaHttpClient> eurekaHttpClient = new AtomicReference<>();
+	private final AtomicReference<EurekaHttpClient> eurekaHttpClient = new AtomicReference<>();
 
 	public CloudEurekaClient(ApplicationInfoManager applicationInfoManager, EurekaClientConfig config,
-			ApplicationEventPublisher publisher) {
-		this(applicationInfoManager, config, null, publisher);
+			TransportClientFactories transportClientFactories, ApplicationEventPublisher publisher) {
+		this(applicationInfoManager, config, transportClientFactories, null, publisher);
 	}
 
 	public CloudEurekaClient(ApplicationInfoManager applicationInfoManager, EurekaClientConfig config,
-			AbstractDiscoveryClientOptionalArgs<?> args, ApplicationEventPublisher publisher) {
-		super(applicationInfoManager, config, args);
+			TransportClientFactories transportClientFactories, AbstractDiscoveryClientOptionalArgs<?> args,
+			ApplicationEventPublisher publisher) {
+		super(applicationInfoManager, config, transportClientFactories, args);
 		this.applicationInfoManager = applicationInfoManager;
 		this.publisher = publisher;
 		this.eurekaTransportField = ReflectionUtils.findField(DiscoveryClient.class, "eurekaTransport");

spring-cloud-netflix-eureka-client/src/main/java/org/springframework/cloud/netflix/eureka/CloudEurekaInstanceConfig.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-present the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

spring-cloud-netflix-eureka-client/src/main/java/org/springframework/cloud/netflix/eureka/CloudEurekaTransportConfig.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-present the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -193,20 +193,43 @@ public class CloudEurekaTransportConfig implements EurekaTransportConfig {
 	@Override
 	public String toString() {
 		return new StringBuilder("CloudEurekaTransportConfig{").append("sessionedClientReconnectIntervalSeconds=")
-				.append(sessionedClientReconnectIntervalSeconds).append(", ")
-				.append("retryableClientQuarantineRefreshPercentage=")
-				.append(retryableClientQuarantineRefreshPercentage).append(", ")
-				.append("bootstrapResolverRefreshIntervalSeconds=").append(bootstrapResolverRefreshIntervalSeconds)
-				.append(", ").append("applicationsResolverDataStalenessThresholdSeconds=")
-				.append(applicationsResolverDataStalenessThresholdSeconds).append(", ")
-				.append("asyncResolverRefreshIntervalMs=").append(asyncResolverRefreshIntervalMs).append(", ")
-				.append("asyncResolverWarmUpTimeoutMs=").append(asyncResolverWarmUpTimeoutMs).append(", ")
-				.append("asyncExecutorThreadPoolSize=").append(asyncExecutorThreadPoolSize).append(", ")
-				.append("readClusterVip='").append(readClusterVip).append("', ").append("writeClusterVip='")
-				.append(writeClusterVip).append("', ").append("bootstrapResolverForQuery=")
-				.append(bootstrapResolverForQuery).append(", ").append("bootstrapResolverStrategy='")
-				.append(bootstrapResolverStrategy).append("', ").append("applicationsResolverUseIp=")
-				.append(applicationsResolverUseIp).append(", ").append("}").toString();
+			.append(sessionedClientReconnectIntervalSeconds)
+			.append(", ")
+			.append("retryableClientQuarantineRefreshPercentage=")
+			.append(retryableClientQuarantineRefreshPercentage)
+			.append(", ")
+			.append("bootstrapResolverRefreshIntervalSeconds=")
+			.append(bootstrapResolverRefreshIntervalSeconds)
+			.append(", ")
+			.append("applicationsResolverDataStalenessThresholdSeconds=")
+			.append(applicationsResolverDataStalenessThresholdSeconds)
+			.append(", ")
+			.append("asyncResolverRefreshIntervalMs=")
+			.append(asyncResolverRefreshIntervalMs)
+			.append(", ")
+			.append("asyncResolverWarmUpTimeoutMs=")
+			.append(asyncResolverWarmUpTimeoutMs)
+			.append(", ")
+			.append("asyncExecutorThreadPoolSize=")
+			.append(asyncExecutorThreadPoolSize)
+			.append(", ")
+			.append("readClusterVip='")
+			.append(readClusterVip)
+			.append("', ")
+			.append("writeClusterVip='")
+			.append(writeClusterVip)
+			.append("', ")
+			.append("bootstrapResolverForQuery=")
+			.append(bootstrapResolverForQuery)
+			.append(", ")
+			.append("bootstrapResolverStrategy='")
+			.append(bootstrapResolverStrategy)
+			.append("', ")
+			.append("applicationsResolverUseIp=")
+			.append(applicationsResolverUseIp)
+			.append(", ")
+			.append("}")
+			.toString();
 	}
 
 }

spring-cloud-netflix-eureka-client/src/main/java/org/springframework/cloud/netflix/eureka/EnableEurekaClient.java

@@ -1,42 +0,0 @@
-/*
- * Copyright 2013-2020 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.springframework.cloud.netflix.eureka;
-
-import java.lang.annotation.Documented;
-import java.lang.annotation.ElementType;
-import java.lang.annotation.Inherited;
-import java.lang.annotation.Retention;
-import java.lang.annotation.RetentionPolicy;
-import java.lang.annotation.Target;
-
-/**
- * Convenience annotation for clients to enable Eureka discovery configuration
- * (specifically). Use this (optionally) in case you want discovery and know for sure that
- * it is Eureka you want. All it does is turn on discovery and let the autoconfiguration
- * find the eureka classes if they are available (i.e. you need Eureka on the classpath as
- * well).
- *
- * @author Dave Syer
- * @author Spencer Gibb
- */
-@Target(ElementType.TYPE)
-@Retention(RetentionPolicy.RUNTIME)
-@Documented
-@Inherited
-public @interface EnableEurekaClient {
-
-}

spring-cloud-netflix-eureka-client/src/main/java/org/springframework/cloud/netflix/eureka/EurekaClientAutoConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-present the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -24,18 +24,38 @@ import java.lang.annotation.Target;
 import java.util.Map;
 
 import com.netflix.appinfo.ApplicationInfoManager;
+import com.netflix.appinfo.DataCenterInfo;
 import com.netflix.appinfo.EurekaInstanceConfig;
 import com.netflix.appinfo.HealthCheckHandler;
 import com.netflix.appinfo.InstanceInfo;
+import com.netflix.appinfo.LeaseInfo;
+import com.netflix.appinfo.MyDataCenterInfo;
 import com.netflix.discovery.AbstractDiscoveryClientOptionalArgs;
+import com.netflix.discovery.DiscoveryClient;
 import com.netflix.discovery.EurekaClient;
 import com.netflix.discovery.EurekaClientConfig;
+import com.netflix.discovery.TimedSupervisorTask;
+import com.netflix.discovery.converters.jackson.DataCenterTypeInfoResolver;
+import com.netflix.discovery.converters.jackson.builder.ApplicationsJacksonBuilder;
+import com.netflix.discovery.converters.jackson.mixin.InstanceInfoJsonMixIn;
+import com.netflix.discovery.shared.Application;
+import com.netflix.discovery.shared.Applications;
+import com.netflix.discovery.shared.resolver.AsyncResolver;
+import com.netflix.discovery.shared.resolver.DefaultEndpoint;
+import com.netflix.discovery.shared.resolver.EurekaEndpoint;
+import com.netflix.discovery.shared.transport.EurekaHttpResponse;
+import com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator;
+import com.netflix.discovery.shared.transport.decorator.RetryableEurekaHttpClient;
+import com.netflix.discovery.shared.transport.decorator.SessionedEurekaHttpClient;
+import com.netflix.discovery.shared.transport.jersey.TransportClientFactories;
 
 import org.springframework.aop.support.AopUtils;
+import org.springframework.aot.hint.MemberCategory;
+import org.springframework.aot.hint.RuntimeHints;
+import org.springframework.aot.hint.RuntimeHintsRegistrar;
+import org.springframework.aot.hint.TypeReference;
 import org.springframework.beans.factory.ObjectProvider;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.boot.actuate.autoconfigure.health.ConditionalOnEnabledHealthIndicator;
-import org.springframework.boot.actuate.health.Health;
 import org.springframework.boot.autoconfigure.AutoConfigureAfter;
 import org.springframework.boot.autoconfigure.AutoConfigureBefore;
 import org.springframework.boot.autoconfigure.condition.AnyNestedCondition;
@@ -46,6 +66,8 @@ import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingClas
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.boot.autoconfigure.condition.SearchStrategy;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
+import org.springframework.boot.health.autoconfigure.contributor.ConditionalOnEnabledHealthIndicator;
+import org.springframework.boot.health.contributor.Health;
 import org.springframework.cloud.autoconfigure.RefreshAutoConfiguration;
 import org.springframework.cloud.client.CommonsClientAutoConfiguration;
 import org.springframework.cloud.client.ConditionalOnDiscoveryEnabled;
@@ -67,6 +89,7 @@ import org.springframework.context.annotation.Conditional;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.context.annotation.Lazy;
 import org.springframework.core.env.ConfigurableEnvironment;
+import org.springframework.util.ClassUtils;
 import org.springframework.util.StringUtils;
 
 import static org.springframework.cloud.commons.util.IdUtils.getDefaultInstanceId;
@@ -80,6 +103,7 @@ import static org.springframework.cloud.commons.util.IdUtils.getDefaultInstanceI
  * @author Daniel Lavoie
  * @author Olga Maciaszek-Sharma
  * @author Tim Ysewyn
+ * @author Robert Bleyl
  */
 @Configuration(proxyBeanMethods = false)
 @EnableConfigurationProperties
@@ -93,7 +117,7 @@ import static org.springframework.cloud.commons.util.IdUtils.getDefaultInstanceI
 		"org.springframework.cloud.client.serviceregistry.AutoServiceRegistrationAutoConfiguration" })
 public class EurekaClientAutoConfiguration {
 
-	private ConfigurableEnvironment env;
+	private final ConfigurableEnvironment env;
 
 	public EurekaClientAutoConfiguration(ConfigurableEnvironment env) {
 		this.env = env;
@@ -201,8 +225,8 @@ public class EurekaClientAutoConfiguration {
 	}
 
 	@Bean
-	public EurekaServiceRegistry eurekaServiceRegistry() {
-		return new EurekaServiceRegistry();
+	public EurekaServiceRegistry eurekaServiceRegistry(EurekaInstanceConfigBean eurekaInstanceConfigBean) {
+		return new EurekaServiceRegistry(eurekaInstanceConfigBean);
 	}
 
 	// @Bean
@@ -234,13 +258,14 @@ public class EurekaClientAutoConfiguration {
 		@Autowired
 		private ApplicationContext context;
 
-		@Autowired
+		@Autowired(required = false)
 		private AbstractDiscoveryClientOptionalArgs<?> optionalArgs;
 
 		@Bean(destroyMethod = "shutdown")
 		@ConditionalOnMissingBean(value = EurekaClient.class, search = SearchStrategy.CURRENT)
-		public EurekaClient eurekaClient(ApplicationInfoManager manager, EurekaClientConfig config) {
-			return new CloudEurekaClient(manager, config, this.optionalArgs, this.context);
+		public EurekaClient eurekaClient(ApplicationInfoManager manager, EurekaClientConfig config,
+				TransportClientFactories<?> transportClientFactories) {
+			return new CloudEurekaClient(manager, config, transportClientFactories, this.optionalArgs, this.context);
 		}
 
 		@Bean
@@ -256,8 +281,11 @@ public class EurekaClientAutoConfiguration {
 		public EurekaRegistration eurekaRegistration(EurekaClient eurekaClient,
 				CloudEurekaInstanceConfig instanceConfig, ApplicationInfoManager applicationInfoManager,
 				@Autowired(required = false) ObjectProvider<HealthCheckHandler> healthCheckHandler) {
-			return EurekaRegistration.builder(instanceConfig).with(applicationInfoManager).with(eurekaClient)
-					.with(healthCheckHandler).build();
+			return EurekaRegistration.builder(instanceConfig)
+				.with(applicationInfoManager)
+				.with(eurekaClient)
+				.with(healthCheckHandler)
+				.build();
 		}
 
 	}
@@ -269,7 +297,7 @@ public class EurekaClientAutoConfiguration {
 		@Autowired
 		private ApplicationContext context;
 
-		@Autowired
+		@Autowired(required = false)
 		private AbstractDiscoveryClientOptionalArgs<?> optionalArgs;
 
 		@Bean(destroyMethod = "shutdown")
@@ -277,12 +305,13 @@ public class EurekaClientAutoConfiguration {
 		@org.springframework.cloud.context.config.annotation.RefreshScope
 		@Lazy
 		public EurekaClient eurekaClient(ApplicationInfoManager manager, EurekaClientConfig config,
-				EurekaInstanceConfig instance, @Autowired(required = false) HealthCheckHandler healthCheckHandler) {
+				EurekaInstanceConfig instance, TransportClientFactories<?> transportClientFactories,
+				@Autowired(required = false) HealthCheckHandler healthCheckHandler) {
 			// If we use the proxy of the ApplicationInfoManager we could run into a
 			// problem
 			// when shutdown is called on the CloudEurekaClient where the
 			// ApplicationInfoManager bean is
-			// requested but wont be allowed because we are shutting down. To avoid this
+			// requested but won't be allowed because we are shutting down. To avoid this
 			// we use the
 			// object directly.
 			ApplicationInfoManager appManager;
@@ -292,8 +321,8 @@ public class EurekaClientAutoConfiguration {
 			else {
 				appManager = manager;
 			}
-			CloudEurekaClient cloudEurekaClient = new CloudEurekaClient(appManager, config, this.optionalArgs,
-					this.context);
+			CloudEurekaClient cloudEurekaClient = new CloudEurekaClient(appManager, config, transportClientFactories,
+					this.optionalArgs, this.context);
 			cloudEurekaClient.registerHealthCheck(healthCheckHandler);
 			return cloudEurekaClient;
 		}
@@ -314,8 +343,11 @@ public class EurekaClientAutoConfiguration {
 		public EurekaRegistration eurekaRegistration(EurekaClient eurekaClient,
 				CloudEurekaInstanceConfig instanceConfig, ApplicationInfoManager applicationInfoManager,
 				@Autowired(required = false) ObjectProvider<HealthCheckHandler> healthCheckHandler) {
-			return EurekaRegistration.builder(instanceConfig).with(applicationInfoManager).with(eurekaClient)
-					.with(healthCheckHandler).build();
+			return EurekaRegistration.builder(instanceConfig)
+				.with(applicationInfoManager)
+				.with(eurekaClient)
+				.with(healthCheckHandler)
+				.build();
 		}
 
 	}
@@ -367,6 +399,7 @@ public class EurekaClientAutoConfiguration {
 
 		@Bean
 		@ConditionalOnMissingBean
+		@ConditionalOnClass(ConditionalOnEnabledHealthIndicator.class)
 		@ConditionalOnEnabledHealthIndicator("eureka")
 		public EurekaHealthIndicator eurekaHealthIndicator(EurekaClient eurekaClient,
 				EurekaInstanceConfig instanceConfig, EurekaClientConfig clientConfig) {
@@ -376,3 +409,39 @@ public class EurekaClientAutoConfiguration {
 	}
 
 }
+
+// Remove after adding hints to GraalVM reachability metadata repo
+class EurekaClientHints implements RuntimeHintsRegistrar {
+
+	@Override
+	public void registerHints(RuntimeHints hints, ClassLoader classLoader) {
+		if (!ClassUtils.isPresent("com.netflix.discovery.DiscoveryClient", classLoader)) {
+			return;
+		}
+		hints.reflection()
+			.registerTypes(TypeReference.listOf(ApplicationInfoManager.class),
+					hint -> hint.withMembers(MemberCategory.INTROSPECT_DECLARED_METHODS))
+			.registerTypes(
+					TypeReference.listOf(DiscoveryClient.class, EurekaHttpClientDecorator.class,
+							InstanceInfo.ActionType.class, InstanceInfoJsonMixIn.class, SessionedEurekaHttpClient.class,
+							RetryableEurekaHttpClient.class, AsyncResolver.class, Applications.class,
+							TimedSupervisorTask.class),
+					hint -> hint.withMembers(MemberCategory.DECLARED_FIELDS,
+							MemberCategory.INTROSPECT_DECLARED_METHODS))
+			.registerTypes(
+					TypeReference.listOf(EurekaEndpoint.class, EurekaHttpClientDecorator.RequestExecutor.class,
+							EurekaClient.class, DiscoveryClient.class),
+					hint -> hint.withMembers(MemberCategory.INVOKE_DECLARED_METHODS))
+			.registerTypes(TypeReference.listOf(DataCenterTypeInfoResolver.class),
+					hint -> hint.withMembers(MemberCategory.INVOKE_PUBLIC_CONSTRUCTORS))
+			.registerTypes(TypeReference.listOf(Application.class),
+					hint -> hint.withMembers(MemberCategory.DECLARED_FIELDS, MemberCategory.INTROSPECT_DECLARED_METHODS,
+							MemberCategory.INVOKE_PUBLIC_CONSTRUCTORS))
+			.registerTypes(TypeReference.listOf(DefaultEndpoint.class, EurekaHttpResponse.class, InstanceInfo.class,
+					InstanceInfo.PortWrapper.class, LeaseInfo.class, MyDataCenterInfo.class, DataCenterInfo.class,
+					DataCenterInfo.Name.class, ApplicationsJacksonBuilder.class, EurekaServiceInstance.class),
+					hint -> hint.withMembers(MemberCategory.DECLARED_FIELDS, MemberCategory.INVOKE_DECLARED_METHODS,
+							MemberCategory.INVOKE_DECLARED_CONSTRUCTORS));
+	}
+
+}

spring-cloud-netflix-eureka-client/src/main/java/org/springframework/cloud/netflix/eureka/EurekaClientConfigBean.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-present the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -25,6 +25,7 @@ import java.util.Objects;
 import com.netflix.appinfo.EurekaAccept;
 import com.netflix.discovery.EurekaClientConfig;
 import com.netflix.discovery.shared.transport.EurekaTransportConfig;
+import org.apache.hc.client5.http.classic.HttpClient;
 
