Update SNAPSHOT to 3.1.10

This reverts commit 4bea4c590f.

.circleci/config.yml

@@ -1,39 +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-build-{{ .Branch }}
-      - run:
-          name: "Download dependencies"
-          command: ./mvnw -s .settings.xml -U --fail-never dependency:go-offline || true
-      - save_cache:
-          key: sc-build-{{ .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/workflows/maven.yml

@@ -0,0 +1,35 @@
+# This workflow will build a Java project with Maven
+# For more information see: https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-maven
+
+name: Build
+
+on:
+  push:
+    branches: [ main, 3.1.x ]
+  pull_request:
+    branches: [ main, 3.1.x ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        java: ["8", "11", "16"]
+
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up JDK 1.8
+        uses: actions/setup-java@v1
+        with:
+          java-version: 1.8
+      - name: Cache local Maven repository
+        uses: actions/cache@v2
+        with:
+          path: ~/.m2/repository
+          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
+          restore-keys: |
+            ${{ runner.os }}-maven-
+      - name: Build with Maven
+        run: ./mvnw clean install -B -U -Pspring

.gitignore

@@ -18,5 +18,4 @@ _site/
 .factorypath
 .vscode/
 .flattened-pom.xml
-.DS_Store
-.sdkmanrc
+.DS_Store

.mvn/maven.config

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

.sdkmanrc

@@ -0,0 +1,3 @@
+# Enable auto-env through the sdkman_auto_env config
+# Add key=value pairs of SDKs to use below
+java=8.0.292.hs-adpt

README.adoc

@@ -5,7 +5,7 @@ Edit the files in the src/main/asciidoc/ directory instead.
 ////
 
 
-image:https://circleci.com/gh/spring-cloud/spring-cloud-build.svg?style=svg[link="https://travis-ci.org/spring-cloud/spring-cloud-build"]
+image::https://github.com/spring-cloud/spring-cloud-build/workflows/Build/badge.svg?branch=main&style=svg["Build",link="https://github.com/spring-cloud/spring-cloud-build/actions"]
 
 Spring Cloud Build is a common utility project for Spring Cloud
 to use for plugin and dependency management.
@@ -47,7 +47,7 @@ $ mvn deploy -P central -DaltReleaseDeploymentRepository=sonatype-nexus-staging:
 
 == Contributing
 
-:spring-cloud-build-branch: master
+:spring-cloud-build-branch: 3.1.x
 
 Spring Cloud is released under the non-restrictive Apache 2.0 license,
 and follows a very standard Github development process, using Github
@@ -64,7 +64,7 @@ author credit if we do.  Active contributors might be asked to join the core tea
 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
+This project adheres to the Contributor Covenant https://github.com/spring-cloud/spring-cloud-build/blob/3.1.x/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.
 
