Fixing pointers to correct branch

.github/workflows/maven.yml

@@ -14,12 +14,16 @@ jobs:
 
     runs-on: ubuntu-latest
 
+    strategy:
+      matrix:
+        java: ["8", "11", "16"]
+
     steps:
       - uses: actions/checkout@v2
-      - name: Set up JDK
+      - name: Set up JDK 1.8
         uses: actions/setup-java@v1
         with:
-          java-version: 17
+          java-version: 1.8
       - name: Cache local Maven repository
         uses: actions/cache@v2
         with:
@@ -28,4 +32,4 @@ jobs:
           restore-keys: |
             ${{ runner.os }}-maven-
       - name: Build with Maven
-        run: ./mvnw clean install -B -U -Pspring
+        run: ./mvnw clean install -B -U

.gitignore

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

.mvn/maven.config

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

.mvn/wrapper/maven-wrapper.properties

@@ -1,2 +1,2 @@
-distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.8.4/apache-maven-3.8.4-bin.zip
+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.6.3/apache-maven-3.6.3-bin.zip
 wrapperUrl=https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar

.sdkmanrc

@@ -1,3 +0,0 @@
-# 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

@@ -227,57 +227,6 @@ Go to `File` -> `Settings` -> `Other settings` -> `Checkstyle`. There click on t
 
 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.

docs/pom.xml

@@ -10,7 +10,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-build</artifactId>
-		<version>4.0.0-M4</version>
+		<version>3.0.6-SNAPSHOT</version>
 	</parent>
 	<properties>
 		<docs.main>spring-cloud-build</docs.main>
@@ -85,7 +85,7 @@
 			</plugin>
 			<plugin>
 				<artifactId>maven-deploy-plugin</artifactId>
-				<version>${maven-deploy-plugin.version}</version>
+				<version>2.8.2</version>
 			</plugin>
 		</plugins>
 	</build>

docs/src/main/asciidoc/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/main/docs/src/main/asciidoc/contributing.adoc[]
+include::https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/3.0.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/main/pom.xml[tags=attributes,indent=0]
+include::https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/3.0.x/pom.xml[tags=attributes,indent=0]
 ----
 
 == Updating the guides

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

@@ -0,0 +1,91 @@
+=== Basic Compile and Test
+
+To build the source you will need to install JDK {jdkversion}.
+
+Spring Cloud uses Maven for most build-related activities, and you
+should be able to get off the ground quite quickly by cloning the
+project you are interested in and typing
+
+----
+$ ./mvnw install
+----
+
+NOTE: You can also install Maven (>=3.3.3) yourself and run the `mvn` command
+in place of `./mvnw` in the examples below. If you do that you also
+might need to add `-P spring` if your local Maven settings do not
+contain repository declarations for spring pre-release artifacts.
+
+NOTE: Be aware that you might need to increase the amount of memory
+available to Maven by setting a `MAVEN_OPTS` environment variable with
+a value like `-Xmx512m -XX:MaxPermSize=128m`. We try to cover this in
+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 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
+
+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
+parsing or rendering it, just copying it to `${main.basedir}`
+(defaults to `${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
+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://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
+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
+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".
+
+NOTE: Older versions of m2e do not support Maven 3.3, so once the
+projects are imported into Eclipse you will also need to tell
+m2eclipse to use the right profile for the projects.  If you
+see many different errors related to the POMs in the projects, check
+that you have an up to date installation.  If you can't upgrade m2e,
+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
+If you prefer not to use m2eclipse you can generate eclipse project metadata using the
+following command:
+
+[indent=0]
+----
+	$ ./mvnw eclipse:eclipse
+----
+
+The generated eclipse projects can be imported by selecting `import existing projects`
+from the `file` menu.
+