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.context.properties.ConfigurationProperties;
@@ -40,6 +41,7 @@ import static org.springframework.cloud.netflix.eureka.EurekaConstants.DEFAULT_P
  *
  * @author Dave Syer
  * @author Gregor Zurowski
+ * @author Mooyong Lee
  */
 @ConfigurationProperties(EurekaClientConfigBean.PREFIX)
 public class EurekaClientConfigBean implements EurekaClientConfig, Ordered {
@@ -59,8 +61,6 @@ public class EurekaClientConfigBean implements EurekaClientConfig, Ordered {
 	 */
 	public static final String DEFAULT_ZONE = "defaultZone";
 
-	private static final int MINUTES = 60;
-
 	@Autowired(required = false)
 	PropertyResolver propertyResolver;
 
@@ -95,7 +95,7 @@ public class EurekaClientConfigBean implements EurekaClientConfig, Ordered {
 	 * Eureka servers could be added or removed and this setting controls how soon the
 	 * eureka clients should know about it.
 	 */
-	private int eurekaServiceUrlPollIntervalSeconds = 5 * MINUTES;
+	private int eurekaServiceUrlPollIntervalSeconds = 300; // 5 * MINUTES
 
 	/**
 	 * Gets the proxy port to eureka server if any.
@@ -126,14 +126,14 @@ public class EurekaClientConfigBean implements EurekaClientConfig, Ordered {
 	/**
 	 * Indicates how long to wait (in seconds) before a connection to eureka server needs
 	 * to timeout. Note that the connections in the client are pooled by
-	 * org.apache.http.client.HttpClient and this setting affects the actual connection
-	 * creation and also the wait time to get the connection from the pool.
+	 * {@link HttpClient} and this setting affects the actual connection creation and also
+	 * the wait time to get the connection from the pool.
 	 */
 	private int eurekaServerConnectTimeoutSeconds = 5;
 
 	/**
 	 * Gets the name of the implementation which implements BackupRegistry to fetch the
-	 * registry information as a fall back option for only the first time when the eureka
+	 * registry information as a fallback option for only the first time when the eureka
 	 * client starts.
 	 *
 	 * This may be needed for applications which needs additional resiliency for registry
@@ -472,7 +472,7 @@ public class EurekaClientConfigBean implements EurekaClientConfig, Ordered {
 		if (serviceUrls == null || serviceUrls.isEmpty()) {
 			serviceUrls = this.serviceUrl.get(DEFAULT_ZONE);
 		}
-		if (!StringUtils.isEmpty(serviceUrls)) {
+		if (StringUtils.hasText(serviceUrls)) {
 			final String[] serviceUrlsSplit = StringUtils.commaDelimitedListToStringArray(serviceUrls);
 			List<String> eurekaServiceUrls = new ArrayList<>(serviceUrlsSplit.length);
 			for (String eurekaServiceUrl : serviceUrlsSplit) {
@@ -997,47 +997,147 @@ public class EurekaClientConfigBean implements EurekaClientConfig, Ordered {
 
 	@Override
 	public String toString() {
-		return new StringBuilder("EurekaClientConfigBean{").append("propertyResolver=").append(propertyResolver)
-				.append(", ").append("enabled=").append(enabled).append(", ").append("transport=").append(transport)
-				.append(", ").append("registryFetchIntervalSeconds=").append(registryFetchIntervalSeconds).append(", ")
-				.append("instanceInfoReplicationIntervalSeconds=").append(instanceInfoReplicationIntervalSeconds)
-				.append(", ").append("initialInstanceInfoReplicationIntervalSeconds=")
-				.append(initialInstanceInfoReplicationIntervalSeconds).append(", ")
-				.append("eurekaServiceUrlPollIntervalSeconds=").append(eurekaServiceUrlPollIntervalSeconds).append(", ")
-				.append("proxyPort='").append(proxyPort).append("', ").append("proxyHost='").append(proxyHost)
-				.append("', ").append("proxyUserName='").append(proxyUserName).append("', ").append("proxyPassword='")
-				.append(proxyPassword).append("', ").append("eurekaServerReadTimeoutSeconds=")
-				.append(eurekaServerReadTimeoutSeconds).append(", ").append("eurekaServerConnectTimeoutSeconds=")
-				.append(eurekaServerConnectTimeoutSeconds).append(", ").append("backupRegistryImpl='")
-				.append(backupRegistryImpl).append("', ").append("eurekaServerTotalConnections=")
-				.append(eurekaServerTotalConnections).append(", ").append("eurekaServerTotalConnectionsPerHost=")
-				.append(eurekaServerTotalConnectionsPerHost).append(", ").append("eurekaServerURLContext='")
-				.append(eurekaServerURLContext).append("', ").append("eurekaServerPort='").append(eurekaServerPort)
-				.append("', ").append("eurekaServerDNSName='").append(eurekaServerDNSName).append("', ")
-				.append("region='").append(region).append("', ").append("eurekaConnectionIdleTimeoutSeconds=")
-				.append(eurekaConnectionIdleTimeoutSeconds).append(", ").append("registryRefreshSingleVipAddress='")
-				.append(registryRefreshSingleVipAddress).append("', ").append("heartbeatExecutorThreadPoolSize=")
-				.append(heartbeatExecutorThreadPoolSize).append(", ")
-				.append("heartbeatExecutorExponentialBackOffBound=").append(heartbeatExecutorExponentialBackOffBound)
-				.append(", ").append("cacheRefreshExecutorThreadPoolSize=").append(cacheRefreshExecutorThreadPoolSize)
-				.append(", ").append("cacheRefreshExecutorExponentialBackOffBound=")
-				.append(cacheRefreshExecutorExponentialBackOffBound).append(", ").append("serviceUrl=")
-				.append(serviceUrl).append(", ").append("gZipContent=").append(gZipContent).append(", ")
-				.append("useDnsForFetchingServiceUrls=").append(useDnsForFetchingServiceUrls).append(", ")
-				.append("registerWithEureka=").append(registerWithEureka).append(", ").append("preferSameZoneEureka=")
-				.append(preferSameZoneEureka).append(", ").append("logDeltaDiff=").append(logDeltaDiff).append(", ")
-				.append("disableDelta=").append(disableDelta).append(", ").append("fetchRemoteRegionsRegistry='")
-				.append(fetchRemoteRegionsRegistry).append("', ").append("availabilityZones=").append(availabilityZones)
-				.append(", ").append("filterOnlyUpInstances=").append(filterOnlyUpInstances).append(", ")
-				.append("fetchRegistry=").append(fetchRegistry).append(", ").append("dollarReplacement='")
-				.append(dollarReplacement).append("', ").append("escapeCharReplacement='").append(escapeCharReplacement)
-				.append("', ").append("allowRedirects=").append(allowRedirects).append(", ")
-				.append("onDemandUpdateStatusChange=").append(onDemandUpdateStatusChange).append(", ")
-				.append("encoderName='").append(encoderName).append("', ").append("decoderName='").append(decoderName)
-				.append("', ").append("clientDataAccept='").append(clientDataAccept).append("', ")
-				.append("shouldUnregisterOnShutdown='").append(shouldUnregisterOnShutdown)
-				.append("shouldEnforceRegistrationAtInit='").append(shouldEnforceRegistrationAtInit).append("', ")
-				.append("order='").append(order).append("'}").toString();
+		return new StringBuilder("EurekaClientConfigBean{").append("propertyResolver=")
+			.append(propertyResolver)
+			.append(", ")
+			.append("enabled=")
+			.append(enabled)
+			.append(", ")
+			.append("transport=")
+			.append(transport)
+			.append(", ")
+			.append("registryFetchIntervalSeconds=")
+			.append(registryFetchIntervalSeconds)
+			.append(", ")
+			.append("instanceInfoReplicationIntervalSeconds=")
+			.append(instanceInfoReplicationIntervalSeconds)
+			.append(", ")
+			.append("initialInstanceInfoReplicationIntervalSeconds=")
+			.append(initialInstanceInfoReplicationIntervalSeconds)
+			.append(", ")
+			.append("eurekaServiceUrlPollIntervalSeconds=")
+			.append(eurekaServiceUrlPollIntervalSeconds)
+			.append(", ")
+			.append("proxyPort='")
+			.append(proxyPort)
+			.append("', ")
+			.append("proxyHost='")
+			.append(proxyHost)
+			.append("', ")
+			.append("proxyUserName='")
+			.append(proxyUserName)
+			.append("', ")
+			.append("proxyPassword='")
+			.append(proxyPassword)
+			.append("', ")
+			.append("eurekaServerReadTimeoutSeconds=")
+			.append(eurekaServerReadTimeoutSeconds)
+			.append(", ")
+			.append("eurekaServerConnectTimeoutSeconds=")
+			.append(eurekaServerConnectTimeoutSeconds)
+			.append(", ")
+			.append("backupRegistryImpl='")
+			.append(backupRegistryImpl)
+			.append("', ")
+			.append("eurekaServerTotalConnections=")
+			.append(eurekaServerTotalConnections)
+			.append(", ")
+			.append("eurekaServerTotalConnectionsPerHost=")
+			.append(eurekaServerTotalConnectionsPerHost)
+			.append(", ")
+			.append("eurekaServerURLContext='")
+			.append(eurekaServerURLContext)
+			.append("', ")
+			.append("eurekaServerPort='")
+			.append(eurekaServerPort)
+			.append("', ")
+			.append("eurekaServerDNSName='")
+			.append(eurekaServerDNSName)
+			.append("', ")
+			.append("region='")
+			.append(region)
+			.append("', ")
+			.append("eurekaConnectionIdleTimeoutSeconds=")
+			.append(eurekaConnectionIdleTimeoutSeconds)
+			.append(", ")
+			.append("registryRefreshSingleVipAddress='")
+			.append(registryRefreshSingleVipAddress)
+			.append("', ")
+			.append("heartbeatExecutorThreadPoolSize=")
+			.append(heartbeatExecutorThreadPoolSize)
+			.append(", ")
+			.append("heartbeatExecutorExponentialBackOffBound=")
+			.append(heartbeatExecutorExponentialBackOffBound)
+			.append(", ")
+			.append("cacheRefreshExecutorThreadPoolSize=")
+			.append(cacheRefreshExecutorThreadPoolSize)
+			.append(", ")
+			.append("cacheRefreshExecutorExponentialBackOffBound=")
+			.append(cacheRefreshExecutorExponentialBackOffBound)
+			.append(", ")
+			.append("serviceUrl=")
+			.append(serviceUrl)
+			.append(", ")
+			.append("gZipContent=")
+			.append(gZipContent)
+			.append(", ")
+			.append("useDnsForFetchingServiceUrls=")
+			.append(useDnsForFetchingServiceUrls)
+			.append(", ")
+			.append("registerWithEureka=")
+			.append(registerWithEureka)
+			.append(", ")
+			.append("preferSameZoneEureka=")
+			.append(preferSameZoneEureka)
+			.append(", ")
+			.append("logDeltaDiff=")
+			.append(logDeltaDiff)
+			.append(", ")
+			.append("disableDelta=")
+			.append(disableDelta)
+			.append(", ")
+			.append("fetchRemoteRegionsRegistry='")
+			.append(fetchRemoteRegionsRegistry)
+			.append("', ")
+			.append("availabilityZones=")
+			.append(availabilityZones)
+			.append(", ")
+			.append("filterOnlyUpInstances=")
+			.append(filterOnlyUpInstances)
+			.append(", ")
+			.append("fetchRegistry=")
+			.append(fetchRegistry)
+			.append(", ")
+			.append("dollarReplacement='")
+			.append(dollarReplacement)
+			.append("', ")
+			.append("escapeCharReplacement='")
+			.append(escapeCharReplacement)
+			.append("', ")
+			.append("allowRedirects=")
+			.append(allowRedirects)
+			.append(", ")
+			.append("onDemandUpdateStatusChange=")
+			.append(onDemandUpdateStatusChange)
+			.append(", ")
+			.append("encoderName='")
+			.append(encoderName)
+			.append("', ")
+			.append("decoderName='")
+			.append(decoderName)
+			.append("', ")
+			.append("clientDataAccept='")
+			.append(clientDataAccept)
+			.append("', ")
+			.append("shouldUnregisterOnShutdown='")
+			.append(shouldUnregisterOnShutdown)
+			.append("shouldEnforceRegistrationAtInit='")
+			.append(shouldEnforceRegistrationAtInit)
+			.append("', ")
+			.append("order='")
+			.append(order)
+			.append("'}")
+			.toString();
 	}
 
 }

spring-cloud-netflix-eureka-client/src/main/java/org/springframework/cloud/netflix/eureka/EurekaConstants.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-present the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

spring-cloud-netflix-eureka-client/src/main/java/org/springframework/cloud/netflix/eureka/EurekaDiscoveryClient.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-present the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,6 +19,7 @@ package org.springframework.cloud.netflix.eureka;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
+import java.util.Locale;
 
 import com.netflix.appinfo.InstanceInfo;
 import com.netflix.discovery.EurekaClient;
@@ -35,6 +36,7 @@ import org.springframework.core.Ordered;
  *
  * @author Spencer Gibb
  * @author Tim Ysewyn
+ * @author Olga Maciaszek-Sharma
  */
 public class EurekaDiscoveryClient implements DiscoveryClient {
 
@@ -79,7 +81,7 @@ public class EurekaDiscoveryClient implements DiscoveryClient {
 			if (app.getInstances().isEmpty()) {
 				continue;
 			}
-			names.add(app.getName().toLowerCase());
+			names.add(app.getName().toLowerCase(Locale.ROOT));
 
 		}
 		return names;

spring-cloud-netflix-eureka-client/src/main/java/org/springframework/cloud/netflix/eureka/EurekaDiscoveryClientConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-present the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -21,12 +21,12 @@ import com.netflix.discovery.EurekaClient;
 import com.netflix.discovery.EurekaClientConfig;
 
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.boot.actuate.health.SimpleStatusAggregator;
-import org.springframework.boot.actuate.health.StatusAggregator;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
+import org.springframework.boot.health.actuate.endpoint.SimpleStatusAggregator;
+import org.springframework.boot.health.actuate.endpoint.StatusAggregator;
 import org.springframework.cloud.client.ConditionalOnBlockingDiscoveryEnabled;
 import org.springframework.cloud.client.ConditionalOnDiscoveryEnabled;
 import org.springframework.cloud.context.scope.refresh.RefreshScopeRefreshedEvent;
@@ -84,8 +84,9 @@ public class EurekaDiscoveryClientConfiguration {
 		private EurekaAutoServiceRegistration autoRegistration;
 
 		public void onApplicationEvent(RefreshScopeRefreshedEvent event) {
-			// This will force the creation of the EurkaClient bean if not already created
-			// to make sure the client will be reregistered after a refresh event
+			// This will force the creation of the EurekaClient bean if not already
+			// created
+			// to make sure the client will be re-registered after a refresh event
 			if (eurekaClient != null) {
 				eurekaClient.getApplications();
 			}

spring-cloud-netflix-eureka-client/src/main/java/org/springframework/cloud/netflix/eureka/EurekaHealthCheckHandler.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2021 the original author or authors.
+ * Copyright 2013-present the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,22 +19,27 @@ package org.springframework.cloud.netflix.eureka;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.Map;
-import java.util.Objects;
 import java.util.Set;
-import java.util.stream.Collectors;
 
 import com.netflix.appinfo.HealthCheckHandler;
 import com.netflix.appinfo.InstanceInfo;
 import com.netflix.appinfo.InstanceInfo.InstanceStatus;
-import reactor.core.publisher.Mono;
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
 
 import org.springframework.beans.BeansException;
 import org.springframework.beans.factory.InitializingBean;
-import org.springframework.boot.actuate.health.Health;
-import org.springframework.boot.actuate.health.HealthIndicator;
-import org.springframework.boot.actuate.health.ReactiveHealthIndicator;
-import org.springframework.boot.actuate.health.Status;
-import org.springframework.boot.actuate.health.StatusAggregator;
+import org.springframework.boot.health.actuate.endpoint.StatusAggregator;
+import org.springframework.boot.health.contributor.CompositeHealthContributor;
+import org.springframework.boot.health.contributor.CompositeReactiveHealthContributor;
+import org.springframework.boot.health.contributor.Health;
+import org.springframework.boot.health.contributor.HealthContributor;
+import org.springframework.boot.health.contributor.HealthContributors;
+import org.springframework.boot.health.contributor.HealthIndicator;
+import org.springframework.boot.health.contributor.ReactiveHealthContributor;
+import org.springframework.boot.health.contributor.ReactiveHealthContributors;
+import org.springframework.boot.health.contributor.ReactiveHealthIndicator;
+import org.springframework.boot.health.contributor.Status;
 import org.springframework.cloud.client.discovery.health.DiscoveryCompositeHealthContributor;
 import org.springframework.context.ApplicationContext;
 import org.springframework.context.ApplicationContextAware;
@@ -58,33 +63,36 @@ import org.springframework.util.Assert;
  * @author Spencer Gibb
  * @author Nowrin Anwar Joyita
  * @author Bertrand Renuart
+ * @author Olga Maciaszek-Sharma
  * @see HealthCheckHandler
  * @see StatusAggregator
  */
 public class EurekaHealthCheckHandler
 		implements HealthCheckHandler, ApplicationContextAware, InitializingBean, Ordered, Lifecycle {
 