@@ -75,7 +75,7 @@ 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
+  https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/3.1.x/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.
@@ -171,7 +171,7 @@ If you need to suppress some rules (e.g. line length needs to be longer), then i
 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
+$ curl https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/3.1.x/.editorconfig -o .editorconfig
 $ touch .springformat
 ```
 
@@ -180,7 +180,7 @@ $ touch .springformat
 ==== 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.
+The following files can be found in the https://github.com/spring-cloud/spring-cloud-build/tree/3.1.x/spring-cloud-build-tools[Spring Cloud Build] project.
 
 .spring-cloud-build-tools/
 ----
@@ -219,14 +219,65 @@ To have Intellij work with Checkstyle, you have to install the `Checkstyle` plug
 
 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:
+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/3.1.x/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.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/3.1.x/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/3.1.x/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.
 
+=== Duplicate Finder
+
+Spring Cloud Build brings along the  `basepom:duplicate-finder-maven-plugin`, that enables flagging duplicate and conflicting classes and resources on the java classpath.
+
+==== Duplicate Finder configuration
+
+Duplicate finder is *enabled by default* and will run in the `verify` phase of your Maven build, but it will only take effect in your project if you add the `duplicate-finder-maven-plugin` to the `build` section of the projecst's `pom.xml`.
+
+.pom.xml
+[source,xml]
+----
+<build>
+    <plugins>
+        <plugin>
+            <groupId>org.basepom.maven</groupId>
+            <artifactId>duplicate-finder-maven-plugin</artifactId>
+        </plugin>
+    </plugins>
+</build>
+----
+
+For other properties, we have set defaults as listed in the https://github.com/basepom/duplicate-finder-maven-plugin/wiki[plugin documentation].
+
+You can easily override them but setting the value of the selected property prefixed with `duplicate-finder-maven-plugin`. For example, set `duplicate-finder-maven-plugin.skip` to `true` in order to skip duplicates check in your build.
+
+If you need to add `ignoredClassPatterns` or `ignoredResourcePatterns` to your setup, make sure to add them in the plugin configuration section of your project:
+
+[source,xml]
+----
+<build>
+    <plugins>
+        <plugin>
+            <groupId>org.basepom.maven</groupId>
+            <artifactId>duplicate-finder-maven-plugin</artifactId>
+            <configuration>
+                <ignoredClassPatterns>
+                    <ignoredClassPattern>org.joda.time.base.BaseDateTime</ignoredClassPattern>
+                    <ignoredClassPattern>.*module-info</ignoredClassPattern>
+                </ignoredClassPatterns>
+                <ignoredResourcePatterns>
+                    <ignoredResourcePattern>changelog.txt</ignoredResourcePattern>
+                </ignoredResourcePatterns>
+            </configuration>
+        </plugin>
+    </plugins>
+</build>
+
+
+----
+
+
 == Flattening the POMs
 
 To avoid propagating build setup that is required to build a Spring Cloud project, we're using the maven flatten plugin. It has the advantage of letting you use whatever features you need while publishing "clean" pom to the repository.
@@ -351,6 +402,7 @@ Spring Cloud Build Docs comes with a set of attributes for asciidoctor that you
     <raw-docs-url>${github-raw}@</raw-docs-url>
     <project-version>${project.version}@</project-version>
     <project-name>${docs.main}@</project-name>
+    <source-highlighter>highlight.js</source-highlighter>
 </attributes>
 ----
 

SECURITY.md

@@ -1,5 +0,0 @@
-# Security Policy
-
-## Reporting a Vulnerability
-
-To report security vulnerabilities, please go to https://pivotal.io/security.

docs/pom.xml

@@ -10,7 +10,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-build</artifactId>
-		<version>3.0.0-RC1</version>
+		<version>3.1.10</version>
 	</parent>
 	<properties>
 		<docs.main>spring-cloud-build</docs.main>
@@ -20,8 +20,11 @@
 		<maven-dependency-plugin-for-docs-classes.phase>none</maven-dependency-plugin-for-docs-classes.phase>
 		<docs.resources.dir>${project.basedir}/src/main/</docs.resources.dir>
 		<upload-docs-zip.phase>deploy</upload-docs-zip.phase>
+		<!-- Don't upload docs jar to central / repo.spring.io -->
+		<maven-deploy-plugin-default.phase>none</maven-deploy-plugin-default.phase>
 		<!-- We don't want to reference plugin classpath of ourselves -->
 		<readme.class.path>maven.compile.classpath</readme.class.path>
+		<spring-cloud-build-docs-classifier></spring-cloud-build-docs-classifier>
 	</properties>
 	<dependencies>
 		<!-- Script -->
@@ -85,7 +88,7 @@
 			</plugin>
 			<plugin>
 				<artifactId>maven-deploy-plugin</artifactId>
-				<version>2.8.2</version>
+				<version>${maven-deploy-plugin.version}</version>
 			</plugin>
 		</plugins>
 	</build>

docs/src/main/asciidoc/README.adoc

@@ -1,4 +1,4 @@
-image:https://circleci.com/gh/spring-cloud/spring-cloud-build.svg?style=svg[link="https://travis-ci.org/spring-cloud/spring-cloud-build"]
+image::https://github.com/spring-cloud/spring-cloud-build/workflows/Build/badge.svg?branch=main&style=svg["Build",link="https://github.com/spring-cloud/spring-cloud-build/actions"]
 
 Spring Cloud Build is a common utility project for Spring Cloud
 to use for plugin and dependency management.
@@ -40,7 +40,7 @@ $ mvn deploy -P central -DaltReleaseDeploymentRepository=sonatype-nexus-staging:
 
 == Contributing
 
-include::https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/master/docs/src/main/asciidoc/contributing.adoc[]
+include::https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/3.1.x/docs/src/main/asciidoc/contributing.adoc[]
 
 == Flattening the POMs
 
@@ -128,7 +128,7 @@ Spring Cloud Build Docs comes with a set of attributes for asciidoctor that you
 
 [source,xml]
 ----
-include::https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/master/pom.xml[tags=attributes,indent=0]
+include::https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/3.1.x/pom.xml[tags=attributes,indent=0]
 ----
 
 == Updating the guides

docs/src/main/asciidoc/building-base.adoc

@@ -22,23 +22,9 @@ 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 [Docker](https://www.docker.com/get-started) 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
 

docs/src/main/asciidoc/building-jdk8.adoc

@@ -1,4 +1,4 @@
 :jdkversion: 1.8
 
-include::https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/master/docs/src/main/asciidoc/building-base.adoc[]
+include::https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/3.1.x/docs/src/main/asciidoc/building-base.adoc[]
 

docs/src/main/asciidoc/building.adoc

@@ -1,3 +1,3 @@
-:jdkversion: 1.7
+:jdkversion: 1.8
 
-include::https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/master/docs/src/main/asciidoc/building-base.adoc[]
+include::https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/3.1.x/docs/src/main/asciidoc/building-base.adoc[]

docs/src/main/asciidoc/contributing.adoc

@@ -1,4 +1,4 @@
-:spring-cloud-build-branch: master
+:spring-cloud-build-branch: 3.1.x
 
 Spring Cloud is released under the non-restrictive Apache 2.0 license,
 and follows a very standard Github development process, using Github
@@ -15,7 +15,7 @@ author credit if we do.  Active contributors might be asked to join the core tea
 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
+This project adheres to the Contributor Covenant https://github.com/spring-cloud/spring-cloud-build/blob/3.1.x/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.
 
@@ -26,7 +26,7 @@ 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
+  https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/3.1.x/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.
@@ -122,7 +122,7 @@ If you need to suppress some rules (e.g. line length needs to be longer), then i
 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
+$ curl https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/3.1.x/.editorconfig -o .editorconfig
 $ touch .springformat
 ```
 
@@ -131,7 +131,7 @@ $ touch .springformat
 ==== 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.
+The following files can be found in the https://github.com/spring-cloud/spring-cloud-build/tree/3.1.x/spring-cloud-build-tools[Spring Cloud Build] project.
 
 .spring-cloud-build-tools/
 ----
@@ -170,10 +170,61 @@ To have Intellij work with Checkstyle, you have to install the `Checkstyle` plug
 
 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:
+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/3.1.x/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.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/3.1.x/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/3.1.x/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.
+
+=== Duplicate Finder
+
+Spring Cloud Build brings along the  `basepom:duplicate-finder-maven-plugin`, that enables flagging duplicate and conflicting classes and resources on the java classpath.
+
+==== Duplicate Finder configuration
+
+Duplicate finder is *enabled by default* and will run in the `verify` phase of your Maven build, but it will only take effect in your project if you add the `duplicate-finder-maven-plugin` to the `build` section of the projecst's `pom.xml`.
+
+.pom.xml
+[source,xml]
+----
+<build>
+    <plugins>
+        <plugin>
+            <groupId>org.basepom.maven</groupId>
+            <artifactId>duplicate-finder-maven-plugin</artifactId>
+        </plugin>
+    </plugins>
+</build>
+----
+
+For other properties, we have set defaults as listed in the https://github.com/basepom/duplicate-finder-maven-plugin/wiki[plugin documentation].
+
+You can easily override them but setting the value of the selected property prefixed with `duplicate-finder-maven-plugin`. For example, set `duplicate-finder-maven-plugin.skip` to `true` in order to skip duplicates check in your build.
+
+If you need to add `ignoredClassPatterns` or `ignoredResourcePatterns` to your setup, make sure to add them in the plugin configuration section of your project:
+
+[source,xml]
+----
+<build>
+    <plugins>
+        <plugin>
+            <groupId>org.basepom.maven</groupId>
+            <artifactId>duplicate-finder-maven-plugin</artifactId>
+            <configuration>
+                <ignoredClassPatterns>
+				    <ignoredClassPattern>org.joda.time.base.BaseDateTime</ignoredClassPattern>
+					<ignoredClassPattern>.*module-info</ignoredClassPattern>
+				</ignoredClassPatterns>
+                <ignoredResourcePatterns>
+                    <ignoredResourcePattern>changelog.txt</ignoredResourcePattern>
+                </ignoredResourcePatterns>
+            </configuration>
+        </plugin>
+    </plugins>
+</build>
+
+
+----
+