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

@@ -1,3 +1,4 @@
+:jdkversion: 1.8
 
-include::https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/main/docs/src/main/asciidoc/building.adoc[]
+include::https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/3.0.x/docs/src/main/asciidoc/building-base.adoc[]
 

docs/src/main/asciidoc/building.adoc

@@ -1,79 +1,3 @@
-:jdkversion: 17
-
-=== Basic Compile and Test
-
-To build the source you will need to install JDK {jdkversion}.
-
-Spring Cloud uses Maven for most build-related activities, and you
-should be able to get off the ground quite quickly by cloning the
-project you are interested in and typing
-
-----
-$ ./mvnw install
-----
-
-NOTE: You can also install Maven (>=3.3.3) yourself and run the `mvn` command
-in place of `./mvnw` in the examples below. If you do that you also
-might need to add `-P spring` if your local Maven settings do not
-contain repository declarations for spring pre-release artifacts.
-
-NOTE: Be aware that you might need to increase the amount of memory
-available to Maven by setting a `MAVEN_OPTS` environment variable with
-a value like `-Xmx512m -XX:MaxPermSize=128m`. We try to cover this in
-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.
-
-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.
-
-
-=== 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
-parsing or rendering it, just copying it to `${main.basedir}`
-(defaults to `${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
-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://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
-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
-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".
-
-NOTE: Older versions of m2e do not support Maven 3.3, so once the
-projects are imported into Eclipse you will also need to tell
-m2eclipse to use the right profile for the projects.  If you
-see many different errors related to the POMs in the projects, check
-that you have an up to date installation.  If you can't upgrade m2e,
-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
-If you prefer not to use m2eclipse you can generate eclipse project metadata using the
-following command:
-
-[indent=0]
-----
-	$ ./mvnw eclipse:eclipse
-----
-
-The generated eclipse projects can be imported by selecting `import existing projects`
-from the `file` menu.
+:jdkversion: 1.8
 
+include::https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/3.0.x/docs/src/main/asciidoc/building-base.adoc[]

docs/src/main/asciidoc/contributing.adoc

@@ -177,54 +177,3 @@ Go to `File` -> `Settings` -> `Other settings` -> `Checkstyle`. There click on t
 - `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 @@
-include::spring-cloud-build.adoc[]

docs/src/main/asciidoc/index.adoc

@@ -0,0 +1 @@
+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/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/main/docs/src/main/asciidoc/contributing.adoc[]
+include::https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/3.0.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/main/pom.xml[tags=attributes,indent=0]
+include::https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/3.0.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>4.0.0-M4</version>
+	<version>3.0.6-SNAPSHOT</version>
 	<packaging>pom</packaging>
 	<name>Spring Cloud Parent</name>
 	<description>Spring Cloud parent pom, managing plugins and dependencies for Spring
@@ -19,32 +19,32 @@
 	</modules>
 	<url>https://spring.io/spring-cloud</url>
 	<properties>
-		<java.version>17</java.version>
-		<!-- delimiter that doesn't clash with Spring ${} placeholders -->
-		<resource.delimiter>@</resource.delimiter>
+		<java.version>1.8</java.version>
+		<resource.delimiter>@
+		</resource.delimiter> <!-- delimiter that doesn't clash with Spring ${} placeholders -->
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
 		<maven.compiler.source>${java.version}</maven.compiler.source>
 		<maven.compiler.target>${java.version}</maven.compiler.target>
 		<main.basedir>${basedir}</main.basedir>
 		<docs.main>${project.artifactId}</docs.main>
-		<spring-boot.version>3.0.0-M4</spring-boot.version>
-		<spring-cloud-build.version>4.0.0-M4</spring-cloud-build.version>
+		<spring-boot.version>2.4.13</spring-boot.version>
+		<spring-cloud-build.version>3.0.6-SNAPSHOT</spring-cloud-build.version>
 		<docs.resources.dir>${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>0.2.4</spring-doc-resources.version>
+		<spring-doc-resources.version>0.2.2.RELEASE</spring-doc-resources.version>
 		<spring-asciidoctor-extensions-boot.version>0.6.0
 		</spring-asciidoctor-extensions-boot.version>
 		<spring-asciidoctor-extensions-block.version>0.6.0
 		</spring-asciidoctor-extensions-block.version>
-		<asciidoctorj-pdf.version>1.6.2</asciidoctorj-pdf.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>2.5.3</asciidoctorj.version>
-		<jruby-complete.version>9.2.19.0</jruby-complete.version>
+		<asciidoctorj.version>2.5.1</asciidoctorj.version>
+		<jruby-complete.version>9.2.7.0</jruby-complete.version>
 