-	private static final Map<Status, InstanceInfo.InstanceStatus> STATUS_MAPPING = new HashMap<Status, InstanceInfo.InstanceStatus>() {
+	private static final Log log = LogFactory.getLog(EurekaHealthCheckHandler.class);
+
+	private static final Map<Status, InstanceInfo.InstanceStatus> STATUS_MAPPING = new HashMap<>() {
 		{
 			put(Status.UNKNOWN, InstanceStatus.UNKNOWN);
-			put(Status.OUT_OF_SERVICE, InstanceStatus.OUT_OF_SERVICE);
+			put(Status.OUT_OF_SERVICE, InstanceStatus.DOWN);
 			put(Status.DOWN, InstanceStatus.DOWN);
 			put(Status.UP, InstanceStatus.UP);
 		}
 	};
 
-	private StatusAggregator statusAggregator;
+	private final StatusAggregator statusAggregator;
 
 	private ApplicationContext applicationContext;
 
-	private Map<String, HealthIndicator> healthIndicators = new HashMap<>();
+	private final Map<String, HealthContributor> healthContributors = new HashMap<>();
 
 	/**
 	 * {@code true} until the context is stopped.
 	 */
 	private boolean running = true;
 
-	private Map<String, ReactiveHealthIndicator> reactiveHealthIndicators = new HashMap<>();
+	private final Map<String, ReactiveHealthContributor> reactiveHealthContributors = new HashMap<>();
 
 	public EurekaHealthCheckHandler(StatusAggregator statusAggregator) {
 		this.statusAggregator = statusAggregator;
@@ -99,43 +107,35 @@ public class EurekaHealthCheckHandler
 
 	@Override
 	public void afterPropertiesSet() {
-		final Map<String, HealthIndicator> healthIndicators = applicationContext.getBeansOfType(HealthIndicator.class);
-		final Map<String, ReactiveHealthIndicator> reactiveHealthIndicators = applicationContext
-				.getBeansOfType(ReactiveHealthIndicator.class);
-
-		populateHealthIndicators(healthIndicators);
-		populateReactiveHealthIndicators(reactiveHealthIndicators);
+		populateHealthContributors(applicationContext.getBeansOfType(HealthContributor.class));
+		reactiveHealthContributors.putAll(applicationContext.getBeansOfType(ReactiveHealthContributor.class));
 	}
 
-	void populateHealthIndicators(Map<String, HealthIndicator> healthIndicators) {
-		for (Map.Entry<String, HealthIndicator> entry : healthIndicators.entrySet()) {
+	void populateHealthContributors(Map<String, HealthContributor> healthContributors) {
+		for (Map.Entry<String, HealthContributor> entry : healthContributors.entrySet()) {
 			// ignore EurekaHealthIndicator and flatten the rest of the composite
 			// otherwise there is a never ending cycle of down. See gh-643
-			if (entry.getValue() instanceof DiscoveryCompositeHealthContributor) {
-				DiscoveryCompositeHealthContributor indicator = (DiscoveryCompositeHealthContributor) entry.getValue();
-				indicator.forEach(contributor -> {
-					if (!(contributor.getContributor() instanceof EurekaHealthIndicator)) {
-						this.healthIndicators.put(contributor.getName(),
-								(HealthIndicator) contributor.getContributor());
+			if (entry.getValue() instanceof DiscoveryCompositeHealthContributor indicator) {
+				indicator.getIndicators().forEach((name, discoveryHealthIndicator) -> {
+					if (!(discoveryHealthIndicator instanceof EurekaHealthIndicator)) {
+						this.healthContributors.put(name, (HealthIndicator) discoveryHealthIndicator::health);
 					}
 				});
 			}
 			else {
-				this.healthIndicators.put(entry.getKey(), entry.getValue());
+				this.healthContributors.put(entry.getKey(), entry.getValue());
 			}
 		}
 	}
 
-	void populateReactiveHealthIndicators(Map<String, ReactiveHealthIndicator> reactiveHealthIndicators) {
-		for (Map.Entry<String, ReactiveHealthIndicator> entry : reactiveHealthIndicators.entrySet()) {
-			this.reactiveHealthIndicators.put(entry.getKey(), entry.getValue());
-		}
-	}
-
 	@Override
 	public InstanceStatus getStatus(InstanceStatus instanceStatus) {
 		if (running) {
-			return getHealthStatus();
+			InstanceStatus status = getHealthStatus();
+			if (status != instanceStatus) {
+				log.info("Eureka health status changed to " + status);
+			}
+			return status;
 		}
 		else {
 			// Return nothing if the context is not running, so the status held by the
@@ -151,21 +151,43 @@ public class EurekaHealthCheckHandler
 	}
 
 	protected Status getStatus(StatusAggregator statusAggregator) {
-		Status status;
-
-		Set<Status> statusSet = new HashSet<>();
-		if (healthIndicators != null) {
-			statusSet.addAll(healthIndicators.values().stream().map(HealthIndicator::health).map(Health::getStatus)
-					.collect(Collectors.toSet()));
+		Set<Status> statuses = new HashSet<>();
+		for (Map.Entry<String, HealthContributor> entry : healthContributors.entrySet()) {
+			processContributor(statuses, entry.getKey(), entry.getValue());
 		}
-
-		if (reactiveHealthIndicators != null) {
-			statusSet.addAll(reactiveHealthIndicators.values().stream().map(ReactiveHealthIndicator::health)
-					.map(Mono::block).filter(Objects::nonNull).map(Health::getStatus).collect(Collectors.toSet()));
+		for (Map.Entry<String, ReactiveHealthContributor> entry : reactiveHealthContributors.entrySet()) {
+			processContributor(statuses, entry.getKey(), entry.getValue());
 		}
+		return statusAggregator.getAggregateStatus(statuses);
+	}
 
-		status = statusAggregator.getAggregateStatus(statusSet);
-		return status;
+	private void processContributor(Set<Status> statuses, String name, HealthContributor contributor) {
+		if (contributor instanceof CompositeHealthContributor) {
+			for (HealthContributors.Entry contrib : (CompositeHealthContributor) contributor) {
+				processContributor(statuses, contrib.name(), contrib.contributor());
+			}
+		}
+		else if (contributor instanceof HealthIndicator) {
+			Status status = ((HealthIndicator) contributor).health().getStatus();
+			log.debug("Health contributor " + name + " has status " + status);
+			statuses.add(status);
+		}
+	}
+
+	private void processContributor(Set<Status> statuses, String name, ReactiveHealthContributor contributor) {
+		if (contributor instanceof CompositeReactiveHealthContributor) {
+			for (ReactiveHealthContributors.Entry contrib : (CompositeReactiveHealthContributor) contributor) {
+				processContributor(statuses, contrib.name(), contrib.contributor());
+			}
+		}
+		else if (contributor instanceof ReactiveHealthIndicator) {
+			Health health = ((ReactiveHealthIndicator) contributor).health().block();
+			if (health != null) {
+				Status status = health.getStatus();
+				log.debug("Health contributor " + name + " has status " + status);
+				statuses.add(status);
+			}
+		}
 	}
 
 	protected InstanceStatus mapToInstanceStatus(Status status) {

spring-cloud-netflix-eureka-client/src/main/java/org/springframework/cloud/netflix/eureka/EurekaHealthIndicator.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-present the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -28,9 +28,9 @@ import com.netflix.discovery.shared.Application;
 import com.netflix.discovery.shared.Applications;
 
 import org.springframework.aop.support.AopUtils;
-import org.springframework.boot.actuate.health.Health;
-import org.springframework.boot.actuate.health.Health.Builder;
-import org.springframework.boot.actuate.health.Status;
+import org.springframework.boot.health.contributor.Health;
+import org.springframework.boot.health.contributor.Health.Builder;
+import org.springframework.boot.health.contributor.Status;
 import org.springframework.cloud.client.discovery.health.DiscoveryHealthIndicator;
 import org.springframework.cloud.util.ProxyUtils;
 
@@ -92,7 +92,7 @@ public class EurekaHealthIndicator implements DiscoveryHealthIndicator {
 		if (AopUtils.isAopProxy(eurekaClient)) {
 			discoveryClient = ProxyUtils.getTargetObject(eurekaClient);
 		}
-		else if (DiscoveryClient.class.isInstance(eurekaClient)) {
+		else if (eurekaClient instanceof DiscoveryClient) {
 			discoveryClient = (DiscoveryClient) eurekaClient;
 		}
 		return discoveryClient;

spring-cloud-netflix-eureka-client/src/main/java/org/springframework/cloud/netflix/eureka/EurekaInstanceConfigBean.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-present the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -25,6 +25,7 @@ import com.netflix.appinfo.DataCenterInfo;
 import com.netflix.appinfo.InstanceInfo.InstanceStatus;
 import com.netflix.appinfo.MyDataCenterInfo;
 
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.context.properties.ConfigurationProperties;
 import org.springframework.cloud.commons.util.InetUtils;
 import org.springframework.cloud.commons.util.InetUtils.HostInfo;
@@ -37,6 +38,7 @@ import org.springframework.util.StringUtils;
  * @author Spencer Gibb
  * @author Ryan Baxter
  * @author Gregor Zurowski
+ * @author Robert Bleyl
  */
 @ConfigurationProperties("eureka.instance")
 public class EurekaInstanceConfigBean implements CloudEurekaInstanceConfig, EnvironmentAware {
@@ -109,7 +111,7 @@ public class EurekaInstanceConfigBean implements CloudEurekaInstanceConfig, Envi
 	 * Setting this value too long could mean that the traffic could be routed to the
 	 * instance even though the instance is not alive. Setting this value too small could
 	 * mean, the instance may be taken out of traffic because of temporary network
-	 * glitches.This value to be set to atleast higher than the value specified in
+	 * glitches.This value to be set to at least higher than the value specified in
 	 * leaseRenewalIntervalInSeconds.
 	 */
 	private int leaseExpirationDurationInSeconds = 90;
@@ -167,7 +169,7 @@ public class EurekaInstanceConfigBean implements CloudEurekaInstanceConfig, Envi
 	/**
 	 * Gets the relative status page URL path for this instance. The status page URL is
 	 * then constructed out of the hostName and the type of communication - secure or
-	 * unsecure as specified in securePort and nonSecurePort.
+	 * insecure as specified in securePort and nonSecurePort.
 	 *
 	 * It is normally used for informational purposes for other services to find about the
 	 * status of this instance. Users can provide a simple HTML indicating what is the
@@ -189,7 +191,7 @@ public class EurekaInstanceConfigBean implements CloudEurekaInstanceConfig, Envi
 
 	/**
 	 * Gets the relative home page URL Path for this instance. The home page URL is then
-	 * constructed out of the hostName and the type of communication - secure or unsecure.
+	 * constructed out of the hostName and the type of communication - secure or insecure.
 	 *
 	 * It is normally used for informational purposes for other services to use it as a
 	 * landing page.
@@ -211,7 +213,7 @@ public class EurekaInstanceConfigBean implements CloudEurekaInstanceConfig, Envi
 	/**
 	 * Gets the relative health check URL path for this instance. The health check page
 	 * URL is then constructed out of the hostname and the type of communication - secure
-	 * or unsecure as specified in securePort and nonSecurePort.
+	 * or insecure as specified in securePort and nonSecurePort.
 	 *
 	 * It is normally used for making educated decisions based on the health of the
 	 * instance - for example, it can be used to determine whether to proceed deployments
@@ -268,6 +270,12 @@ public class EurekaInstanceConfigBean implements CloudEurekaInstanceConfig, Envi
 	 */
 	private boolean preferIpAddress = false;
 
+	/**
+	 * If true the EurekaClient will be initialized asynchronously when the
+	 * InstanceRegistry bean is created.
+	 */
+	private boolean asyncClientInitialization;
+
 	/**
 	 * Initial status to register with remote Eureka server.
 	 */
@@ -285,6 +293,7 @@ public class EurekaInstanceConfigBean implements CloudEurekaInstanceConfig, Envi
 	private EurekaInstanceConfigBean() {
 	}
 
+	@Autowired
 	public EurekaInstanceConfigBean(InetUtils inetUtils) {
 		this.inetUtils = inetUtils;
 		this.hostInfo = this.inetUtils.findFirstNonLoopbackHostInfo();
@@ -545,6 +554,14 @@ public class EurekaInstanceConfigBean implements CloudEurekaInstanceConfig, Envi
 		this.preferIpAddress = preferIpAddress;
 	}
 
+	public boolean isAsyncClientInitialization() {
+		return asyncClientInitialization;
+	}
+
+	public void setAsyncClientInitialization(boolean asyncClientInitialization) {
+		this.asyncClientInitialization = asyncClientInitialization;
+	}
+
 	public InstanceStatus getInitialStatus() {
 		return initialStatus;
 	}
@@ -595,6 +612,7 @@ public class EurekaInstanceConfigBean implements CloudEurekaInstanceConfig, Envi
 				&& Objects.equals(namespace, that.namespace) && Objects.equals(hostname, that.hostname)
 				&& preferIpAddress == that.preferIpAddress && Objects.equals(initialStatus, that.initialStatus)
 				&& Arrays.equals(defaultAddressResolutionOrder, that.defaultAddressResolutionOrder)
+				&& asyncClientInitialization == that.asyncClientInitialization
 				&& Objects.equals(environment, that.environment);
 	}
 
@@ -605,34 +623,109 @@ public class EurekaInstanceConfigBean implements CloudEurekaInstanceConfig, Envi
 				leaseExpirationDurationInSeconds, virtualHostName, instanceId, secureVirtualHostName, aSGName,
 				metadataMap, dataCenterInfo, ipAddress, statusPageUrlPath, statusPageUrl, homePageUrlPath, homePageUrl,
 				healthCheckUrlPath, healthCheckUrl, secureHealthCheckUrl, namespace, hostname, preferIpAddress,
-				initialStatus, defaultAddressResolutionOrder, environment);
+				asyncClientInitialization, initialStatus, Arrays.hashCode(defaultAddressResolutionOrder), environment);
 	}
 
 	@Override
 	public String toString() {
-		return new StringBuilder("EurekaInstanceConfigBean{").append("hostInfo=").append(hostInfo).append(", ")
-				.append("inetUtils=").append(inetUtils).append(", ").append("appname='").append(appname).append("', ")
-				.append("appGroupName='").append(appGroupName).append("', ").append("instanceEnabledOnit=")
-				.append(instanceEnabledOnit).append(", ").append("nonSecurePort=").append(nonSecurePort).append(", ")
-				.append("securePort=").append(securePort).append(", ").append("nonSecurePortEnabled=")
-				.append(nonSecurePortEnabled).append(", ").append("securePortEnabled=").append(securePortEnabled)
-				.append(", ").append("leaseRenewalIntervalInSeconds=").append(leaseRenewalIntervalInSeconds)
-				.append(", ").append("leaseExpirationDurationInSeconds=").append(leaseExpirationDurationInSeconds)
-				.append(", ").append("virtualHostName='").append(virtualHostName).append("', ").append("instanceId='")
-				.append(instanceId).append("', ").append("secureVirtualHostName='").append(secureVirtualHostName)
-				.append("', ").append("aSGName='").append(aSGName).append("', ").append("metadataMap=")
-				.append(metadataMap).append(", ").append("dataCenterInfo=").append(dataCenterInfo).append(", ")
-				.append("ipAddress='").append(ipAddress).append("', ").append("statusPageUrlPath='")
-				.append(statusPageUrlPath).append("', ").append("statusPageUrl='").append(statusPageUrl).append("', ")
-				.append("homePageUrlPath='").append(homePageUrlPath).append("', ").append("homePageUrl='")
-				.append(homePageUrl).append("', ").append("healthCheckUrlPath='").append(healthCheckUrlPath)
-				.append("', ").append("healthCheckUrl='").append(healthCheckUrl).append("', ")
-				.append("secureHealthCheckUrl='").append(secureHealthCheckUrl).append("', ").append("namespace='")
-				.append(namespace).append("', ").append("hostname='").append(hostname).append("', ")
-				.append("preferIpAddress=").append(preferIpAddress).append(", ").append("initialStatus=")
-				.append(initialStatus).append(", ").append("defaultAddressResolutionOrder=")
-				.append(Arrays.toString(defaultAddressResolutionOrder)).append(", ").append("environment=")
-				.append(environment).append(", ").append("}").toString();
+		return new StringBuilder("EurekaInstanceConfigBean{").append("hostInfo=")
+			.append(hostInfo)
+			.append(", ")
+			.append("inetUtils=")
+			.append(inetUtils)
+			.append(", ")
+			.append("appname='")
+			.append(appname)
+			.append("', ")
+			.append("appGroupName='")
+			.append(appGroupName)
+			.append("', ")
+			.append("instanceEnabledOnit=")
+			.append(instanceEnabledOnit)
+			.append(", ")
+			.append("nonSecurePort=")
+			.append(nonSecurePort)
+			.append(", ")
+			.append("securePort=")
+			.append(securePort)
+			.append(", ")
+			.append("nonSecurePortEnabled=")
+			.append(nonSecurePortEnabled)
+			.append(", ")
+			.append("securePortEnabled=")
+			.append(securePortEnabled)
+			.append(", ")
+			.append("leaseRenewalIntervalInSeconds=")
+			.append(leaseRenewalIntervalInSeconds)
+			.append(", ")
+			.append("leaseExpirationDurationInSeconds=")
+			.append(leaseExpirationDurationInSeconds)
+			.append(", ")
+			.append("virtualHostName='")
+			.append(virtualHostName)
+			.append("', ")
+			.append("instanceId='")
+			.append(instanceId)
+			.append("', ")
+			.append("secureVirtualHostName='")
+			.append(secureVirtualHostName)
+			.append("', ")
+			.append("aSGName='")
+			.append(aSGName)
+			.append("', ")
+			.append("metadataMap=")
+			.append(metadataMap)
+			.append(", ")
+			.append("dataCenterInfo=")
+			.append(dataCenterInfo)
+			.append(", ")
+			.append("ipAddress='")
+			.append(ipAddress)
+			.append("', ")
+			.append("statusPageUrlPath='")
+			.append(statusPageUrlPath)
+			.append("', ")
+			.append("statusPageUrl='")
+			.append(statusPageUrl)
+			.append("', ")
+			.append("homePageUrlPath='")
+			.append(homePageUrlPath)
+			.append("', ")
+			.append("homePageUrl='")
+			.append(homePageUrl)
+			.append("', ")
+			.append("healthCheckUrlPath='")
+			.append(healthCheckUrlPath)
+			.append("', ")
+			.append("healthCheckUrl='")
+			.append(healthCheckUrl)
+			.append("', ")
+			.append("secureHealthCheckUrl='")
+			.append(secureHealthCheckUrl)
+			.append("', ")
+			.append("namespace='")
+			.append(namespace)
+			.append("', ")
+			.append("hostname='")
+			.append(hostname)
+			.append("', ")
+			.append("asyncClientInitialization=")
+			.append(asyncClientInitialization)
+			.append(", ")
+			.append("preferIpAddress=")
+			.append(preferIpAddress)
+			.append(", ")
+			.append("initialStatus=")
+			.append(initialStatus)
+			.append(", ")
+			.append("defaultAddressResolutionOrder=")
+			.append(Arrays.toString(defaultAddressResolutionOrder))
+			.append(", ")
+			.append("environment=")
+			.append(environment)
+			.append(", ")
+			.append("}")
+			.toString();
 	}
 