docs/src/main/asciidoc/index.adoc

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

docs/src/main/asciidoc/index.adoc

@@ -0,0 +1 @@
+include::spring-cloud-build.adoc[]

docs/src/main/java/org/springframework/cloud/internal/Main.java

@@ -144,7 +144,7 @@ public class Main {
 		}
 
 		public String toString() {
-			return "|" + name + " | " + (StringUtils.hasText(defaultValue) ? ("`" + defaultValue + "`") : "") + " | " + description;
+			return "|" + name + " | " + (StringUtils.hasText(defaultValue) ? ("`+++" + defaultValue + "+++`") : "") + " | " + description;
 		}
 
 	}

docs/src/main/java/org/springframework/cloud/internal/asciidoctor/ReadmeMain.java

@@ -51,15 +51,17 @@ public class ReadmeMain {
 	}
 
 	private Options options(File input, File output) {
-		Attributes attributes = new Attributes();
-		attributes.setAllowUriRead(true);
-		attributes.setAttribute("project-root", output.getParent());
-		Options options = new Options();
-		options.setSourceDir(input.getParent());
-		options.setBaseDir(input.getParent());
-		options.setAttributes(attributes);
-		options.setSafe(SafeMode.UNSAFE);
-		options.setParseHeaderOnly(true);
-		return options;
+		Attributes attributes = Attributes.builder()
+				.allowUriRead(true)
+				.attribute("project-root", output.getParent())
+				.build();
+
+		return Options.builder()
+				.sourceDir(input.getParentFile())
+				.baseDir(input.getParentFile())
+				.attributes(attributes)
+				.safe(SafeMode.UNSAFE)
+				.parseHeaderOnly(true)
+				.build();
 	}
 }

docs/src/test/java/org/springframework/cloud/internal/asciidoctor/ReadmeMainTests.java

@@ -7,7 +7,6 @@ import java.nio.file.Files;
 
 import org.junit.jupiter.api.Test;
 
-import static org.assertj.core.api.Assertions.registerCustomDateFormat;
 import static org.assertj.core.api.BDDAssertions.then;
 
 class ReadmeMainTests {

docs/src/test/resources/README.adoc

@@ -40,7 +40,7 @@ $ mvn deploy -P central -DaltReleaseDeploymentRepository=sonatype-nexus-staging:
 
 == Contributing
 
-include::https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/master/docs/src/main/asciidoc/contributing.adoc[]
+include::https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/3.1.x/docs/src/main/asciidoc/contributing.adoc[]
 
 == Flattening the POMs
 
@@ -128,7 +128,7 @@ Spring Cloud Build Docs comes with a set of attributes for asciidoctor that you
 
 [source,xml]
 ----
-include::https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/master/pom.xml[tags=attributes,indent=0]
+include::https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/3.1.x/pom.xml[tags=attributes,indent=0]
 ----
 
 == Updating the guides

pom.xml

@@ -5,7 +5,7 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>org.springframework.cloud</groupId>
 	<artifactId>spring-cloud-build</artifactId>
-	<version>3.0.0-RC1</version>
+	<version>3.1.10</version>
 	<packaging>pom</packaging>
 	<name>Spring Cloud Parent</name>
 	<description>Spring Cloud parent pom, managing plugins and dependencies for Spring
@@ -20,31 +20,27 @@
 	<url>https://spring.io/spring-cloud</url>
 	<properties>
 		<java.version>1.8</java.version>
-		<resource.delimiter>@
-		</resource.delimiter> <!-- delimiter that doesn't clash with Spring ${} placeholders -->
+		<!-- delimiter that doesn't clash with Spring ${} placeholders -->
+		<resource.delimiter>@</resource.delimiter>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
 		<maven.compiler.source>${java.version}</maven.compiler.source>
 		<maven.compiler.target>${java.version}</maven.compiler.target>
 		<main.basedir>${basedir}</main.basedir>
 		<docs.main>${project.artifactId}</docs.main>
-		<spring-boot.version>2.4.0</spring-boot.version>
-		<spring-cloud-build.version>3.0.0-RC1</spring-cloud-build.version>
+		<spring-boot.version>2.6.15</spring-boot.version>
+		<spring-cloud-build.version>3.1.10</spring-cloud-build.version>
 		<docs.resources.dir>${project.build.directory}/build-docs</docs.resources.dir>
 		<docs.classes.dir>${project.build.directory}/build-docs-classes</docs.classes.dir>
 		<refdocs.build.directory>${project.build.directory}/refdocs/</refdocs.build.directory>
-		<spring-doc-resources.version>0.2.2.RELEASE</spring-doc-resources.version>
-		<spring-asciidoctor-extensions-boot.version>0.5.0
-		</spring-asciidoctor-extensions-boot.version>
-		<spring-asciidoctor-extensions-block.version>0.5.0
-		</spring-asciidoctor-extensions-block.version>
-		<asciidoctorj-pdf.version>1.5.3</asciidoctorj-pdf.version>
-		<asciidoctorj-diagram.version>2.0.2</asciidoctorj-diagram.version>
+		<spring-asciidoctor-backends.version>0.0.7</spring-asciidoctor-backends.version>
+		<asciidoctorj-pdf.version>1.6.0</asciidoctorj-pdf.version>
+		<asciidoctorj-diagram.version>2.1.2</asciidoctorj-diagram.version>
 		<guides-project.version>${project.version}</guides-project.version>
 		<guides-update.phase>deploy</guides-update.phase>
 		<revision>${project.version}</revision>
-		<asciidoctorj.version>2.4.1</asciidoctorj.version>
-		<jruby-complete.version>9.2.7.0</jruby-complete.version>
+		<asciidoctorj.version>2.5.1</asciidoctorj.version>
+		<jruby-complete.version>9.2.19.0</jruby-complete.version>
 