 		<!-- Sonar -->
 		<sonar.java.coveragePlugin>jacoco</sonar.java.coveragePlugin>
@@ -54,35 +54,35 @@
 		<sonar.language>java</sonar.language>
 
 		<!-- Plugins -->
-		<maven-compiler-plugin.version>3.9.0</maven-compiler-plugin.version>
+		<maven-compiler-plugin.version>3.8.1</maven-compiler-plugin.version>
 		<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>9.2.1</puppycrawl-tools-checkstyle.version>
-		<spring-javaformat.version>0.0.29</spring-javaformat.version>
-		<maven-failsafe-plugin.version>2.22.2</maven-failsafe-plugin.version>
-		<maven-javadoc-plugin.version>3.3.1</maven-javadoc-plugin.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>
 		<maven-source-plugin.version>3.2.1</maven-source-plugin.version>
-		<maven-jar-plugin.version>3.2.2</maven-jar-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>2.22.2</maven-surefire-report-plugin.version>
-		<maven-war-plugin.version>3.3.2</maven-war-plugin.version>
-		<exec-maven-plugin.version>3.0.0</exec-maven-plugin.version>
-		<maven-resources-plugin.version>3.2.0</maven-resources-plugin.version>
-		<git-commit-id-plugin.version>4.9.10</git-commit-id-plugin.version>
+		<maven-surefire-report-plugin.version>3.0.0-M5</maven-surefire-report-plugin.version><!-- @releaser:version-check-off -->
+		<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-shade-plugin.version>3.2.4</maven-shade-plugin.version>
-		<maven-enforcer-plugin.version>3.0.0</maven-enforcer-plugin.version><!-- @releaser:version-check-off -->
-		<maven-gpg-plugin.version>3.2.0</maven-gpg-plugin.version>
-		<maven-dependency-plugin.version>3.2.0</maven-dependency-plugin.version>
+		<maven-enforcer-plugin.version>3.0.0-M2</maven-enforcer-plugin.version><!-- @releaser:version-check-off -->
+		<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>2.1.0</asciidoctor-maven-plugin.version>
-		<build-helper-maven-plugin.version>3.2.0</build-helper-maven-plugin.version>
-		<artifactory-maven-plugin.version>3.2.3</artifactory-maven-plugin.version>
-		<license-maven-plugin.version>2.0.0</license-maven-plugin.version>
-		<spring-javaformat-checkstyle.version>0.0.29</spring-javaformat-checkstyle.version>
-		<maven-checkstyle-plugin.version>3.1.2</maven-checkstyle-plugin.version>
-		<pitest-maven.version>1.7.3</pitest-maven.version>
-		<pitest-junit5-plugin.version>0.15</pitest-junit5-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>
 		<disable.checks>false</disable.checks>
 		<maven-checkstyle-plugin.failsOnError>true</maven-checkstyle-plugin.failsOnError>
 		<maven-checkstyle-plugin.failOnViolation>true
@@ -100,7 +100,7 @@
 		<checkstyle.additional.suppressions.file>
 			${maven.multiModuleProjectDirectory}/src/checkstyle/checkstyle-suppressions.xml
 		</checkstyle.additional.suppressions.file>
-		<nohttp-checkstyle.version>0.0.10</nohttp-checkstyle.version>
+		<nohttp-checkstyle.version>0.0.5.RELEASE</nohttp-checkstyle.version>
 		<disable.nohttp.checks>true</disable.nohttp.checks>
 		<antelopetasks.version>3.2.10</antelopetasks.version>
 		<ant-nodeps.version>1.8.1</ant-nodeps.version>
@@ -114,31 +114,12 @@
 		<generated-docs-pdf-output.dir>${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>2.8.2</maven-deploy-plugin.version>