 }

spring-cloud-netflix-eureka-client/src/main/java/org/springframework/cloud/netflix/eureka/EurekaServiceInstance.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-present the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,7 +22,6 @@ import java.util.Objects;
 
 import com.netflix.appinfo.InstanceInfo;
 
-import org.springframework.cloud.client.DefaultServiceInstance;
 import org.springframework.cloud.client.ServiceInstance;
 import org.springframework.core.style.ToStringCreator;
 import org.springframework.util.Assert;
@@ -39,7 +38,7 @@ import static com.netflix.appinfo.InstanceInfo.PortType.SECURE;
  */
 public class EurekaServiceInstance implements ServiceInstance {
 
-	private InstanceInfo instance;
+	private final InstanceInfo instance;
 
 	public EurekaServiceInstance(InstanceInfo instance) {
 		Assert.notNull(instance, "Service instance required");
@@ -81,7 +80,7 @@ public class EurekaServiceInstance implements ServiceInstance {
 
 	@Override
 	public URI getUri() {
-		return DefaultServiceInstance.getUri(this);
+		return ServiceInstance.createUri(this);
 	}
 
 	@Override

spring-cloud-netflix-eureka-client/src/main/java/org/springframework/cloud/netflix/eureka/InstanceInfoFactory.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-present the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -35,8 +35,8 @@ public class InstanceInfoFactory {
 
 	public InstanceInfo create(EurekaInstanceConfig config) {
 		LeaseInfo.Builder leaseInfoBuilder = LeaseInfo.Builder.newBuilder()
-				.setRenewalIntervalInSecs(config.getLeaseRenewalIntervalInSeconds())
-				.setDurationInSecs(config.getLeaseExpirationDurationInSeconds());
+			.setRenewalIntervalInSecs(config.getLeaseRenewalIntervalInSeconds())
+			.setDurationInSecs(config.getLeaseExpirationDurationInSeconds());
 
 		// Builder the instance information to be registered with eureka
 		// server
@@ -46,19 +46,24 @@ public class InstanceInfoFactory {
 		if (!namespace.endsWith(".")) {
 			namespace = namespace + ".";
 		}
-		builder.setNamespace(namespace).setAppName(config.getAppname()).setInstanceId(config.getInstanceId())
-				.setAppGroupName(config.getAppGroupName()).setDataCenterInfo(config.getDataCenterInfo())
-				.setIPAddr(config.getIpAddress()).setHostName(config.getHostName(false))
-				.setPort(config.getNonSecurePort())
-				.enablePort(InstanceInfo.PortType.UNSECURE, config.isNonSecurePortEnabled())
-				.setSecurePort(config.getSecurePort())
-				.enablePort(InstanceInfo.PortType.SECURE, config.getSecurePortEnabled())
-				.setVIPAddress(config.getVirtualHostName()).setSecureVIPAddress(config.getSecureVirtualHostName())
-				.setHomePageUrl(config.getHomePageUrlPath(), config.getHomePageUrl())
-				.setStatusPageUrl(config.getStatusPageUrlPath(), config.getStatusPageUrl())
-				.setHealthCheckUrls(config.getHealthCheckUrlPath(), config.getHealthCheckUrl(),
-						config.getSecureHealthCheckUrl())
-				.setASGName(config.getASGName());
+		builder.setNamespace(namespace)
+			.setAppName(config.getAppname())
+			.setInstanceId(config.getInstanceId())
+			.setAppGroupName(config.getAppGroupName())
+			.setDataCenterInfo(config.getDataCenterInfo())
+			.setIPAddr(config.getIpAddress())
+			.setHostName(config.getHostName(false))
+			.setPort(config.getNonSecurePort())
+			.enablePort(InstanceInfo.PortType.UNSECURE, config.isNonSecurePortEnabled())
+			.setSecurePort(config.getSecurePort())
+			.enablePort(InstanceInfo.PortType.SECURE, config.getSecurePortEnabled())
+			.setVIPAddress(config.getVirtualHostName())
+			.setSecureVIPAddress(config.getSecureVirtualHostName())
+			.setHomePageUrl(config.getHomePageUrlPath(), config.getHomePageUrl())
+			.setStatusPageUrl(config.getStatusPageUrlPath(), config.getStatusPageUrl())
+			.setHealthCheckUrls(config.getHealthCheckUrlPath(), config.getHealthCheckUrl(),
+					config.getSecureHealthCheckUrl())
+			.setASGName(config.getASGName());
 
 		// Start off with the STARTING state to avoid traffic
 		if (!config.isInstanceEnabledOnit()) {

spring-cloud-netflix-eureka-client/src/main/java/org/springframework/cloud/netflix/eureka/MutableDiscoveryClientOptionalArgs.java

@@ -1,43 +0,0 @@
-/*
- * Copyright 2013-2020 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.springframework.cloud.netflix.eureka;
-
-import java.util.Collection;
-import java.util.LinkedHashSet;
-
-import com.netflix.discovery.DiscoveryClient.DiscoveryClientOptionalArgs;
-import com.sun.jersey.api.client.filter.ClientFilter;
-
-/**
- * @author Dave Syer
- */
-public class MutableDiscoveryClientOptionalArgs extends DiscoveryClientOptionalArgs {
-
-	private Collection<ClientFilter> additionalFilters;
-
-	@Override
-	public void setAdditionalFilters(Collection<ClientFilter> additionalFilters) {
-		additionalFilters = new LinkedHashSet<>(additionalFilters);
-		this.additionalFilters = additionalFilters;
-		super.setAdditionalFilters(additionalFilters);
-	}
-
-	public Collection<ClientFilter> getAdditionalFilters() {
-		return this.additionalFilters;
-	}
-
-}

spring-cloud-netflix-eureka-client/src/main/java/org/springframework/cloud/netflix/eureka/TimeoutProperties.java

@@ -0,0 +1,94 @@
+/*
+ * Copyright 2013-present the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.cloud.netflix.eureka;
+
+import java.util.Objects;
+
+import com.netflix.discovery.shared.transport.EurekaHttpClient;
+import org.apache.hc.client5.http.config.RequestConfig;
+import org.apache.hc.core5.http.io.SocketConfig;
+
+import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.web.client.RestClient;
+
+/**
+ * Properties for configuring timeouts used in {@link RestClient} required by
+ * {@link EurekaHttpClient}.
+ *
+ * @author Jiwon Jeon
+ * @author Mooyong Lee
+ * @author Olga Maciaszek-Sharma
+ * @since 4.2.0
+ */
+@ConfigurationProperties("eureka.client.timeout")
+public class TimeoutProperties {
+
+	/**
+	 * Default values are set to 180000, in keeping with {@link RequestConfig} and
+	 * {@link SocketConfig} defaults.
+	 */
+	protected int connectTimeout = 180000; // 3 * MINUTES
+
+	protected int connectRequestTimeout = 180000; // 3 * MINUTES
+
+	protected int socketTimeout = 180000; // 3 * MINUTES
+
+	public int getConnectTimeout() {
+		return connectTimeout;
+	}
+
+	public int getConnectRequestTimeout() {
+		return connectRequestTimeout;
+	}
+
+	public int getSocketTimeout() {
+		return socketTimeout;
+	}
+
+	public void setConnectTimeout(int connectTimeout) {
+		this.connectTimeout = connectTimeout;
+	}
+
+	public void setConnectRequestTimeout(int connectRequestTimeout) {
+		this.connectRequestTimeout = connectRequestTimeout;
+	}
+
+	public void setSocketTimeout(int socketTimeout) {
+		this.socketTimeout = socketTimeout;
+	}
+
+	@Override
+	public boolean equals(Object o) {
+		if (this == o) {
+			return true;
+		}
+		if (o == null || getClass() != o.getClass()) {
+			return false;
+		}
+
+		TimeoutProperties that = (TimeoutProperties) o;
+
+		return connectTimeout == that.connectTimeout && connectRequestTimeout == that.connectRequestTimeout
+				&& socketTimeout == that.socketTimeout;
+	}
+
+	@Override
+	public int hashCode() {
+		return Objects.hash(connectTimeout, connectRequestTimeout, socketTimeout);
+	}
+
+}

spring-cloud-netflix-eureka-client/src/main/java/org/springframework/cloud/netflix/eureka/config/DiscoveryClientOptionalArgsConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2020 the original author or authors.
+ * Copyright 2017-present the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,37 +18,50 @@ package org.springframework.cloud.netflix.eureka.config;
 
 import java.io.IOException;
 import java.security.GeneralSecurityException;
+import java.util.Set;
 
 import com.netflix.discovery.AbstractDiscoveryClientOptionalArgs;
+import com.netflix.discovery.shared.transport.jersey.TransportClientFactories;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 
 import org.springframework.beans.factory.ObjectProvider;
-import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.autoconfigure.condition.AllNestedConditions;
+import org.springframework.boot.autoconfigure.condition.AnyNestedCondition;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingClass;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.boot.autoconfigure.condition.SearchStrategy;
 import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.boot.context.properties.EnableConfigurationProperties;
 import org.springframework.cloud.configuration.SSLContextFactory;
 import org.springframework.cloud.configuration.TlsProperties;
-import org.springframework.cloud.netflix.eureka.MutableDiscoveryClientOptionalArgs;
+import org.springframework.cloud.netflix.eureka.TimeoutProperties;
 import org.springframework.cloud.netflix.eureka.http.DefaultEurekaClientHttpRequestFactorySupplier;
 import org.springframework.cloud.netflix.eureka.http.EurekaClientHttpRequestFactorySupplier;
-import org.springframework.cloud.netflix.eureka.http.RestTemplateDiscoveryClientOptionalArgs;
+import org.springframework.cloud.netflix.eureka.http.RestClientDiscoveryClientOptionalArgs;
+import org.springframework.cloud.netflix.eureka.http.RestClientTransportClientFactories;
 import org.springframework.cloud.netflix.eureka.http.WebClientDiscoveryClientOptionalArgs;
+import org.springframework.cloud.netflix.eureka.http.WebClientTransportClientFactories;
 import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Conditional;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.web.client.RestClient;
 import org.springframework.web.reactive.function.client.WebClient;
 
 /**
  * @author Daniel Lavoie
+ * @author Armin Krezovic
+ * @author Olga Maciaszek-Sharma
+ * @author Wonchul Heo
  */
 @Configuration(proxyBeanMethods = false)
+@EnableConfigurationProperties({ TimeoutProperties.class })
 public class DiscoveryClientOptionalArgsConfiguration {
 
-	protected static final Log logger = LogFactory.getLog(DiscoveryClientOptionalArgsConfiguration.class);
+	protected static final Log LOG = LogFactory.getLog(DiscoveryClientOptionalArgsConfiguration.class);
 
 	@Bean
 	@ConfigurationProperties("eureka.client.tls")
@@ -56,41 +69,8 @@ public class DiscoveryClientOptionalArgsConfiguration {
 		return new TlsProperties();
 	}
 
-	@Bean
-	@ConditionalOnClass(name = "org.springframework.web.client.RestTemplate")
-	@ConditionalOnMissingClass("com.sun.jersey.api.client.filter.ClientFilter")
-	@ConditionalOnMissingBean(value = { AbstractDiscoveryClientOptionalArgs.class }, search = SearchStrategy.CURRENT)
-	@ConditionalOnProperty(prefix = "eureka.client", name = "webclient.enabled", matchIfMissing = true,
-			havingValue = "false")
-	public RestTemplateDiscoveryClientOptionalArgs restTemplateDiscoveryClientOptionalArgs(TlsProperties tlsProperties,
-			EurekaClientHttpRequestFactorySupplier eurekaClientHttpRequestFactorySupplier)
-			throws GeneralSecurityException, IOException {
-		logger.info("Eureka HTTP Client uses RestTemplate.");
-		RestTemplateDiscoveryClientOptionalArgs result = new RestTemplateDiscoveryClientOptionalArgs(
-				eurekaClientHttpRequestFactorySupplier);
-		setupTLS(result, tlsProperties);
-		return result;
-	}
-
-	@Bean
-	@ConditionalOnMissingBean
-	@ConditionalOnClass(name = "org.springframework.web.client.RestTemplate")
-	EurekaClientHttpRequestFactorySupplier defaultEurekaClientHttpRequestFactorySupplier() {
-		return new DefaultEurekaClientHttpRequestFactorySupplier();
-	}
-
-	@Bean
-	@ConditionalOnClass(name = "com.sun.jersey.api.client.filter.ClientFilter")
-	@ConditionalOnMissingBean(value = AbstractDiscoveryClientOptionalArgs.class, search = SearchStrategy.CURRENT)
-	public MutableDiscoveryClientOptionalArgs discoveryClientOptionalArgs(TlsProperties tlsProperties)
-			throws GeneralSecurityException, IOException {
-		logger.info("Eureka HTTP Client uses Jersey");
-		MutableDiscoveryClientOptionalArgs result = new MutableDiscoveryClientOptionalArgs();
-		setupTLS(result, tlsProperties);
-		return result;
-	}
-
-	private static void setupTLS(AbstractDiscoveryClientOptionalArgs<?> args, TlsProperties properties)
+	// Visible for tests
+	public static void setupTLS(AbstractDiscoveryClientOptionalArgs<?> args, TlsProperties properties)
 			throws GeneralSecurityException, IOException {
 		if (properties.isEnabled()) {
 			SSLContextFactory factory = new SSLContextFactory(properties);
@@ -98,39 +78,159 @@ public class DiscoveryClientOptionalArgsConfiguration {
 		}
 	}
 
-	@ConditionalOnMissingClass("com.sun.jersey.api.client.filter.ClientFilter")
+	@Configuration(proxyBeanMethods = false)
+	@Conditional(OnJerseyClientPresentAndEnabledCondition.class)
+	@ConditionalOnBean(value = AbstractDiscoveryClientOptionalArgs.class, search = SearchStrategy.CURRENT)
+	static class DiscoveryClientOptionalArgsTlsConfiguration {
+
+		DiscoveryClientOptionalArgsTlsConfiguration(TlsProperties tlsProperties,
+				AbstractDiscoveryClientOptionalArgs optionalArgs) throws GeneralSecurityException, IOException {
+			if (LOG.isInfoEnabled()) {
+				LOG.info("Eureka HTTP Client uses Jersey");
+			}
+			setupTLS(optionalArgs, tlsProperties);
+		}
+
+	}
+
+	@Configuration(proxyBeanMethods = false)
+	@Conditional(OnJerseyClientNotPresentOrNotEnabledCondition.class)
 	@ConditionalOnClass(name = "org.springframework.web.reactive.function.client.WebClient")
 	@ConditionalOnProperty(prefix = "eureka.client", name = "webclient.enabled", havingValue = "true")
 	protected static class WebClientConfiguration {
 
-		@Autowired
-		private TlsProperties tlsProperties;
-
 		@Bean
 		@ConditionalOnMissingBean(
-				value = { AbstractDiscoveryClientOptionalArgs.class, RestTemplateDiscoveryClientOptionalArgs.class },
+				value = { AbstractDiscoveryClientOptionalArgs.class, RestClientDiscoveryClientOptionalArgs.class },
 				search = SearchStrategy.CURRENT)
-		public WebClientDiscoveryClientOptionalArgs webClientDiscoveryClientOptionalArgs(
+		public WebClientDiscoveryClientOptionalArgs webClientDiscoveryClientOptionalArgs(TlsProperties tlsProperties,
 				ObjectProvider<WebClient.Builder> builder) throws GeneralSecurityException, IOException {
-			logger.info("Eureka HTTP Client uses WebClient.");
+			if (LOG.isInfoEnabled()) {
+				LOG.info("Eureka HTTP Client uses WebClient.");
+			}
 			WebClientDiscoveryClientOptionalArgs result = new WebClientDiscoveryClientOptionalArgs(
 					builder::getIfAvailable);
 			setupTLS(result, tlsProperties);
 			return result;
 		}
 