 		<!-- Sonar -->
 		<sonar.java.coveragePlugin>jacoco</sonar.java.coveragePlugin>
@@ -58,39 +54,40 @@
 		<maven-eclipse-plugin.version>2.10</maven-eclipse-plugin.version>
 		<!-- for backwards compatibility, use maven-checkstyle-plugin.version -->
 		<checkstyle.version>${maven-checkstyle-plugin.version}</checkstyle.version>
-		<puppycrawl-tools-checkstyle.version>8.29</puppycrawl-tools-checkstyle.version>
-		<spring-javaformat.version>0.0.25</spring-javaformat.version>
-		<maven-failsafe-plugin.version>2.22.1</maven-failsafe-plugin.version>
-		<maven-javadoc-plugin.version>3.2.0</maven-javadoc-plugin.version>
+		<puppycrawl-tools-checkstyle.version>8.43</puppycrawl-tools-checkstyle.version>
+		<spring-javaformat.version>0.0.26</spring-javaformat.version>
+		<maven-failsafe-plugin.version>2.22.2</maven-failsafe-plugin.version>
+		<maven-javadoc-plugin.version>3.3.0</maven-javadoc-plugin.version>
 		<maven-source-plugin.version>3.2.1</maven-source-plugin.version>
 		<maven-jar-plugin.version>3.2.0</maven-jar-plugin.version>
 		<maven-antrun-plugin.version>3.0.0</maven-antrun-plugin.version>
 		<maven-surefire-plugin.version>2.22.2</maven-surefire-plugin.version>
-		<maven-surefire-report-plugin.version>3.0.0-M5</maven-surefire-report-plugin.version>
+		<maven-surefire-report-plugin.version>2.22.2</maven-surefire-report-plugin.version>
 		<maven-war-plugin.version>3.3.1</maven-war-plugin.version>
 		<exec-maven-plugin.version>1.6.0</exec-maven-plugin.version>
-		<maven-resources-plugin.version>3.1.0</maven-resources-plugin.version>
-		<git-commit-id-plugin.version>3.0.0</git-commit-id-plugin.version>
+		<maven-resources-plugin.version>3.2.0</maven-resources-plugin.version>
+		<git-commit-id-plugin.version>4.0.5</git-commit-id-plugin.version>
 		<maven-shade-plugin.version>3.2.4</maven-shade-plugin.version>
-		<maven-enforcer-plugin.version>3.0.0-M2</maven-enforcer-plugin.version>
-		<maven-gpg-plugin.version>1.6</maven-gpg-plugin.version>
-		<maven-dependency-plugin.version>3.1.2</maven-dependency-plugin.version>
-		<asciidoctor-maven-plugin.version>2.0.0</asciidoctor-maven-plugin.version>
-		<build-helper-maven-plugin.version>3.0.0</build-helper-maven-plugin.version>
-		<artifactory-maven-plugin.version>2.2.1</artifactory-maven-plugin.version>
-		<license-maven-plugin.version>1.16</license-maven-plugin.version>
-		<spring-javaformat-checkstyle.version>0.0.25</spring-javaformat-checkstyle.version>
-		<maven-checkstyle-plugin.version>3.1.0</maven-checkstyle-plugin.version>
-		<pitest-maven.version>1.5.2</pitest-maven.version>
-		<pitest-junit5-plugin.version>0.12</pitest-junit5-plugin.version>
+		<maven-enforcer-plugin.version>3.0.0-M3</maven-enforcer-plugin.version><!-- @releaser:version-check-off -->
+		<maven-gpg-plugin.version>3.2.7</maven-gpg-plugin.version>
+		<maven-dependency-plugin.version>3.2.0</maven-dependency-plugin.version>
+		<asciidoctor-maven-plugin.version>2.1.0</asciidoctor-maven-plugin.version>
+		<build-helper-maven-plugin.version>3.2.0</build-helper-maven-plugin.version>
+		<artifactory-maven-plugin.version>3.2.0</artifactory-maven-plugin.version>
+		<license-maven-plugin.version>2.0.0</license-maven-plugin.version>
+		<spring-javaformat-checkstyle.version>0.0.26</spring-javaformat-checkstyle.version>
+		<maven-checkstyle-plugin.version>3.1.2</maven-checkstyle-plugin.version>
+		<pitest-maven.version>1.6.7</pitest-maven.version>
+		<pitest-junit5-plugin.version>0.14</pitest-junit5-plugin.version>
 		<disable.checks>false</disable.checks>
 		<maven-checkstyle-plugin.failsOnError>true</maven-checkstyle-plugin.failsOnError>
 		<maven-checkstyle-plugin.failOnViolation>true
 		</maven-checkstyle-plugin.failOnViolation>
 		<maven-checkstyle-plugin.includeTestSourceDirectory>true
 		</maven-checkstyle-plugin.includeTestSourceDirectory>
-		<spring-cloud-build-checkstyle.branch>master
+		<spring-cloud-build-checkstyle.branch>main
 		</spring-cloud-build-checkstyle.branch>
+		<spring-cloud-build-docs-classifier>jar-with-dependencies</spring-cloud-build-docs-classifier>
 		<checkstyle.suppressions.file>
 			https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/${spring-cloud-build-checkstyle.branch}/spring-cloud-build-tools/src/checkstyle/checkstyle-suppressions.xml
 		</checkstyle.suppressions.file>
@@ -100,7 +97,7 @@
 		<checkstyle.additional.suppressions.file>
 			${maven.multiModuleProjectDirectory}/src/checkstyle/checkstyle-suppressions.xml
 		</checkstyle.additional.suppressions.file>
-		<nohttp-checkstyle.version>0.0.5.RELEASE</nohttp-checkstyle.version>
+		<nohttp-checkstyle.version>0.0.7</nohttp-checkstyle.version>
 		<disable.nohttp.checks>true</disable.nohttp.checks>
 		<antelopetasks.version>3.2.10</antelopetasks.version>
 		<ant-nodeps.version>1.8.1</ant-nodeps.version>
@@ -114,12 +111,37 @@
 		<generated-docs-pdf-output.dir>${project.build.directory}/generated-docs/reference/pdf</generated-docs-pdf-output.dir>
 		<javadoc.failOnError>false</javadoc.failOnError>
 		<javadoc.failOnWarnings>false</javadoc.failOnWarnings>
-		<maven-deploy-plugin.version>2.7</maven-deploy-plugin.version>
+		<maven-deploy-plugin-default.phase>deploy</maven-deploy-plugin-default.phase>
+		<maven-deploy-plugin.version>2.8.2</maven-deploy-plugin.version>