+		@Bean
+		@ConditionalOnMissingBean(value = TransportClientFactories.class, search = SearchStrategy.CURRENT)
+		public WebClientTransportClientFactories webClientTransportClientFactories(
+				ObjectProvider<WebClient.Builder> builder) {
+			return new WebClientTransportClientFactories(builder::getIfAvailable);
+		}
+
 	}
 
-	@Configuration
-	@ConditionalOnMissingClass({ "com.sun.jersey.api.client.filter.ClientFilter",
-			"org.springframework.web.reactive.function.client.WebClient" })
+	@Configuration(proxyBeanMethods = false)
+	@Conditional(OnJerseyClientNotPresentOrNotEnabledCondition.class)
+	@ConditionalOnMissingClass("org.springframework.web.reactive.function.client.WebClient")
 	@ConditionalOnProperty(prefix = "eureka.client", name = "webclient.enabled", havingValue = "true")
 	protected static class WebClientNotFoundConfiguration {
 
 		public WebClientNotFoundConfiguration() {
-			throw new IllegalStateException(
-					"eureka.client.webclient.enabled is true, " + "but WebClient is not on the classpath. Please add "
-							+ "spring-boot-starter-webflux as a dependency.");
+			throw new IllegalStateException("eureka.client.webclient.enabled is true, "
+					+ "but WebClient is not on the classpath. Please add " + "spring-boot-webclient as a dependency.");
+		}
+
+	}
+
+	@Configuration(proxyBeanMethods = false)
+	@Conditional(OnRestClientPresentAndEnabledCondition.class)
+	protected static class RestClientConfiguration {
+
+		@Bean
+		@ConditionalOnMissingBean
+		EurekaClientHttpRequestFactorySupplier defaultEurekaClientHttpRequestFactorySupplier(
+				TimeoutProperties restClientTimeoutProperties,
+				Set<EurekaClientHttpRequestFactorySupplier.RequestConfigCustomizer> requestConfigCustomizers) {
+			return new DefaultEurekaClientHttpRequestFactorySupplier(restClientTimeoutProperties,
+					requestConfigCustomizers);
+		}
+
+		@Bean
+		@ConditionalOnMissingBean(value = { AbstractDiscoveryClientOptionalArgs.class },
+				search = SearchStrategy.CURRENT)
+		public RestClientDiscoveryClientOptionalArgs restClientDiscoveryClientOptionalArgs(TlsProperties tlsProperties,
+				EurekaClientHttpRequestFactorySupplier eurekaClientHttpRequestFactorySupplier,
+				ObjectProvider<RestClient.Builder> restClientBuilderProvider)
+				throws GeneralSecurityException, IOException {
+			if (LOG.isInfoEnabled()) {
+				LOG.info("Eureka HTTP Client uses RestClient.");
+			}
+			RestClientDiscoveryClientOptionalArgs result = new RestClientDiscoveryClientOptionalArgs(
+					eurekaClientHttpRequestFactorySupplier,
+					() -> restClientBuilderProvider.getIfAvailable(RestClient::builder));
+			setupTLS(result, tlsProperties);
+			return result;
+		}
+
+		@Bean
+		@ConditionalOnMissingBean(value = TransportClientFactories.class, search = SearchStrategy.CURRENT)
+		public RestClientTransportClientFactories restClientTransportClientFactories(
+				RestClientDiscoveryClientOptionalArgs args) {
+			return new RestClientTransportClientFactories(args);
+		}
+
+	}
+
+	static class OnJerseyClientPresentAndEnabledCondition extends AllNestedConditions {
+
+		OnJerseyClientPresentAndEnabledCondition() {
+			super(ConfigurationPhase.REGISTER_BEAN);
+		}
+
+		@ConditionalOnClass(name = "org.glassfish.jersey.client.JerseyClient")
+		static class OnJerseyClientPresent {
+
+		}
+
+		@ConditionalOnProperty(value = "eureka.client.jersey.enabled", matchIfMissing = true)
+		static class OnJerseyClientEnabled {
+
+		}
+
+	}
+
+	static class OnJerseyClientNotPresentOrNotEnabledCondition extends AnyNestedCondition {
+
+		OnJerseyClientNotPresentOrNotEnabledCondition() {
+			super(ConfigurationPhase.REGISTER_BEAN);
+		}
+
+		@ConditionalOnMissingClass("org.glassfish.jersey.client.JerseyClient")
+		static class OnJerseyClientMissing {
+
+		}
+
+		@ConditionalOnProperty(value = "eureka.client.jersey.enabled", havingValue = "false")
+		static class OnJerseyClientDisabled {
+
+		}
+
+	}
+
+	static class OnRestClientPresentAndEnabledCondition extends AllNestedConditions {
+
+		OnRestClientPresentAndEnabledCondition() {
+			super(ConfigurationPhase.REGISTER_BEAN);
+		}
+
+		@ConditionalOnClass(name = "org.springframework.web.client.RestClient")
+		static class OnRestClientPresent {
+
+		}
+
+		@Conditional(OnJerseyClientNotPresentOrNotEnabledCondition.class)
+		static class OnJerseyClientNotPresentOrNotEnabled {
+
+		}
+
+		@ConditionalOnProperty(prefix = "eureka.client", name = "webclient.enabled", matchIfMissing = true,
+				havingValue = "false")
+		static class OnWebClientDisabled {
+
 		}
 
 	}

spring-cloud-netflix-eureka-client/src/main/java/org/springframework/cloud/netflix/eureka/config/EurekaClientConfigServerAutoConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-present the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,17 +16,16 @@
 
 package org.springframework.cloud.netflix.eureka.config;
 
-import javax.annotation.PostConstruct;
-
 import com.netflix.appinfo.EurekaInstanceConfig;
 import com.netflix.discovery.EurekaClient;
+import jakarta.annotation.PostConstruct;
 
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
-import org.springframework.cloud.config.server.config.ConfigServerProperties;
 import org.springframework.cloud.netflix.eureka.EurekaInstanceConfigBean;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.core.env.Environment;
 import org.springframework.util.StringUtils;
 
 /**
@@ -36,21 +35,22 @@ import org.springframework.util.StringUtils;
  */
 @Configuration(proxyBeanMethods = false)
 @EnableConfigurationProperties
-@ConditionalOnClass({ EurekaInstanceConfigBean.class, EurekaClient.class, ConfigServerProperties.class })
+@ConditionalOnClass(value = { EurekaInstanceConfigBean.class, EurekaClient.class },
+		name = "org.springframework.cloud.config.server.config.ConfigServerProperties")
 public class EurekaClientConfigServerAutoConfiguration {
 
 	@Autowired(required = false)
 	private EurekaInstanceConfig instance;
 
-	@Autowired(required = false)
-	private ConfigServerProperties server;
+	@Autowired
+	private Environment env;
 
 	@PostConstruct
 	public void init() {
-		if (this.instance == null || this.server == null) {
+		if (this.instance == null) {
 			return;
 		}
-		String prefix = this.server.getPrefix();
+		String prefix = this.env.getProperty("spring.cloud.config.server.prefix");
 		if (StringUtils.hasText(prefix) && !StringUtils.hasText(this.instance.getMetadataMap().get("configPath"))) {
 			this.instance.getMetadataMap().put("configPath", prefix);
 		}

spring-cloud-netflix-eureka-client/src/main/java/org/springframework/cloud/netflix/eureka/config/EurekaConfigServerBootstrapConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-present the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,44 +16,53 @@
 
 package org.springframework.cloud.netflix.eureka.config;
 
+import java.util.Set;
+
 import com.netflix.discovery.EurekaClientConfig;
 import com.netflix.discovery.shared.transport.EurekaHttpClient;
 
 import org.springframework.beans.factory.ObjectProvider;
 import org.springframework.boot.autoconfigure.ImportAutoConfiguration;
+import org.springframework.boot.autoconfigure.condition.AllNestedConditions;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.boot.autoconfigure.condition.SearchStrategy;
-import org.springframework.boot.autoconfigure.http.codec.CodecsAutoConfiguration;
-import org.springframework.boot.autoconfigure.web.reactive.function.client.WebClientAutoConfiguration;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
+import org.springframework.boot.http.codec.autoconfigure.CodecsAutoConfiguration;
+import org.springframework.boot.webclient.autoconfigure.WebClientAutoConfiguration;
 import org.springframework.cloud.config.client.ConfigServerInstanceProvider;
 import org.springframework.cloud.config.client.ConfigServicePropertySourceLocator;
 import org.springframework.cloud.configuration.TlsProperties;
 import org.springframework.cloud.netflix.eureka.EurekaClientConfigBean;
+import org.springframework.cloud.netflix.eureka.TimeoutProperties;
 import org.springframework.cloud.netflix.eureka.http.DefaultEurekaClientHttpRequestFactorySupplier;
 import org.springframework.cloud.netflix.eureka.http.EurekaClientHttpRequestFactorySupplier;
-import org.springframework.cloud.netflix.eureka.http.RestTemplateEurekaHttpClient;
-import org.springframework.cloud.netflix.eureka.http.RestTemplateTransportClientFactory;
+import org.springframework.cloud.netflix.eureka.http.RestClientEurekaHttpClient;
+import org.springframework.cloud.netflix.eureka.http.RestClientTransportClientFactory;
 import org.springframework.cloud.netflix.eureka.http.WebClientEurekaHttpClient;
 import org.springframework.cloud.netflix.eureka.http.WebClientTransportClientFactory;
 import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Conditional;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.core.env.Environment;
 import org.springframework.lang.Nullable;
+import org.springframework.web.client.RestClient;
 import org.springframework.web.reactive.function.client.WebClient;
 
 /**
- * Bootstrap configuration for config client that wants to lookup the config server via
+ * Bootstrap configuration for config client that wants to look the config server up via
  * discovery.
  *
  * @author Dave Syer
+ * @author Armin Krezovic
+ * @author Wonchul Heo
+ * @author Olga Maciaszek-Sharma
  */
 @ConditionalOnClass(ConfigServicePropertySourceLocator.class)
-@ConditionalOnProperty("spring.cloud.config.discovery.enabled")
+@Conditional(EurekaConfigServerBootstrapConfiguration.EurekaConfigServerBootstrapCondition.class)
 @Configuration(proxyBeanMethods = false)
-@EnableConfigurationProperties
+@EnableConfigurationProperties({ TimeoutProperties.class })
 public class EurekaConfigServerBootstrapConfiguration {
 
 	@Bean
@@ -62,24 +71,6 @@ public class EurekaConfigServerBootstrapConfiguration {
 		return new EurekaClientConfigBean();
 	}
 
-	@Bean
-	@ConditionalOnMissingBean(EurekaHttpClient.class)
-	@ConditionalOnProperty(prefix = "eureka.client", name = "webclient.enabled", matchIfMissing = true,
-			havingValue = "false")
-	public RestTemplateEurekaHttpClient configDiscoveryRestTemplateEurekaHttpClient(EurekaClientConfigBean config,
-			Environment env, @Nullable TlsProperties properties,
-			EurekaClientHttpRequestFactorySupplier eurekaClientHttpRequestFactorySupplier) {
-		return (RestTemplateEurekaHttpClient) new RestTemplateTransportClientFactory(properties,
-				eurekaClientHttpRequestFactorySupplier)
-						.newClient(HostnameBasedUrlRandomizer.randomEndpoint(config, env));
-	}
-
-	@Bean
-	@ConditionalOnMissingBean
-	EurekaClientHttpRequestFactorySupplier defaultEurekaClientHttpRequestFactorySupplier() {
-		return new DefaultEurekaClientHttpRequestFactorySupplier();
-	}
-
 	@Bean
 	public ConfigServerInstanceProvider.Function eurekaConfigServerInstanceProvider(EurekaHttpClient client,
 			EurekaClientConfig config) {
@@ -87,7 +78,7 @@ public class EurekaConfigServerBootstrapConfiguration {
 	}
 
 	@Configuration(proxyBeanMethods = false)
-	@ConditionalOnClass(name = "org.springframework.web.reactive.function.client.WebClient")
+	@ConditionalOnClass({ WebClient.class, WebClientAutoConfiguration.class, CodecsAutoConfiguration.class })
 	@ConditionalOnProperty(prefix = "eureka.client", name = "webclient.enabled", havingValue = "true")
 	@ImportAutoConfiguration({ CodecsAutoConfiguration.class, WebClientAutoConfiguration.class })
 	protected static class WebClientConfiguration {
@@ -97,7 +88,70 @@ public class EurekaConfigServerBootstrapConfiguration {
 		public WebClientEurekaHttpClient configDiscoveryWebClientEurekaHttpClient(EurekaClientConfigBean config,
 				ObjectProvider<WebClient.Builder> builder, Environment env) {
 			return (WebClientEurekaHttpClient) new WebClientTransportClientFactory(builder::getIfAvailable)
-					.newClient(HostnameBasedUrlRandomizer.randomEndpoint(config, env));
+				.newClient(HostnameBasedUrlRandomizer.randomEndpoint(config, env));
+		}
+
+	}
+
+	@Configuration(proxyBeanMethods = false)
+	@Conditional(RestClientConfiguration.OnRestClientPresentAndEnabledCondition.class)
+	static class RestClientConfiguration {
+
+		@Bean
+		@ConditionalOnMissingBean(EurekaHttpClient.class)
+		public RestClientEurekaHttpClient configDiscoveryRestClientEurekaHttpClient(EurekaClientConfigBean config,
+				@Nullable TlsProperties properties,
+				EurekaClientHttpRequestFactorySupplier eurekaClientHttpRequestFactorySupplier,
+				ObjectProvider<RestClient.Builder> restClientBuilderProvider, Environment env) {
+			return (RestClientEurekaHttpClient) new RestClientTransportClientFactory(properties,
+					eurekaClientHttpRequestFactorySupplier,
+					() -> restClientBuilderProvider.getIfAvailable(RestClient::builder))
+				.newClient(HostnameBasedUrlRandomizer.randomEndpoint(config, env));
+		}
+
+		@Bean
+		@ConditionalOnMissingBean
+		EurekaClientHttpRequestFactorySupplier defaultEurekaClientHttpRequestFactorySupplier(
+				TimeoutProperties timeoutProperties,
+				Set<EurekaClientHttpRequestFactorySupplier.RequestConfigCustomizer> requestConfigCustomizers) {
+			return new DefaultEurekaClientHttpRequestFactorySupplier(timeoutProperties, requestConfigCustomizers);
+		}
+
+		static class OnRestClientPresentAndEnabledCondition extends AllNestedConditions {
+
+			OnRestClientPresentAndEnabledCondition() {
+				super(ConfigurationPhase.REGISTER_BEAN);
+			}
+
+			@ConditionalOnClass(name = "org.springframework.web.client.RestClient")
+			static class OnRestClientPresentCondition {
+
+			}
+
+			@ConditionalOnProperty(prefix = "eureka.client", name = "webclient.enabled", matchIfMissing = true,
+					havingValue = "false")
+			static class OnWebClientDisabled {
+
+			}
+
+		}
+
+	}
+
+	static class EurekaConfigServerBootstrapCondition extends AllNestedConditions {
+
+		EurekaConfigServerBootstrapCondition() {
+			super(ConfigurationPhase.REGISTER_BEAN);
+		}
+
+		@ConditionalOnProperty("spring.cloud.config.discovery.enabled")
+		static class OnCloudConfigProperty {
+
+		}
+
+		@ConditionalOnProperty(value = "eureka.client.enabled", matchIfMissing = true)
+		static class OnEurekaClient {
+
 		}
 
 	}

spring-cloud-netflix-eureka-client/src/main/java/org/springframework/cloud/netflix/eureka/config/EurekaConfigServerBootstrapper.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-present the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,54 +16,68 @@
 
 package org.springframework.cloud.netflix.eureka.config;
 
+import java.util.Collections;
+
 import com.netflix.discovery.shared.transport.EurekaHttpClient;
 
-import org.springframework.boot.BootstrapRegistry;
-import org.springframework.boot.Bootstrapper;
+import org.springframework.boot.bootstrap.BootstrapContext;
+import org.springframework.boot.bootstrap.BootstrapRegistry;
+import org.springframework.boot.bootstrap.BootstrapRegistryInitializer;
+import org.springframework.boot.context.properties.bind.BindHandler;
 import org.springframework.boot.context.properties.bind.Binder;
 import org.springframework.cloud.config.client.ConfigClientProperties;
+import org.springframework.cloud.config.client.ConfigServerConfigDataLocationResolver.PropertyResolver;
 import org.springframework.cloud.config.client.ConfigServerInstanceProvider;
 import org.springframework.cloud.configuration.TlsProperties;
 import org.springframework.cloud.netflix.eureka.EurekaClientConfigBean;
+import org.springframework.cloud.netflix.eureka.TimeoutProperties;
 import org.springframework.cloud.netflix.eureka.http.DefaultEurekaClientHttpRequestFactorySupplier;
 import org.springframework.cloud.netflix.eureka.http.EurekaClientHttpRequestFactorySupplier;
-import org.springframework.cloud.netflix.eureka.http.RestTemplateTransportClientFactory;
+import org.springframework.cloud.netflix.eureka.http.RestClientTransportClientFactory;
 import org.springframework.util.ClassUtils;
 
-public class EurekaConfigServerBootstrapper implements Bootstrapper {
+public class EurekaConfigServerBootstrapper implements BootstrapRegistryInitializer {
 
 	@Override
-	public void intitialize(BootstrapRegistry registry) {
+	public void initialize(BootstrapRegistry registry) {
 		if (!ClassUtils.isPresent("org.springframework.cloud.config.client.ConfigServerInstanceProvider", null)) {
 			return;
 		}
+
 		registry.registerIfAbsent(EurekaClientConfigBean.class, context -> {
-			Binder binder = context.get(Binder.class);
-			if (!getDiscoveryEnabled(binder)) {
+			if (!getDiscoveryEnabled(context)) {
 				return null;
 			}
-
-			return binder.bind(EurekaClientConfigBean.PREFIX, EurekaClientConfigBean.class)
-					.orElseGet(EurekaClientConfigBean::new);
+			PropertyResolver propertyResolver = getPropertyResolver(context);
+			return propertyResolver.resolveConfigurationProperties(EurekaClientConfigBean.PREFIX,
+					EurekaClientConfigBean.class, EurekaClientConfigBean::new);
 		});
 
 		registry.registerIfAbsent(ConfigServerInstanceProvider.Function.class, context -> {
-			Binder binder = context.get(Binder.class);
-			if (!getDiscoveryEnabled(binder)) {
-				return null;
+			if (!getDiscoveryEnabled(context)) {
+				return (id) -> Collections.emptyList();
 			}
 			EurekaClientConfigBean config = context.get(EurekaClientConfigBean.class);
-			EurekaHttpClient httpClient = new RestTemplateTransportClientFactory(
+			EurekaHttpClient httpClient = new RestClientTransportClientFactory(
 					context.getOrElse(TlsProperties.class, null),
 					context.getOrElse(EurekaClientHttpRequestFactorySupplier.class,
-							new DefaultEurekaClientHttpRequestFactorySupplier()))
-									.newClient(HostnameBasedUrlRandomizer.randomEndpoint(config, binder));
+							new DefaultEurekaClientHttpRequestFactorySupplier(new TimeoutProperties(),
+									Collections.emptySet())))
+				.newClient(HostnameBasedUrlRandomizer.randomEndpoint(config, getPropertyResolver(context)));
 			return new EurekaConfigServerInstanceProvider(httpClient, config)::getInstances;
 		});
 	}
 
-	private Boolean getDiscoveryEnabled(Binder binder) {
-		return binder.bind(ConfigClientProperties.CONFIG_DISCOVERY_ENABLED, Boolean.class).orElse(false);
+	private static PropertyResolver getPropertyResolver(BootstrapContext context) {
+		return context.getOrElseSupply(PropertyResolver.class,
+				() -> new PropertyResolver(context.get(Binder.class), context.getOrElse(BindHandler.class, null)));
+	}
+
+	public static Boolean getDiscoveryEnabled(BootstrapContext bootstrapContext) {
+		PropertyResolver propertyResolver = getPropertyResolver(bootstrapContext);
+		return propertyResolver.get(ConfigClientProperties.CONFIG_DISCOVERY_ENABLED, Boolean.class, false)
+				&& propertyResolver.get("eureka.client.enabled", Boolean.class, true)
+				&& propertyResolver.get("spring.cloud.discovery.enabled", Boolean.class, true);
 	}
 
 }

spring-cloud-netflix-eureka-client/src/main/java/org/springframework/cloud/netflix/eureka/config/EurekaConfigServerInstanceProvider.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-present the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -31,6 +31,9 @@ import org.springframework.cloud.client.ServiceInstance;
 import org.springframework.cloud.netflix.eureka.EurekaServiceInstance;
 import org.springframework.http.HttpStatus;
 
+/**
+ * @author Tang Xiong
+ */
 public class EurekaConfigServerInstanceProvider {
 
 	private final Log log;
@@ -53,7 +56,11 @@ public class EurekaConfigServerInstanceProvider {
 		if (log.isDebugEnabled()) {
 			log.debug("eurekaConfigServerInstanceProvider finding instances for " + serviceId);
 		}
-		EurekaHttpResponse<Applications> response = client.getApplications(config.getRegion());
+		String remoteRegionsStr = config.fetchRegistryForRemoteRegions();
+		String[] remoteRegions = remoteRegionsStr == null ? null : remoteRegionsStr.split(",");
+		EurekaHttpResponse<Applications> response = config.getRegistryRefreshSingleVipAddress() == null
+				? client.getApplications(remoteRegions)
+				: client.getVip(config.getRegistryRefreshSingleVipAddress(), remoteRegions);
 		List<ServiceInstance> instances = new ArrayList<>();
 		if (!isSuccessful(response) || response.getEntity() == null) {
 			return instances;

spring-cloud-netflix-eureka-client/src/main/java/org/springframework/cloud/netflix/eureka/config/EurekaTlsProperties.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2020 the original author or authors.
+ * Copyright 2017-present the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

spring-cloud-netflix-eureka-client/src/main/java/org/springframework/cloud/netflix/eureka/config/HostnameBasedUrlRandomizer.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-present the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,15 +18,19 @@ package org.springframework.cloud.netflix.eureka.config;
 
 import java.util.List;
 
+import com.netflix.discovery.EurekaClientConfig;
 import com.netflix.discovery.endpoint.EndpointUtils;
 import com.netflix.discovery.shared.resolver.DefaultEndpoint;
 
 import org.springframework.boot.context.properties.bind.Binder;
+import org.springframework.cloud.config.client.ConfigServerConfigDataLocationResolver.PropertyResolver;
 import org.springframework.cloud.netflix.eureka.EurekaClientConfigBean;
 import org.springframework.core.env.Environment;
 import org.springframework.util.StringUtils;
 
-final class HostnameBasedUrlRandomizer implements EndpointUtils.ServiceUrlRandomizer {
+public final class HostnameBasedUrlRandomizer implements EndpointUtils.ServiceUrlRandomizer {
+
+	private static final String EUREKA_INSTANCE_HOSTNAME = "eureka.instance.hostname";
 
 	private final String hostname;
 
@@ -56,19 +60,24 @@ final class HostnameBasedUrlRandomizer implements EndpointUtils.ServiceUrlRandom
 		}
 	}
 
-	static String getEurekaUrl(EurekaClientConfigBean config, String hostname) {
+	public static String getEurekaUrl(EurekaClientConfig config, String hostname) {
 		List<String> urls = EndpointUtils.getDiscoveryServiceUrls(config, EurekaClientConfigBean.DEFAULT_ZONE,
 				new HostnameBasedUrlRandomizer(hostname));
 		return urls.get(0);
 	}
 
-	static DefaultEndpoint randomEndpoint(EurekaClientConfigBean config, Environment env) {
-		String hostname = env.getProperty("eureka.instance.hostname");
+	public static DefaultEndpoint randomEndpoint(EurekaClientConfig config, Environment env) {
+		String hostname = env.getProperty(EUREKA_INSTANCE_HOSTNAME);
 		return new DefaultEndpoint(getEurekaUrl(config, hostname));
 	}
 
-	static DefaultEndpoint randomEndpoint(EurekaClientConfigBean config, Binder binder) {
-		String hostname = binder.bind("eureka.instance.hostname", String.class).orElseGet(() -> null);
+	public static DefaultEndpoint randomEndpoint(EurekaClientConfig config, Binder binder) {
+		String hostname = binder.bind(EUREKA_INSTANCE_HOSTNAME, String.class).orElseGet(() -> null);
+		return new DefaultEndpoint(getEurekaUrl(config, hostname));
+	}
+
+	public static DefaultEndpoint randomEndpoint(EurekaClientConfig config, PropertyResolver propertyResolver) {
+		String hostname = propertyResolver.get(EUREKA_INSTANCE_HOSTNAME, String.class, null);
 		return new DefaultEndpoint(getEurekaUrl(config, hostname));
 	}
 

spring-cloud-netflix-eureka-client/src/main/java/org/springframework/cloud/netflix/eureka/http/DefaultEurekaClientHttpRequestFactorySupplier.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-present the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,13 +16,25 @@
 
 package org.springframework.cloud.netflix.eureka.http;
 
+import java.util.Set;
+import java.util.concurrent.TimeUnit;
+
 import javax.net.ssl.HostnameVerifier;
 import javax.net.ssl.SSLContext;
 
-import org.apache.http.impl.client.CloseableHttpClient;
-import org.apache.http.impl.client.HttpClientBuilder;
-import org.apache.http.impl.client.HttpClients;
+import org.apache.hc.client5.http.config.ConnectionConfig;
+import org.apache.hc.client5.http.config.RequestConfig;
+import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
+import org.apache.hc.client5.http.impl.classic.HttpClientBuilder;
+import org.apache.hc.client5.http.impl.classic.HttpClients;
+import org.apache.hc.client5.http.impl.io.PoolingHttpClientConnectionManagerBuilder;
+import org.apache.hc.client5.http.io.HttpClientConnectionManager;
+import org.apache.hc.client5.http.ssl.SSLConnectionSocketFactoryBuilder;
+import org.apache.hc.core5.http.io.SocketConfig;
+import org.apache.hc.core5.util.Timeout;
 
+import org.springframework.cloud.netflix.eureka.TimeoutProperties;
+import org.springframework.cloud.netflix.eureka.http.EurekaClientHttpRequestFactorySupplier.RequestConfigCustomizer;
 import org.springframework.http.client.ClientHttpRequestFactory;
 import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
 import org.springframework.lang.Nullable;
@@ -31,24 +43,77 @@ import org.springframework.lang.Nullable;
  * Supplier for the {@link ClientHttpRequestFactory} to be used by Eureka client that uses
  * {@link HttpClients}.
  *
+ * <p>
+ * This supplier is intentionally stateless: each call to {@link #get} builds a fresh
+ * {@link CloseableHttpClient}. Caching and lifecycle management of the shared client is
+ * the responsibility of the owning {@code TransportClientFactory}
+ * ({@link RestClientTransportClientFactory}), which is already created once per Eureka
+ * client and is the natural owner of that client's lifecycle.
+ *
  * @author Marcin Grzejszczak
+ * @author Olga Maciaszek-Sharma
+ * @author Jiwon Jeon
  * @since 3.0.0
  */
 public class DefaultEurekaClientHttpRequestFactorySupplier implements EurekaClientHttpRequestFactorySupplier {
 
+	private final TimeoutProperties timeoutProperties;
+
+	private final Set<RequestConfigCustomizer> requestConfigCustomizers;
+
+	public DefaultEurekaClientHttpRequestFactorySupplier(TimeoutProperties timeoutProperties,
+			Set<RequestConfigCustomizer> requestConfigCustomizers) {
+		this.timeoutProperties = timeoutProperties;
+		this.requestConfigCustomizers = requestConfigCustomizers;
+	}
+
 	@Override
 	public ClientHttpRequestFactory get(SSLContext sslContext, @Nullable HostnameVerifier hostnameVerifier) {
-		HttpClientBuilder httpClientBuilder = HttpClients.custom();
-		if (sslContext != null) {
-			httpClientBuilder = httpClientBuilder.setSSLContext(sslContext);
-		}
-		if (hostnameVerifier != null) {
-			httpClientBuilder = httpClientBuilder.setSSLHostnameVerifier(hostnameVerifier);
+		HttpClientBuilder httpClientBuilder = HttpClientBuilder.create();
+		if (sslContext != null || hostnameVerifier != null || timeoutProperties != null) {
+			httpClientBuilder
+				.setConnectionManager(buildConnectionManager(sslContext, hostnameVerifier, timeoutProperties));
 		}
+		httpClientBuilder.setDefaultRequestConfig(buildRequestConfig());
 		CloseableHttpClient httpClient = httpClientBuilder.build();
+
 		HttpComponentsClientHttpRequestFactory requestFactory = new HttpComponentsClientHttpRequestFactory();
 		requestFactory.setHttpClient(httpClient);
 		return requestFactory;
 	}
 
+	private HttpClientConnectionManager buildConnectionManager(SSLContext sslContext, HostnameVerifier hostnameVerifier,
+			TimeoutProperties timeoutProperties) {
+		PoolingHttpClientConnectionManagerBuilder connectionManagerBuilder = PoolingHttpClientConnectionManagerBuilder
+			.create();
+		SSLConnectionSocketFactoryBuilder sslConnectionSocketFactoryBuilder = SSLConnectionSocketFactoryBuilder
+			.create();
+		if (sslContext != null) {
+			sslConnectionSocketFactoryBuilder.setSslContext(sslContext);
+		}
+		if (hostnameVerifier != null) {
+			sslConnectionSocketFactoryBuilder.setHostnameVerifier(hostnameVerifier);
+		}
+		connectionManagerBuilder.setSSLSocketFactory(sslConnectionSocketFactoryBuilder.build());
+		if (timeoutProperties != null) {
+			connectionManagerBuilder.setDefaultSocketConfig(SocketConfig.custom()
+				.setSoTimeout(Timeout.of(timeoutProperties.getSocketTimeout(), TimeUnit.MILLISECONDS))
+				.build());
+			connectionManagerBuilder.setDefaultConnectionConfig(ConnectionConfig.custom()
+				.setConnectTimeout(Timeout.of(timeoutProperties.getConnectTimeout(), TimeUnit.MILLISECONDS))
+				.build());
+		}
+		return connectionManagerBuilder.build();
+	}
+
+	private RequestConfig buildRequestConfig() {
+		RequestConfig.Builder requestConfigBuilder = RequestConfig.custom();
+		if (timeoutProperties != null) {
+			requestConfigBuilder.setConnectionRequestTimeout(
+					Timeout.of(timeoutProperties.getConnectRequestTimeout(), TimeUnit.MILLISECONDS));
+		}
+		requestConfigCustomizers.forEach(customizer -> customizer.customize(requestConfigBuilder));
+		return requestConfigBuilder.build();
+	}
+
 }

spring-cloud-netflix-eureka-client/src/main/java/org/springframework/cloud/netflix/eureka/http/EurekaApplications.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2020 the original author or authors.
+ * Copyright 2017-present the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -24,8 +24,8 @@ import com.netflix.discovery.shared.Application;
 import com.netflix.discovery.shared.Applications;
 
 /**
- * A simple wrapper class for {@link Applications} that insure proprer Jackson
- * serialization through the JsonPropert overwrites.
+ * A simple wrapper class for {@link Applications} that insure proper Jackson
+ * serialization through the JsonProperties overwrites.
  *
  * @author Daniel Lavoie
  */

spring-cloud-netflix-eureka-client/src/main/java/org/springframework/cloud/netflix/eureka/http/EurekaClientHttpRequestFactorySupplier.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2013-2020 the original author or authors.
+ * Copyright 2013-present the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,6 +19,8 @@ package org.springframework.cloud.netflix.eureka.http;
 import javax.net.ssl.HostnameVerifier;
 import javax.net.ssl.SSLContext;
 
+import org.apache.hc.client5.http.config.RequestConfig;
+
 import org.springframework.http.client.ClientHttpRequestFactory;
 import org.springframework.lang.Nullable;
 
@@ -38,4 +40,17 @@ public interface EurekaClientHttpRequestFactorySupplier {
 	 */
 	ClientHttpRequestFactory get(SSLContext sslContext, @Nullable HostnameVerifier hostnameVerifier);
 
+	/**
+	 * Allows customising the {@link RequestConfig} of the underlying Apache HC5 instance.
+	 *
+	 * @author Olga Maciaszek-Sharma
+	 * @since 4.2.1
+	 */
+	@FunctionalInterface
+	interface RequestConfigCustomizer {
+
+		void customize(RequestConfig.Builder builder);
+
+	}
+
 }

spring-cloud-netflix-eureka-client/src/main/java/org/springframework/cloud/netflix/eureka/http/EurekaHttpClientUtils.java