 		<maven-deploy-plugin.deployZipRepositoryId>repo.spring.io</maven-deploy-plugin.deployZipRepositoryId>
 		<maven-deploy-plugin.deployZipUrl>https://repo.spring.io/libs-snapshot-local</maven-deploy-plugin.deployZipUrl>
 		<upload-docs-zip.phase>none</upload-docs-zip.phase>
 		<readme.main.classpath>${docs.classes.dir}</readme.main.classpath>
 		<readme.class.path>readme.class.path</readme.class.path>
+		<sonar-jacoco-listeners.version>5.14.0.18788</sonar-jacoco-listeners.version>
+		<duplicate-finder-maven-plugin.version>1.5.0</duplicate-finder-maven-plugin.version>
+		<duplicate-finder-maven-plugin.printEqualFiles>false</duplicate-finder-maven-plugin.printEqualFiles>
+		<duplicate-finder-maven-plugin.failBuildInCaseOfDifferentContentConflict>false</duplicate-finder-maven-plugin.failBuildInCaseOfDifferentContentConflict>
+		<duplicate-finder-maven-plugin.failBuildInCaseOfEqualContentConflict>false</duplicate-finder-maven-plugin.failBuildInCaseOfEqualContentConflict>
+		<duplicate-finder-maven-plugin.failBuildInCaseOfConflict>true</duplicate-finder-maven-plugin.failBuildInCaseOfConflict>
+		<duplicate-finder-maven-plugin.checkCompileClasspath>true</duplicate-finder-maven-plugin.checkCompileClasspath>
+		<duplicate-finder-maven-plugin.checkRuntimeClasspath>true</duplicate-finder-maven-plugin.checkRuntimeClasspath>
+		<duplicate-finder-maven-plugin.checkTestClasspath>true</duplicate-finder-maven-plugin.checkTestClasspath>
+		<duplicate-finder-maven-plugin.skip>false</duplicate-finder-maven-plugin.skip>
+		<duplicate-finder-maven-plugin.quiet>false</duplicate-finder-maven-plugin.quiet>
+		<duplicate-finder-maven-plugin.preferLocal>true</duplicate-finder-maven-plugin.preferLocal>
+		<duplicate-finder-maven-plugin.useResultFile>true</duplicate-finder-maven-plugin.useResultFile>
+		<duplicate-finder-maven-plugin.resultFileMinClasspathCount>2</duplicate-finder-maven-plugin.resultFileMinClasspathCount>
+		<duplicate-finder-maven-plugin.resultFile>${project.build.directory}/duplicate-finder-result.xml</duplicate-finder-maven-plugin.resultFile>
+		<duplicate-finder-maven-plugin.includeBootClasspath>false</duplicate-finder-maven-plugin.includeBootClasspath>
+		<duplicate-finder-maven-plugin.bootClasspathProperty>sun.boot.class.path</duplicate-finder-maven-plugin.bootClasspathProperty>
+		<duplicate-finder-maven-plugin.useDefaultResourceIgnoreList>true</duplicate-finder-maven-plugin.useDefaultResourceIgnoreList>
+		<duplicate-finder-maven-plugin.includePomProjects>false</duplicate-finder-maven-plugin.includePomProjects>
+		<maven-gpg-plugin.phase>verify</maven-gpg-plugin.phase>
+		<unpack-docs-resources.phase>generate-resources</unpack-docs-resources.phase>
+		<generate-docs.phase>prepare-package</generate-docs.phase>
+		<copy-missing-html-files.phase>package</copy-missing-html-files.phase>
+		<package-and-attach-docs-zip.phase>package</package-and-attach-docs-zip.phase>
 	</properties>
 	<dependencyManagement>
 		<dependencies>
@@ -141,7 +163,7 @@
 			<name>Apache License, Version 2.0</name>
 			<url>https://www.apache.org/licenses/LICENSE-2.0</url>
 			<comments>
-				Copyright 2014-2015 the original author or authors.
+				Copyright 2014-2021 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.
@@ -641,6 +663,40 @@
 						</execution>
 					</executions>
 				</plugin>
+				<plugin>
+					<groupId>org.basepom.maven</groupId>
+					<artifactId>duplicate-finder-maven-plugin</artifactId>
+					<version>${duplicate-finder-maven-plugin.version}</version>
+					<executions>
+						<execution>
+							<id>duplicate-validation</id>
+							<phase>verify</phase>
+							<goals>
+								<goal>check</goal>
+							</goals>
+						</execution>
+					</executions>
+					<configuration>
+					<printEqualFiles>${duplicate-finder-maven-plugin.printEqualFiles}</printEqualFiles>
+					<failBuildInCaseOfDifferentContentConflict>${duplicate-finder-maven-plugin.failBuildInCaseOfDifferentContentConflict}</failBuildInCaseOfDifferentContentConflict>
+					<failBuildInCaseOfEqualContentConflict>${duplicate-finder-maven-plugin.failBuildInCaseOfEqualContentConflict}</failBuildInCaseOfEqualContentConflict>
+					<failBuildInCaseOfConflict>${duplicate-finder-maven-plugin.failBuildInCaseOfConflict}</failBuildInCaseOfConflict>
+					<checkCompileClasspath>${duplicate-finder-maven-plugin.checkCompileClasspath}</checkCompileClasspath>
+					<checkRuntimeClasspath>${duplicate-finder-maven-plugin.checkRuntimeClasspath}</checkRuntimeClasspath>
+					<checkTestClasspath>${duplicate-finder-maven-plugin.checkTestClasspath}</checkTestClasspath>
+					<skip>${duplicate-finder-maven-plugin.skip}</skip>
+					<quiet>${duplicate-finder-maven-plugin.quiet}</quiet>
+					<preferLocal>${duplicate-finder-maven-plugin.preferLocal}</preferLocal>
+					<useResultFile>${duplicate-finder-maven-plugin.useResultFile}</useResultFile>
+					<resultFileMinClasspathCount>${duplicate-finder-maven-plugin.resultFileMinClasspathCount}</resultFileMinClasspathCount>
+					<resultFile>${duplicate-finder-maven-plugin.resultFile}</resultFile>
+					<includeBootClasspath>${duplicate-finder-maven-plugin.includeBootClasspath}</includeBootClasspath>
+					<bootClasspathProperty>${duplicate-finder-maven-plugin.bootClasspathProperty}</bootClasspathProperty>
+					<useDefaultResourceIgnoreList>${duplicate-finder-maven-plugin.useDefaultResourceIgnoreList}</useDefaultResourceIgnoreList>
+					<includePomProjects>${duplicate-finder-maven-plugin.includePomProjects}</includePomProjects>
+					</configuration>
+				</plugin>
+
 			</plugins>
 		</pluginManagement>
 	</build>
@@ -692,7 +748,7 @@
 		<repository>
 			<id>sonatype-nexus-staging</id>
 			<name>Nexus Release Repository</name>
-			<url>https://oss.sonatype.org/service/local/staging/deploy/maven2/</url>
+			<url>https://s01.oss.sonatype.org/service/local/staging/deploy/maven2/</url>
 		</repository>
 		<snapshotRepository>
 			<id>repo.spring.io</id>
@@ -731,11 +787,6 @@
 						<enabled>false</enabled>
 					</snapshots>
 				</repository>
-				<repository>
-					<id>spring-plugins</id>
-					<name>Spring Maven Plugins Repository</name>
-					<url>https://repo.spring.io/plugins</url>
-				</repository>
 			</repositories>
 			<pluginRepositories>
 				<pluginRepository>
@@ -780,18 +831,6 @@
 				<maven-deploy-plugin.deployZipUrl>https://repo.spring.io/libs-milestone-local</maven-deploy-plugin.deployZipUrl>
 			</properties>
 		</profile>
-		<profile>
-			<id>bintray</id>
-			<distributionManagement>
-				<repository>
-					<id>bintray</id>
-					<name>Jcenter Repository</name>
-					<url>
-						https://api.bintray.com/maven/spring/jars/org.springframework.cloud:${bintray.package}
-					</url>
-				</repository>
-			</distributionManagement>
-		</profile>
 		<profile>
 			<id>central</id>
 			<build>
@@ -803,12 +842,18 @@
 						<executions>
 							<execution>
 								<id>sign-artifacts</id>
-								<phase>verify</phase>
+								<phase>${maven-gpg-plugin.phase}</phase>
 								<goals>
 									<goal>sign</goal>
 								</goals>
 							</execution>
 						</executions>
+						<configuration>
+							<gpgArguments>
+								<arg>--pinentry-mode</arg>
+								<arg>loopback</arg>
+							</gpgArguments>
+						</configuration>
 					</plugin>
 				</plugins>
 			</build>
@@ -1016,25 +1061,6 @@
 										</artifactItems>
 									</configuration>
 								</execution>
-								<execution>
-									<id>unpack-docs-resources</id>
-									<phase>generate-resources</phase>
-									<goals>
-										<goal>unpack</goal>
-									</goals>
-									<configuration>
-										<artifactItems>
-											<artifactItem>
-												<groupId>io.spring.docresources</groupId>
-												<artifactId>spring-doc-resources</artifactId>
-												<version>${spring-doc-resources.version}</version>
-												<type>zip</type>
-												<overWrite>true</overWrite>
-												<outputDirectory>${refdocs.build.directory}</outputDirectory>
-											</artifactItem>
-										</artifactItems>
-									</configuration>
-								</execution>
 							</executions>
 						</plugin>
 						<plugin>
@@ -1082,6 +1108,7 @@
 									</artifactId>
 									<version>${spring-cloud-build.version}
 									</version>
+									<classifier>${spring-cloud-build-docs-classifier}</classifier>
 									<type>jar</type>
 								</dependency>
 							</dependencies>
@@ -1101,16 +1128,6 @@
 							<artifactId>asciidoctor-maven-plugin</artifactId>
 							<version>${asciidoctor-maven-plugin.version}</version>
 							<dependencies>
-								<dependency>
-									<groupId>io.spring.asciidoctor</groupId>
-									<artifactId>spring-asciidoctor-extensions-spring-boot</artifactId>
-									<version>${spring-asciidoctor-extensions-boot.version}</version>
-								</dependency>
-								<dependency>
-									<groupId>io.spring.asciidoctor</groupId>
-									<artifactId>spring-asciidoctor-extensions-block-switch</artifactId>
-									<version>${spring-asciidoctor-extensions-block.version}</version>
-								</dependency>
 								<dependency>
 									<groupId>org.asciidoctor</groupId>
 									<artifactId>asciidoctorj-pdf</artifactId>
@@ -1121,6 +1138,11 @@
 									<artifactId>asciidoctorj-diagram</artifactId>
 									<version>${asciidoctorj-diagram.version}</version>
 								</dependency>
+								<dependency>
+									<groupId>io.spring.asciidoctor.backends</groupId>
+									<artifactId>spring-asciidoctor-backends</artifactId>
+									<version>${spring-asciidoctor-backends.version}</version>
+								</dependency>
 							</dependencies>
 							<configuration>
 								<sourceDirectory>${refdocs.build.directory}</sourceDirectory>
@@ -1171,6 +1193,7 @@
 									<raw-docs-url>${github-raw}@</raw-docs-url>
 									<project-version>${project.version}@</project-version>
 									<project-name>${docs.main}@</project-name>
+									<source-highlighter>highlight.js</source-highlighter>
 								</attributes>
 								<!-- end::attributes[] -->
 								<requires>
@@ -1180,12 +1203,12 @@
 							<executions>
 								<execution>
 									<id>generate-html-documentation</id>
-									<phase>prepare-package</phase>
+									<phase>${generate-docs.phase}</phase>
 									<goals>
 										<goal>process-asciidoc</goal>
 									</goals>
 									<configuration>
-										<backend>html5</backend>
+										<backend>spring-html</backend>
 										<sourceDocumentExtensions>
 											<sourceDocumentExtension>.adoc</sourceDocumentExtension>
 											<sourceDocumentExtension>.htmladoc</sourceDocumentExtension>
@@ -1203,7 +1226,7 @@