@@ -0,0 +1,147 @@
+/*
+ * Copyright 2017-present the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.cloud.netflix.eureka.http;
+
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.util.Optional;
+
+import javax.net.ssl.SSLContext;
+
+import com.fasterxml.jackson.databind.BeanDescription;
+import com.fasterxml.jackson.databind.DeserializationFeature;
+import com.fasterxml.jackson.databind.JsonSerializer;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.PropertyNamingStrategies;
+import com.fasterxml.jackson.databind.SerializationConfig;
+import com.fasterxml.jackson.databind.SerializationFeature;
+import com.fasterxml.jackson.databind.module.SimpleModule;
+import com.fasterxml.jackson.databind.ser.BeanSerializerModifier;
+import com.fasterxml.jackson.databind.ser.std.BeanSerializerBase;
+import com.netflix.appinfo.InstanceInfo;
+import com.netflix.discovery.converters.jackson.mixin.ApplicationsJsonMixIn;
+import com.netflix.discovery.converters.jackson.mixin.InstanceInfoJsonMixIn;
+import com.netflix.discovery.converters.jackson.serializer.InstanceInfoJsonBeanSerializer;
+import com.netflix.discovery.shared.Applications;
+import com.netflix.discovery.shared.transport.EurekaHttpClient;
+
+import org.springframework.cloud.configuration.SSLContextFactory;
+import org.springframework.cloud.configuration.TlsProperties;
+import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
+import org.springframework.lang.Nullable;
+
+/**
+ * Utility class for dealing with {@link EurekaHttpClient}.
+ *
+ * @author Daniel Lavoie
+ * @author Wonchul Heo
+ * @author Olga Maciaszek-Sharma
+ * @since 4.2.0
+ */
+final class EurekaHttpClientUtils {
+
+	private EurekaHttpClientUtils() {
+		throw new AssertionError("Must not instantiate constant utility class");
+	}
+
+	/**
+	 * Provides the serialization configurations required by the Eureka Server. JSON
+	 * content exchanged with eureka requires a root node matching the entity being
+	 * serialized or deserialized. Achieved with
+	 * {@link SerializationFeature#WRAP_ROOT_VALUE} and
+	 * {@link DeserializationFeature#UNWRAP_ROOT_VALUE}.
+	 * {@link PropertyNamingStrategies.SnakeCaseStrategy} is applied to the underlying
+	 * {@link ObjectMapper}.
+	 * @return a {@link MappingJackson2HttpMessageConverter} object
+	 */
+	static MappingJackson2HttpMessageConverter mappingJacksonHttpMessageConverter() {
+		final MappingJackson2HttpMessageConverter converter = new MappingJackson2HttpMessageConverter();
+		converter.setObjectMapper(objectMapper());
+		return converter;
+	}
+
+	/**
+	 * Provides the serialization configurations required by the Eureka Server. JSON
+	 * content exchanged with eureka requires a root node matching the entity being
+	 * serialized or deserialized. Achieved with
+	 * {@link SerializationFeature#WRAP_ROOT_VALUE} and
+	 * {@link DeserializationFeature#UNWRAP_ROOT_VALUE}.
+	 * {@link PropertyNamingStrategies.SnakeCaseStrategy} is applied to the underlying
+	 * {@link ObjectMapper}.
+	 * @return a {@link ObjectMapper} object
+	 */
+	static ObjectMapper objectMapper() {
+		final ObjectMapper objectMapper = new ObjectMapper();
+		objectMapper.setPropertyNamingStrategy(PropertyNamingStrategies.SNAKE_CASE);
+
+		final SimpleModule jsonModule = new SimpleModule();
+		jsonModule.setSerializerModifier(createJsonSerializerModifier());
+		objectMapper.registerModule(jsonModule);
+
+		objectMapper.configure(SerializationFeature.WRAP_ROOT_VALUE, true);
+		objectMapper.configure(DeserializationFeature.UNWRAP_ROOT_VALUE, true);
+		objectMapper.addMixIn(Applications.class, ApplicationsJsonMixIn.class);
+		objectMapper.addMixIn(InstanceInfo.class, InstanceInfoJsonMixIn.class);
+
+		return objectMapper;
+	}
+
+	private static BeanSerializerModifier createJsonSerializerModifier() {
+		return new BeanSerializerModifier() {
+			@Override
+			public JsonSerializer<?> modifySerializer(SerializationConfig config, BeanDescription beanDesc,
+					JsonSerializer<?> serializer) {
+				if (beanDesc.getBeanClass().isAssignableFrom(InstanceInfo.class)) {
+					return new InstanceInfoJsonBeanSerializer((BeanSerializerBase) serializer, false);
+				}
+				return serializer;
+			}
+		};
+	}
+
+	@Nullable
+	static UserInfo extractUserInfo(String serviceUrl) {
+		try {
+			final URI serviceURI = new URI(serviceUrl);
+			if (serviceURI.getUserInfo() != null) {
+				final String[] credentials = serviceURI.getUserInfo().split(":");
+				if (credentials.length == 2) {
+					return new UserInfo(credentials[0], credentials[1]);
+				}
+			}
+		}
+		catch (URISyntaxException ignore) {
+		}
+		return null;
+	}
+
+	static Optional<SSLContext> context(TlsProperties properties) {
+		if (properties == null || !properties.isEnabled()) {
+			return Optional.empty();
+		}
+		try {
+			return Optional.of(new SSLContextFactory(properties).createSSLContext());
+		}
+		catch (Exception e) {
+			throw new IllegalStateException(e);
+		}
+	}
+
+	record UserInfo(String username, String password) {
+	}
+
+}

spring-cloud-netflix-eureka-client/src/main/java/org/springframework/cloud/netflix/eureka/http/NotFoundHttpResponse.java

@@ -0,0 +1,67 @@
+/*
+ * Copyright 2017-present the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.cloud.netflix.eureka.http;
+
+import java.io.IOException;
+import java.io.InputStream;
+
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpStatusCode;
+import org.springframework.http.client.ClientHttpResponse;
+
+/**
+ * Response that ignores body, specifically for 404 errors.
+ *
+ * @author Spencer Gibb
+ * @author Wonchul Heo
+ * @since 4.2.0
+ */
+class NotFoundHttpResponse implements ClientHttpResponse {
+
+	private final ClientHttpResponse response;
+
+	NotFoundHttpResponse(ClientHttpResponse response) {
+		this.response = response;
+	}
+
+	@Override
+	public HttpStatusCode getStatusCode() throws IOException {
+		return response.getStatusCode();
+	}
+
+	@Override
+	public String getStatusText() throws IOException {
+		return response.getStatusText();
+	}
+
+	@Override
+	public void close() {
+		response.close();
+	}
+
+	@Override
+	public InputStream getBody() throws IOException {
+		// ignore body on 404 for heartbeat, see gh-4145
+		return null;
+	}
+
+	@Override
+	public HttpHeaders getHeaders() {
+		return response.getHeaders();
+	}
+
+}

spring-cloud-netflix-eureka-client/src/main/java/org/springframework/cloud/netflix/eureka/http/RestClientDiscoveryClientOptionalArgs.java

@@ -0,0 +1,55 @@
+/*
+ * Copyright 2017-present the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.cloud.netflix.eureka.http;
+
+import java.util.function.Supplier;
+
+import com.netflix.discovery.AbstractDiscoveryClientOptionalArgs;
+import jakarta.ws.rs.client.ClientRequestFilter;
+
+import org.springframework.web.client.RestClient;
+
+/**
+ * {@link RestClient} implementation of DiscoveryClientOptionalArgs that supports
+ * supplying {@link ClientRequestFilter}.
+ *
+ * @author Wonchul Heo
+ * @author Olga Maciaszek-Sharma
+ * @since 4.2.0
+ */
+public class RestClientDiscoveryClientOptionalArgs extends AbstractDiscoveryClientOptionalArgs<Void> {
+
+	private final EurekaClientHttpRequestFactorySupplier eurekaClientHttpRequestFactorySupplier;
+
+	private final Supplier<RestClient.Builder> restClientBuilderSupplier;
+
+	public RestClientDiscoveryClientOptionalArgs(
+			EurekaClientHttpRequestFactorySupplier eurekaClientHttpRequestFactorySupplier,
+			Supplier<RestClient.Builder> restClientBuilderSupplier) {
+		this.eurekaClientHttpRequestFactorySupplier = eurekaClientHttpRequestFactorySupplier;
+		this.restClientBuilderSupplier = restClientBuilderSupplier;
+	}
+
+	EurekaClientHttpRequestFactorySupplier getEurekaClientHttpRequestFactorySupplier() {
+		return eurekaClientHttpRequestFactorySupplier;
+	}
+
+	Supplier<RestClient.Builder> getRestClientBuilderSupplier() {
+		return restClientBuilderSupplier;
+	}
+
+}

spring-cloud-netflix-eureka-client/src/main/java/org/springframework/cloud/netflix/eureka/http/RestClientEurekaHttpClient.java

@@ -0,0 +1,238 @@
+/*
+ * Copyright 2017-present the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.cloud.netflix.eureka.http;
+
+import java.net.URI;
+import java.util.Map;
+import java.util.Optional;
+import java.util.function.Function;
+
+import com.netflix.appinfo.InstanceInfo;
+import com.netflix.appinfo.InstanceInfo.InstanceStatus;
+import com.netflix.discovery.shared.Application;
+import com.netflix.discovery.shared.Applications;
+import com.netflix.discovery.shared.transport.EurekaHttpClient;
+import com.netflix.discovery.shared.transport.EurekaHttpResponse;
+import com.netflix.discovery.shared.transport.EurekaHttpResponse.EurekaHttpResponseBuilder;
+import com.netflix.discovery.util.StringUtil;
+
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.client.RestClient;
+import org.springframework.web.util.UriBuilder;
+
+import static com.netflix.discovery.shared.transport.EurekaHttpResponse.anEurekaHttpResponse;
+
+/**
+ * {@link RestClient} implementation of {@link EurekaHttpClient}.
+ *
+ * @author Wonchul Heo
+ * @since 4.2.0
+ */
+public class RestClientEurekaHttpClient implements EurekaHttpClient {
+
+	private final RestClient restClient;
+
+	public RestClientEurekaHttpClient(RestClient restClient) {
+		this.restClient = restClient;
+	}
+
+	@Override
+	public EurekaHttpResponse<Void> register(InstanceInfo info) {
+		final ResponseEntity<Void> response = restClient.post()
+			.uri(builder -> builder.pathSegment("apps", info.getAppName()).build())
+			.body(info)
+			.header(HttpHeaders.ACCEPT_ENCODING, "gzip")
+			.header(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_JSON_VALUE)
+			.retrieve()
+			.toBodilessEntity();
+		return eurekaHttpResponse(response);
+	}
+
+	@Override
+	public EurekaHttpResponse<Void> cancel(String appName, String id) {
+		final ResponseEntity<Void> response = restClient.delete()
+			.uri(builder -> builder.pathSegment("apps", appName, id).build())
+			.retrieve()
+			.toBodilessEntity();
+		return eurekaHttpResponse(response);
+	}
+
+	@Override
+	public EurekaHttpResponse<InstanceInfo> sendHeartBeat(String appName, String id, InstanceInfo info,
+			InstanceStatus overriddenStatus) {
+		final Function<UriBuilder, URI> uriFunction = builder -> builder.pathSegment("apps", appName, id)
+			.queryParam("status", info.getStatus().toString())
+			.queryParam("lastDirtyTimestamp", info.getLastDirtyTimestamp().toString())
+			.queryParamIfPresent("overriddenstatus", Optional.ofNullable(overriddenStatus).map(InstanceStatus::name))
+			.build();
+
+		final ResponseEntity<InstanceInfo> response = restClient.put()
+			.uri(uriFunction)
+			.header(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_JSON_VALUE)
+			.header(HttpHeaders.ACCEPT, MediaType.APPLICATION_JSON_VALUE)
+			.retrieve()
+			.toEntity(InstanceInfo.class);
+
+		final EurekaHttpResponseBuilder<InstanceInfo> builder = anEurekaHttpResponse(statusCodeValueOf(response),
+				InstanceInfo.class)
+			.headers(headersOf(response));
+
+		final InstanceInfo entity = response.getBody();
+		if (entity != null) {
+			builder.entity(entity);
+		}
+
+		return builder.build();
+	}
+
+	@Override
+	public EurekaHttpResponse<Void> statusUpdate(String appName, String id, InstanceStatus newStatus,
+			InstanceInfo info) {
+		final Function<UriBuilder, URI> uriFunction = builder -> builder.pathSegment("apps", appName, id, "status")
+			.queryParam("value", newStatus.name())
+			.queryParam("lastDirtyTimestamp", info.getLastDirtyTimestamp().toString())
+			.build();
+
+		final ResponseEntity<Void> response = restClient.put()
+			.uri(uriFunction)
+			.header(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_JSON_VALUE)
+			.retrieve()
+			.toBodilessEntity();
+		return eurekaHttpResponse(response);
+	}
+
+	@Override
+	public EurekaHttpResponse<Void> deleteStatusOverride(String appName, String id, InstanceInfo info) {
+		final Function<UriBuilder, URI> uriFunction = builder -> builder.pathSegment("apps", appName, id, "status")
+			.queryParam("lastDirtyTimestamp", info.getLastDirtyTimestamp().toString())
+			.build();
+
+		final ResponseEntity<Void> response = restClient.delete()
+			.uri(uriFunction)
+			.header(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_JSON_VALUE)
+			.retrieve()
+			.toBodilessEntity();
+		return eurekaHttpResponse(response);
+	}
+
+	@Override
+	public EurekaHttpResponse<Applications> getApplications(String... regions) {
+		return getApplicationsInternal("/apps/", regions);
+	}
+
+	@Override
+	public EurekaHttpResponse<Applications> getDelta(String... regions) {
+		return getApplicationsInternal("/apps/delta", regions);
+	}
+
+	@Override
+	public EurekaHttpResponse<Applications> getVip(String vipAddress, String... regions) {
+		return getApplicationsInternal("/vips/" + vipAddress, regions);
+	}
+
+	@Override
+	public EurekaHttpResponse<Applications> getSecureVip(String secureVipAddress, String... regions) {
+		return getApplicationsInternal("/svips/" + secureVipAddress, regions);
+	}
+
+	@Override
+	public EurekaHttpResponse<Application> getApplication(String appName) {
+
+		final ResponseEntity<Application> response = restClient.get()
+			.uri("/apps/" + appName)
+			.header(HttpHeaders.ACCEPT, MediaType.APPLICATION_JSON_VALUE)
+			.retrieve()
+			.toEntity(Application.class);
+
+		final int statusCode = statusCodeValueOf(response);
+		final Application body = response.getBody();
+
+		final Application application = statusCode == HttpStatus.OK.value() && body != null ? body : null;
+
+		return anEurekaHttpResponse(statusCode, application).headers(headersOf(response)).build();
+	}
+
+	@Override
+	public EurekaHttpResponse<InstanceInfo> getInstance(String appName, String id) {
+		return getInstanceInternal("/apps/" + appName + '/' + id);
+	}
+
+	@Override
+	public EurekaHttpResponse<InstanceInfo> getInstance(String id) {
+		return getInstanceInternal("/instances/" + id);
+	}
+
+	@Override
+	public void shutdown() {
+	}
+
+	public RestClient getRestClient() {
+		return restClient;
+	}
+
+	private EurekaHttpResponse<Applications> getApplicationsInternal(String urlPath, String[] regions) {
+		final Function<UriBuilder, URI> uriFunction = builder -> builder
+			.queryParamIfPresent("regions",
+					Optional.ofNullable(regions).filter(it -> it.length > 0).map(StringUtil::join))
+			.build();
+
+		final ResponseEntity<Applications> response = restClient.get()
+			.uri(urlPath, uriFunction)
+			.header(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_JSON_VALUE)
+			.header(HttpHeaders.ACCEPT, MediaType.APPLICATION_JSON_VALUE)
+			.retrieve()
+			.toEntity(Applications.class);
+
+		final int statusCode = statusCodeValueOf(response);
+		final Applications body = response.getBody();
+
+		return anEurekaHttpResponse(statusCode, statusCode == HttpStatus.OK.value() && body != null ? body : null)
+			.headers(headersOf(response))
+			.build();
+	}
+
+	private EurekaHttpResponse<InstanceInfo> getInstanceInternal(String urlPath) {
+		final ResponseEntity<InstanceInfo> response = restClient.get()
+			.uri(urlPath)
+			.header(HttpHeaders.ACCEPT, MediaType.APPLICATION_JSON_VALUE)
+			.retrieve()
+			.toEntity(InstanceInfo.class);
+
+		final int statusCode = statusCodeValueOf(response);
+		final InstanceInfo body = response.getBody();
+
+		return anEurekaHttpResponse(statusCode, statusCode == HttpStatus.OK.value() && body != null ? body : null)
+			.headers(headersOf(response))
+			.build();
+	}
+
+	private static Map<String, String> headersOf(ResponseEntity<?> response) {
+		return response.getHeaders().toSingleValueMap();
+	}
+
+	private static int statusCodeValueOf(ResponseEntity<?> response) {
+		return response.getStatusCode().value();
+	}
+
+	private static EurekaHttpResponse<Void> eurekaHttpResponse(ResponseEntity<?> response) {
+		return anEurekaHttpResponse(statusCodeValueOf(response)).headers(headersOf(response)).build();
+	}
+
+}

spring-cloud-netflix-eureka-client/src/main/java/org/springframework/cloud/netflix/eureka/http/RestClientTransportClientFactories.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2020 the original author or authors.
+ * Copyright 2017-present the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -25,39 +25,34 @@ import javax.net.ssl.SSLContext;
 import com.netflix.appinfo.InstanceInfo;
 import com.netflix.discovery.EurekaClientConfig;
 import com.netflix.discovery.shared.transport.TransportClientFactory;
-import com.netflix.discovery.shared.transport.jersey.EurekaJerseyClient;
 import com.netflix.discovery.shared.transport.jersey.TransportClientFactories;
 
 /**
- * @author Daniel Lavoie
+ * @author Wonchul Heo
+ * @author Olga Maciaszek-Sharma
+ * @since 4.2.0
  */
-public class RestTemplateTransportClientFactories implements TransportClientFactories<Void> {
+public class RestClientTransportClientFactories implements TransportClientFactories<Void> {
 
-	private final RestTemplateDiscoveryClientOptionalArgs args;
+	private final RestClientDiscoveryClientOptionalArgs args;
 
-	public RestTemplateTransportClientFactories(RestTemplateDiscoveryClientOptionalArgs args) {
+	public RestClientTransportClientFactories(RestClientDiscoveryClientOptionalArgs args) {
 		this.args = args;
 	}
 
-	@Override
-	public TransportClientFactory newTransportClientFactory(Collection<Void> additionalFilters,
-			EurekaJerseyClient providedJerseyClient) {
-		throw new UnsupportedOperationException();
-	}
-
 	@Override
 	public TransportClientFactory newTransportClientFactory(EurekaClientConfig clientConfig,
 			Collection<Void> additionalFilters, InstanceInfo myInstanceInfo) {
-		return new RestTemplateTransportClientFactory(this.args.getSSLContext(), this.args.getHostnameVerifier(),
-				this.args.eurekaClientHttpRequestFactorySupplier);
+		return new RestClientTransportClientFactory(args.getSSLContext(), args.getHostnameVerifier(),
+				args.getEurekaClientHttpRequestFactorySupplier(), args.getRestClientBuilderSupplier());
 	}
 