 											<highlightjs-theme>github</highlightjs-theme>
 											<imagesdir>./images</imagesdir>
 											<attribute-missing>warn</attribute-missing>
-											<sourceHighlighter>highlight.js</sourceHighlighter>
+											<source-highlighter>highlight.js</source-highlighter>
 										</attributes>
 										<logHandler>
 											<outputToConsole>true</outputToConsole>
@@ -1215,21 +1238,21 @@
 								</execution>
 								<execution>
 									<id>generate-htmlsingle-documentation</id>
-									<phase>prepare-package</phase>
+									<phase>${generate-docs.phase}</phase>
 									<goals>
 										<goal>process-asciidoc</goal>
 									</goals>
 									<configuration>
-										<backend>html5</backend>
+										<backend>spring-html</backend>
 										<sourceDocumentExtensions>
 											<sourceDocumentExtension>.htmlsingleadoc</sourceDocumentExtension>
 										</sourceDocumentExtensions>
 										<outputDirectory>
 											${generated-docs-singlepage-output.dir}
 										</outputDirectory>
-										<sourceHighlighter>highlight.js</sourceHighlighter>
 										<doctype>book</doctype>
 										<attributes>
+											<source-highlighter>highlight.js</source-highlighter>
 											<docinfo>shared</docinfo>
 											<stylesdir>css/</stylesdir>
 											<stylesheet>spring.css</stylesheet>
@@ -1243,7 +1266,7 @@
 								</execution>
 								<execution>
 									<id>generate-pdf-documentation</id>
-									<phase>prepare-package</phase>
+									<phase>${generate-docs.phase}</phase>
 									<goals>
 										<goal>process-asciidoc</goal>
 									</goals>
@@ -1327,7 +1350,7 @@
 								</execution>
 								<execution>
 									<id>assert-no-unresolved-links</id>
-									<phase>prepare-package</phase>
+									<phase>${generate-docs.phase}</phase>
 									<goals>
 										<goal>run</goal>
 									</goals>
@@ -1347,9 +1370,24 @@
 										</target>
 									</configuration>
 								</execution>
+								<execution>
+									<id>copy-missing-html-files</id>
+									<phase>${copy-missing-html-files.phase}</phase>
+									<goals>
+										<goal>run</goal>
+									</goals>
+									<configuration>
+										<failOnError>false</failOnError>
+										<target>
+											<copy tofile="${project.build.directory}/generated-docs/reference/htmlsingle/index.html">
+												<fileset dir="${project.build.directory}/generated-docs/reference/htmlsingle" includes="${docs.main}.html" />
+											</copy>
+										</target>
+									</configuration>
+								</execution>
 								<execution>
 									<id>package-and-attach-docs-zip</id>
-									<phase>package</phase>
+									<phase>${package-and-attach-docs-zip.phase}</phase>
 									<goals>
 										<goal>run</goal>
 									</goals>
@@ -1430,6 +1468,13 @@
 							<artifactId>maven-deploy-plugin</artifactId>
 							<version>${maven-deploy-plugin.version}</version>
 							<executions>
+								<execution>
+									<id>default-deploy</id>
+									<phase>${maven-deploy-plugin-default.phase}</phase>
+									<goals>
+										<goal>deploy</goal>
+									</goals>
+								</execution>
 								<execution>
 									<id>upload-docs-zip</id>
 									<phase>${upload-docs-zip.phase}</phase>
@@ -1452,6 +1497,35 @@
 					</plugins>
 				</pluginManagement>
 			</build>
+			<pluginRepositories>
+				<pluginRepository>
+					<id>spring-snapshots</id>
+					<name>Spring Snapshots</name>
+					<url>https://repo.spring.io/snapshot</url>
+					<snapshots>
+						<enabled>true</enabled>
+					</snapshots>
+					<releases>
+						<enabled>false</enabled>
+					</releases>
+				</pluginRepository>
+				<pluginRepository>
+					<id>spring-milestones</id>
+					<name>Spring Milestones</name>
+					<url>https://repo.spring.io/milestone</url>
+					<snapshots>
+						<enabled>false</enabled>
+					</snapshots>
+				</pluginRepository>
+				<pluginRepository>
+					<id>spring-releases</id>
+					<name>Spring Releases</name>
+					<url>https://repo.spring.io/release</url>
+					<snapshots>
+						<enabled>false</enabled>
+					</snapshots>
+				</pluginRepository>
+			</pluginRepositories>
 		</profile>
 		<profile>
 			<id>sonar</id>
@@ -1496,7 +1570,7 @@
 				<dependency>
 					<groupId>org.sonarsource.java</groupId>
 					<artifactId>sonar-jacoco-listeners</artifactId>
-					<version>3.8</version>
+					<version>${sonar-jacoco-listeners.version}</version>
 					<scope>test</scope>
 				</dependency>
 			</dependencies>
@@ -1567,5 +1641,22 @@
 				</plugins>
 			</build>
 		</profile>
+		<profile>
+			<id>CI</id>
+			<activation>
+				<property>
+					<name>env.GITHUB_API_URL</name>
+				</property>
+			</activation>
+			<properties>
+				<!-- This jar requires authentication, we don't need anything css related in a PR -->
+				<unpack-docs-resources.phase>none</unpack-docs-resources.phase>
+				<!-- Because of this we will not be catching broken docs in the PRs -->
+				<generate-docs.phase>none</generate-docs.phase>
+				<copy-missing-html-files.phase>none</copy-missing-html-files.phase>
+				<package-and-attach-docs-zip.phase>none</package-and-attach-docs-zip.phase>
+				<upload-docs-zip.phase>none</upload-docs-zip.phase>
+			</properties>
+		</profile>
 	</profiles>
 </project>

spring-cloud-build-dependencies/pom.xml

@@ -5,7 +5,7 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>org.springframework.cloud</groupId>
 	<artifactId>spring-cloud-build-dependencies</artifactId>
-	<version>3.0.0-RC1</version>
+	<version>3.1.10</version>
 	<name>spring-cloud-build-dependencies</name>
 	<packaging>pom</packaging>
 	<description>Spring Cloud Build Dependencies: an internal BOM for use with Spring
@@ -14,12 +14,13 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-dependencies</artifactId>
-		<version>2.4.0</version>
+		<version>2.6.15</version>
 		<relativePath/>
 	</parent>
 	<properties>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-		<spring-boot.version>2.4.0</spring-boot.version>
+		<spring-boot.version>2.6.15</spring-boot.version>
+		<maven-gpg-plugin.version>3.2.7</maven-gpg-plugin.version>
 	</properties>
 	<build>
 		<plugins>
@@ -62,7 +63,7 @@
 		<site>
 			<id>spring-docs</id>
 			<url>
-				scp://static.springframework.org/var/www/domains/springframework.org/static/htdocs/spring-cloud/docs/${project.artifactId}/${project.version}
+				https:/docs.spring.io/${project.artifactId}/docs/${project.version}/reference/html/
 			</url>
 		</site>
 		<repository>
@@ -87,30 +88,18 @@
 				</repository>
 			</distributionManagement>
 		</profile>
-		<profile>
-			<id>bintray</id>
-			<distributionManagement>
-				<repository>
-					<id>bintray</id>
-					<name>Jcenter Repository</name>
-					<url>
-						https://api.bintray.com/maven/spring/jars/org.springframework.cloud:${bintray.package}
-					</url>
-				</repository>
-			</distributionManagement>
-		</profile>
 		<profile>
 			<id>central</id>
 			<distributionManagement>
 				<snapshotRepository>
 					<id>sonatype-nexus-snapshots</id>
 					<name>Sonatype Nexus Snapshots</name>
-					<url>https://oss.sonatype.org/content/repositories/snapshots/</url>
+					<url>https://s01.oss.sonatype.org/content/repositories/snapshots</url>
 				</snapshotRepository>
 				<repository>
 					<id>sonatype-nexus-staging</id>
 					<name>Nexus Release Repository</name>
-					<url>https://oss.sonatype.org/service/local/staging/deploy/maven2/
+					<url>https://s01.oss.sonatype.org/service/local/staging/deploy/maven2/
 					</url>
 				</repository>
 			</distributionManagement>
@@ -119,7 +108,7 @@
 					<plugin>
 						<groupId>org.apache.maven.plugins</groupId>
 						<artifactId>maven-gpg-plugin</artifactId>
-						<version>1.6</version>
+						<version>${maven-gpg-plugin.version}</version>
 						<executions>
 							<execution>
 								<id>sign-artifacts</id>
@@ -129,6 +118,12 @@
 								</goals>
 							</execution>
 						</executions>
+						<configuration>
+							<gpgArguments>
+								<arg>--pinentry-mode</arg>
+								<arg>loopback</arg>
+							</gpgArguments>
+						</configuration>
 					</plugin>
 				</plugins>
 			</build>

spring-cloud-build-tools/pom.xml

@@ -10,7 +10,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-build</artifactId>
-		<version>3.0.0-RC1</version>
+		<version>3.1.10</version>
 	</parent>
 	<dependencies>
 		<dependency>

spring-cloud-build-tools/src/main/resources/checkstyle.xml

@@ -20,9 +20,7 @@
 		<property name="headerFile" value="${checkstyle.header.file}"/>
 		<property name="fileExtensions" value="java,groovy"/>
 	</module>
-	<module name="com.puppycrawl.tools.checkstyle.checks.NewlineAtEndOfFileCheck">
-		<property name="lineSeparator" value="lf"/>
-	</module>
+	<module name="com.puppycrawl.tools.checkstyle.checks.NewlineAtEndOfFileCheck"/>
 
 	<!-- TreeWalker Checks -->
 	<module name="com.puppycrawl.tools.checkstyle.TreeWalker">

spring-cloud-dependencies-parent/pom.xml

@@ -4,7 +4,7 @@
 		 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>
-	<version>3.0.0-RC1</version>
+	<version>3.1.10</version>
 	<artifactId>spring-cloud-dependencies-parent</artifactId>
 	<packaging>pom</packaging>
 	<name>spring-cloud-dependencies-parent</name>
@@ -19,7 +19,7 @@
 			<name>Apache License, Version 2.0</name>
 			<url>https://www.apache.org/licenses/LICENSE-2.0</url>
 			<comments>
-				Copyright 2014-2015 the original author or authors.
+				Copyright 2014-2021 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.
@@ -76,7 +76,7 @@
 		<site>
 			<id>spring-docs</id>
 			<url>
-				scp://static.springframework.org/var/www/domains/springframework.org/static/htdocs/spring-cloud/docs/${project.artifactId}/${project.version}
+				https:/docs.spring.io/${project.artifactId}/docs/${project.version}/reference/html/
 			</url>
 		</site>
 		<repository>
@@ -101,30 +101,18 @@
 				</repository>
 			</distributionManagement>
 		</profile>
-		<profile>
-			<id>bintray</id>
-			<distributionManagement>
-				<repository>
-					<id>bintray</id>
-					<name>Jcenter Repository</name>
-					<url>
-						https://api.bintray.com/maven/spring/jars/org.springframework.cloud:${bintray.package}
-					</url>
-				</repository>
-			</distributionManagement>
-		</profile>
 		<profile>
 			<id>central</id>
 			<distributionManagement>
 				<snapshotRepository>
 					<id>sonatype-nexus-snapshots</id>
 					<name>Sonatype Nexus Snapshots</name>
-					<url>https://oss.sonatype.org/content/repositories/snapshots/</url>
+					<url>https://s01.oss.sonatype.org/content/repositories/snapshots</url>
 				</snapshotRepository>
 				<repository>
 					<id>sonatype-nexus-staging</id>
 					<name>Nexus Release Repository</name>
-					<url>https://oss.sonatype.org/service/local/staging/deploy/maven2/
+					<url>https://s01.oss.sonatype.org/service/local/staging/deploy/maven2/
 					</url>
 				</repository>
 			</distributionManagement>
@@ -166,7 +154,7 @@
 					<plugin>
 						<groupId>org.apache.maven.plugins</groupId>
 						<artifactId>maven-gpg-plugin</artifactId>
-						<version>1.6</version>
+						<version>3.2.7</version>
 						<executions>
 							<execution>
 								<id>sign-artifacts</id>
@@ -176,6 +164,12 @@
 								</goals>
 							</execution>
 						</executions>
+						<configuration>
+							<gpgArguments>
+								<arg>--pinentry-mode</arg>
+								<arg>loopback</arg>
+							</gpgArguments>
+						</configuration>
 					</plugin>
 				</plugins>
 			</build>
@@ -242,7 +236,7 @@
 				<plugin>
 					<groupId>org.apache.maven.plugins</groupId>
 					<artifactId>maven-enforcer-plugin</artifactId>
-					<version>1.4.1</version>
+					<version>${maven-enforcer-plugin.version}</version>
 					<executions>
 						<execution>
 							<id>enforce-versions</id>