 	@Override
 	public TransportClientFactory newTransportClientFactory(final EurekaClientConfig clientConfig,
 			final Collection<Void> additionalFilters, final InstanceInfo myInstanceInfo,
 			final Optional<SSLContext> sslContext, final Optional<HostnameVerifier> hostnameVerifier) {
-		return new RestTemplateTransportClientFactory(this.args.getSSLContext(), this.args.getHostnameVerifier(),
-				this.args.eurekaClientHttpRequestFactorySupplier);
+		return new RestClientTransportClientFactory(sslContext, hostnameVerifier,
+				args.getEurekaClientHttpRequestFactorySupplier(), args.getRestClientBuilderSupplier());
 	}
 
 }

spring-cloud-netflix-eureka-client/src/main/java/org/springframework/cloud/netflix/eureka/http/RestClientTransportClientFactory.java

@@ -0,0 +1,153 @@
+/*
+ * Copyright 2017-present the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.cloud.netflix.eureka.http;
+
+import java.io.Closeable;
+import java.io.IOException;
+import java.util.Optional;
+import java.util.function.Supplier;
+
+import javax.net.ssl.HostnameVerifier;
+import javax.net.ssl.SSLContext;
+
+import com.netflix.discovery.shared.resolver.EurekaEndpoint;
+import com.netflix.discovery.shared.transport.EurekaHttpClient;
+import com.netflix.discovery.shared.transport.TransportClientFactory;
+
+import org.springframework.cloud.configuration.TlsProperties;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.HttpStatusCode;
+import org.springframework.http.client.ClientHttpRequestFactory;
+import org.springframework.http.client.ClientHttpResponse;
+import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
+import org.springframework.http.client.support.BasicAuthenticationInterceptor;
+import org.springframework.web.client.RestClient;
+import org.springframework.web.util.UriComponentsBuilder;
+
+import static org.springframework.cloud.netflix.eureka.http.EurekaHttpClientUtils.context;
+import static org.springframework.cloud.netflix.eureka.http.EurekaHttpClientUtils.extractUserInfo;
+import static org.springframework.cloud.netflix.eureka.http.EurekaHttpClientUtils.mappingJacksonHttpMessageConverter;
+
+/**
+ * Provides the custom {@link RestClient} required by the
+ * {@link RestClientEurekaHttpClient}. Relies on Jackson for serialization and
+ * deserialization.
+ *
+ * <p>
+ * A single {@link ClientHttpRequestFactory} (and the underlying HTTP client it wraps) is
+ * lazily built on the first call to {@link #newClient} and reused for every subsequent
+ * call on this factory instance. Since each {@code RestClientTransportClientFactory} is
+ * already scoped to a single Eureka client, caching the request factory here - rather
+ * than in a potentially shared {@link EurekaClientHttpRequestFactorySupplier} - ties the
+ * shared client's lifecycle directly to this factory instance, so {@link #shutdown()}
+ * only ever closes a client owned exclusively by this factory.
+ *
+ * @author Wonchul Heo
+ * @author Olga Maciaszek-Sharma
+ * @since 4.2.0
+ */
+public class RestClientTransportClientFactory implements TransportClientFactory {
+
+	private final Optional<SSLContext> sslContext;
+
+	private final Optional<HostnameVerifier> hostnameVerifier;
+
+	private final EurekaClientHttpRequestFactorySupplier eurekaClientHttpRequestFactorySupplier;
+
+	private final Supplier<RestClient.Builder> builderSupplier;
+
+	private ClientHttpRequestFactory cachedRequestFactory;
+
+	public RestClientTransportClientFactory(Optional<SSLContext> sslContext,
+			Optional<HostnameVerifier> hostnameVerifier,
+			EurekaClientHttpRequestFactorySupplier eurekaClientHttpRequestFactorySupplier,
+			Supplier<RestClient.Builder> builderSupplier) {
+		this.sslContext = sslContext;
+		this.hostnameVerifier = hostnameVerifier;
+		this.eurekaClientHttpRequestFactorySupplier = eurekaClientHttpRequestFactorySupplier;
+		this.builderSupplier = builderSupplier;
+	}
+
+	public RestClientTransportClientFactory(TlsProperties tlsProperties,
+			EurekaClientHttpRequestFactorySupplier eurekaClientHttpRequestFactorySupplier,
+			Supplier<RestClient.Builder> builderSupplier) {
+		this(context(tlsProperties), Optional.empty(), eurekaClientHttpRequestFactorySupplier, builderSupplier);
+	}
+
+	public RestClientTransportClientFactory(TlsProperties tlsProperties,
+			EurekaClientHttpRequestFactorySupplier eurekaClientHttpRequestFactorySupplier) {
+		this(tlsProperties, eurekaClientHttpRequestFactorySupplier, RestClient::builder);
+	}
+
+	@Override
+	public EurekaHttpClient newClient(EurekaEndpoint endpoint) {
+		// we want a copy to modify. Don't change the original
+		final RestClient.Builder builder = builderSupplier.get().clone();
+
+		ClientHttpRequestFactory requestFactory = getOrCreateRequestFactory();
+
+		builder.requestFactory(requestFactory);
+		setUrl(builder, endpoint.getServiceUrl());
+		builder.messageConverters(converters -> converters.add(0, mappingJacksonHttpMessageConverter()));
+
+		builder.defaultStatusHandler(HttpStatusCode::isError, (req, res) -> {
+		});
+
+		builder.requestInterceptor((request, body, execution) -> {
+			final ClientHttpResponse response = execution.execute(request, body);
+			if (!response.getStatusCode().equals(HttpStatus.NOT_FOUND)) {
+				return response;
+			}
+			return new NotFoundHttpResponse(response);
+		});
+
+		return new RestClientEurekaHttpClient(builder.build());
+	}
+
+	private synchronized ClientHttpRequestFactory getOrCreateRequestFactory() {
+		if (this.cachedRequestFactory == null) {
+			this.cachedRequestFactory = this.eurekaClientHttpRequestFactorySupplier.get(this.sslContext.orElse(null),
+					this.hostnameVerifier.orElse(null));
+		}
+		return this.cachedRequestFactory;
+	}
+
+	@Override
+	public synchronized void shutdown() {
+		if (this.cachedRequestFactory instanceof HttpComponentsClientHttpRequestFactory httpRequestFactory
+				&& httpRequestFactory.getHttpClient() instanceof Closeable closeableHttpClient) {
+			try {
+				closeableHttpClient.close();
+			}
+			catch (IOException ex) {
+				// best-effort close during shutdown; nothing actionable if it fails
+			}
+		}
+		this.cachedRequestFactory = null;
+	}
+
+	private static void setUrl(RestClient.Builder builder, String serviceUrl) {
+		final String url = UriComponentsBuilder.fromUriString(serviceUrl).userInfo(null).toUriString();
+
+		final EurekaHttpClientUtils.UserInfo userInfo = extractUserInfo(serviceUrl);
+		if (userInfo != null) {
+			builder.requestInterceptor(new BasicAuthenticationInterceptor(userInfo.username(), userInfo.password()));
+		}
+		builder.baseUrl(url);
+	}
+
+}

spring-cloud-netflix-eureka-client/src/main/java/org/springframework/cloud/netflix/eureka/http/RestTemplateDiscoveryClientOptionalArgs.java

@@ -1,43 +0,0 @@
-/*
- * Copyright 2017-2020 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.springframework.cloud.netflix.eureka.http;
-
-import com.netflix.discovery.AbstractDiscoveryClientOptionalArgs;
-
-/**
- * @author Daniel Lavoie
- */
-public class RestTemplateDiscoveryClientOptionalArgs extends AbstractDiscoveryClientOptionalArgs<Void> {
-
-	protected final EurekaClientHttpRequestFactorySupplier eurekaClientHttpRequestFactorySupplier;
-
-	public RestTemplateDiscoveryClientOptionalArgs(
-			EurekaClientHttpRequestFactorySupplier eurekaClientHttpRequestFactorySupplier) {
-		this.eurekaClientHttpRequestFactorySupplier = eurekaClientHttpRequestFactorySupplier;
-		setTransportClientFactories(new RestTemplateTransportClientFactories(this));
-	}
-
-	/**
-	 * @deprecated - use
-	 * {@link RestTemplateDiscoveryClientOptionalArgs#RestTemplateDiscoveryClientOptionalArgs(EurekaClientHttpRequestFactorySupplier)}
-	 */
-	@Deprecated
-	public RestTemplateDiscoveryClientOptionalArgs() {
-		this(new DefaultEurekaClientHttpRequestFactorySupplier());
-	}
-
-}

spring-cloud-netflix-eureka-client/src/main/java/org/springframework/cloud/netflix/eureka/http/RestTemplateEurekaHttpClient.java

@@ -1,220 +0,0 @@
-/*
- * Copyright 2017-2020 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.springframework.cloud.netflix.eureka.http;
-
-import java.util.Collections;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.Map.Entry;
-
-import com.netflix.appinfo.InstanceInfo;
-import com.netflix.appinfo.InstanceInfo.InstanceStatus;
-import com.netflix.discovery.shared.Application;
-import com.netflix.discovery.shared.Applications;
-import com.netflix.discovery.shared.transport.EurekaHttpClient;
-import com.netflix.discovery.shared.transport.EurekaHttpResponse;
-import com.netflix.discovery.shared.transport.EurekaHttpResponse.EurekaHttpResponseBuilder;
-import com.netflix.discovery.util.StringUtil;
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
-
-import org.springframework.http.HttpEntity;
-import org.springframework.http.HttpHeaders;
-import org.springframework.http.HttpMethod;
-import org.springframework.http.HttpStatus;
-import org.springframework.http.MediaType;
-import org.springframework.http.ResponseEntity;
-import org.springframework.web.client.RestTemplate;
-
-import static com.netflix.discovery.shared.transport.EurekaHttpResponse.anEurekaHttpResponse;
-
-/**
- * @author Daniel Lavoie
- */
-public class RestTemplateEurekaHttpClient implements EurekaHttpClient {
-
-	protected final Log logger = LogFactory.getLog(getClass());
-
-	private RestTemplate restTemplate;
-
-	private String serviceUrl;
-
-	public RestTemplateEurekaHttpClient(RestTemplate restTemplate, String serviceUrl) {
-		this.restTemplate = restTemplate;
-		this.serviceUrl = serviceUrl;
-		if (!serviceUrl.endsWith("/")) {
-			this.serviceUrl = this.serviceUrl + "/";
-		}
-	}
-
-	public String getServiceUrl() {
-		return this.serviceUrl;
-	}
-
-	@Override
-	public EurekaHttpResponse<Void> register(InstanceInfo info) {
-		String urlPath = serviceUrl + "apps/" + info.getAppName();
-
-		HttpHeaders headers = new HttpHeaders();
-		headers.add(HttpHeaders.ACCEPT_ENCODING, "gzip");
-		headers.add(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_JSON_VALUE);
-
-		ResponseEntity<Void> response = restTemplate.exchange(urlPath, HttpMethod.POST, new HttpEntity<>(info, headers),
-				Void.class);
-
-		return anEurekaHttpResponse(response.getStatusCodeValue()).headers(headersOf(response)).build();
-	}
-
-	@Override
-	public EurekaHttpResponse<Void> cancel(String appName, String id) {
-		String urlPath = serviceUrl + "apps/" + appName + '/' + id;
-
-		ResponseEntity<Void> response = restTemplate.exchange(urlPath, HttpMethod.DELETE, null, Void.class);
-
-		return anEurekaHttpResponse(response.getStatusCodeValue()).headers(headersOf(response)).build();
-	}
-
-	@Override
-	public EurekaHttpResponse<InstanceInfo> sendHeartBeat(String appName, String id, InstanceInfo info,
-			InstanceStatus overriddenStatus) {
-		String urlPath = serviceUrl + "apps/" + appName + '/' + id + "?status=" + info.getStatus().toString()
-				+ "&lastDirtyTimestamp=" + info.getLastDirtyTimestamp().toString()
-				+ (overriddenStatus != null ? "&overriddenstatus=" + overriddenStatus.name() : "");
-
-		ResponseEntity<InstanceInfo> response = restTemplate.exchange(urlPath, HttpMethod.PUT, null,
-				InstanceInfo.class);
-
-		EurekaHttpResponseBuilder<InstanceInfo> eurekaResponseBuilder = anEurekaHttpResponse(
-				response.getStatusCodeValue(), InstanceInfo.class).headers(headersOf(response));
-
-		if (response.hasBody()) {
-			eurekaResponseBuilder.entity(response.getBody());
-		}
-
-		return eurekaResponseBuilder.build();
-	}
-
-	@Override
-	public EurekaHttpResponse<Void> statusUpdate(String appName, String id, InstanceStatus newStatus,
-			InstanceInfo info) {
-		String urlPath = serviceUrl + "apps/" + appName + '/' + id + "/status?value=" + newStatus.name()
-				+ "&lastDirtyTimestamp=" + info.getLastDirtyTimestamp().toString();
-
-		ResponseEntity<Void> response = restTemplate.exchange(urlPath, HttpMethod.PUT, null, Void.class);
-
-		return anEurekaHttpResponse(response.getStatusCodeValue()).headers(headersOf(response)).build();
-	}
-
-	@Override
-	public EurekaHttpResponse<Void> deleteStatusOverride(String appName, String id, InstanceInfo info) {
-		String urlPath = serviceUrl + "apps/" + appName + '/' + id + "/status?lastDirtyTimestamp="
-				+ info.getLastDirtyTimestamp().toString();
-
-		ResponseEntity<Void> response = restTemplate.exchange(urlPath, HttpMethod.DELETE, null, Void.class);
-
-		return anEurekaHttpResponse(response.getStatusCodeValue()).headers(headersOf(response)).build();
-	}
-
-	@Override
-	public EurekaHttpResponse<Applications> getApplications(String... regions) {
-		return getApplicationsInternal("apps/", regions);
-	}
-
-	private EurekaHttpResponse<Applications> getApplicationsInternal(String urlPath, String[] regions) {
-		String url = serviceUrl + urlPath;
-
-		if (regions != null && regions.length > 0) {
-			url = url + (urlPath.contains("?") ? "&" : "?") + "regions=" + StringUtil.join(regions);
-		}
-
-		ResponseEntity<EurekaApplications> response = restTemplate.exchange(url, HttpMethod.GET, null,
-				EurekaApplications.class);
-
-		return anEurekaHttpResponse(response.getStatusCodeValue(),
-				response.getStatusCode().value() == HttpStatus.OK.value() && response.hasBody()
-						? (Applications) response.getBody() : null).headers(headersOf(response)).build();
-	}
-
-	@Override
-	public EurekaHttpResponse<Applications> getDelta(String... regions) {
-		return getApplicationsInternal("apps/delta", regions);
-	}
-
-	@Override
-	public EurekaHttpResponse<Applications> getVip(String vipAddress, String... regions) {
-		return getApplicationsInternal("vips/" + vipAddress, regions);
-	}
-
-	@Override
-	public EurekaHttpResponse<Applications> getSecureVip(String secureVipAddress, String... regions) {
-		return getApplicationsInternal("svips/" + secureVipAddress, regions);
-	}
-
-	@Override
-	public EurekaHttpResponse<Application> getApplication(String appName) {
-		String urlPath = serviceUrl + "apps/" + appName;
-
-		ResponseEntity<Application> response = restTemplate.exchange(urlPath, HttpMethod.GET, null, Application.class);
-
-		Application application = response.getStatusCodeValue() == HttpStatus.OK.value() && response.hasBody()
-				? response.getBody() : null;
-
-		return anEurekaHttpResponse(response.getStatusCodeValue(), application).headers(headersOf(response)).build();
-	}
-
-	@Override
-	public EurekaHttpResponse<InstanceInfo> getInstance(String appName, String id) {
-		return getInstanceInternal("apps/" + appName + '/' + id);
-	}
-
-	@Override
-	public EurekaHttpResponse<InstanceInfo> getInstance(String id) {
-		return getInstanceInternal("instances/" + id);
-	}
-
-	private EurekaHttpResponse<InstanceInfo> getInstanceInternal(String urlPath) {
-		urlPath = serviceUrl + urlPath;
-
-		ResponseEntity<InstanceInfo> response = restTemplate.exchange(urlPath, HttpMethod.GET, null,
-				InstanceInfo.class);
-
-		return anEurekaHttpResponse(response.getStatusCodeValue(),
-				response.getStatusCodeValue() == HttpStatus.OK.value() && response.hasBody() ? response.getBody()
-						: null).headers(headersOf(response)).build();
-	}
-
-	@Override
-	public void shutdown() {
-		// Nothing to do
-	}
-
-	private static Map<String, String> headersOf(ResponseEntity<?> response) {
-		HttpHeaders httpHeaders = response.getHeaders();
-		if (httpHeaders == null || httpHeaders.isEmpty()) {
-			return Collections.emptyMap();
-		}
-		Map<String, String> headers = new HashMap<>();
-		for (Entry<String, List<String>> entry : httpHeaders.entrySet()) {
-			if (!entry.getValue().isEmpty()) {
-				headers.put(entry.getKey(), entry.getValue().get(0));
-			}
-		}
-		return headers;
-	}
-
-}