+		<maven-deploy-plugin.version>2.7</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>${docs.classes.dir}</readme.main.classpath>
 		<readme.class.path>readme.class.path</readme.class.path>
-		<sonar-jacoco-listeners.version>5.14.0.18788</sonar-jacoco-listeners.version>
-		<duplicate-finder-maven-plugin.version>1.5.1</duplicate-finder-maven-plugin.version>
-		<duplicate-finder-maven-plugin.printEqualFiles>false</duplicate-finder-maven-plugin.printEqualFiles>
-		<duplicate-finder-maven-plugin.failBuildInCaseOfDifferentContentConflict>false</duplicate-finder-maven-plugin.failBuildInCaseOfDifferentContentConflict>
-		<duplicate-finder-maven-plugin.failBuildInCaseOfEqualContentConflict>false</duplicate-finder-maven-plugin.failBuildInCaseOfEqualContentConflict>
-		<duplicate-finder-maven-plugin.failBuildInCaseOfConflict>true</duplicate-finder-maven-plugin.failBuildInCaseOfConflict>
-		<duplicate-finder-maven-plugin.checkCompileClasspath>true</duplicate-finder-maven-plugin.checkCompileClasspath>
-		<duplicate-finder-maven-plugin.checkRuntimeClasspath>true</duplicate-finder-maven-plugin.checkRuntimeClasspath>
-		<duplicate-finder-maven-plugin.checkTestClasspath>true</duplicate-finder-maven-plugin.checkTestClasspath>
-		<duplicate-finder-maven-plugin.skip>false</duplicate-finder-maven-plugin.skip>
-		<duplicate-finder-maven-plugin.quiet>false</duplicate-finder-maven-plugin.quiet>
-		<duplicate-finder-maven-plugin.preferLocal>true</duplicate-finder-maven-plugin.preferLocal>
-		<duplicate-finder-maven-plugin.useResultFile>true</duplicate-finder-maven-plugin.useResultFile>
-		<duplicate-finder-maven-plugin.resultFileMinClasspathCount>2</duplicate-finder-maven-plugin.resultFileMinClasspathCount>
-		<duplicate-finder-maven-plugin.resultFile>${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>
 	</properties>
 	<dependencyManagement>
 		<dependencies>
@@ -160,7 +141,7 @@
 			<name>Apache License, Version 2.0</name>
 			<url>https://www.apache.org/licenses/LICENSE-2.0</url>
 			<comments>
-				Copyright 2014-2021 the original author or authors.
+				Copyright 2014-2015 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.
@@ -660,40 +641,6 @@
 						</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>
@@ -1488,35 +1435,6 @@
 					</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>
@@ -1528,7 +1446,7 @@
 					<plugin>
 						<groupId>org.jacoco</groupId>
 						<artifactId>jacoco-maven-plugin</artifactId>
-						<version>0.8.7</version>
+						<version>0.8.5</version>
 						<configuration>
 							<destFile>${sonar.jacoco.reportPath}</destFile>
 							<append>true</append>
@@ -1561,7 +1479,7 @@
 				<dependency>
 					<groupId>org.sonarsource.java</groupId>
 					<artifactId>sonar-jacoco-listeners</artifactId>
-					<version>${sonar-jacoco-listeners.version}</version>
+					<version>3.8</version>
 					<scope>test</scope>
 				</dependency>
 			</dependencies>

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>4.0.0-M4</version>
+	<version>3.0.6-SNAPSHOT</version>
 	<name>spring-cloud-build-dependencies</name>
 	<packaging>pom</packaging>
 	<description>Spring Cloud Build Dependencies: an internal BOM for use with Spring
@@ -14,13 +14,12 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-dependencies</artifactId>
-		<version>3.0.0-M4</version>
+		<version>2.4.13</version>
 		<relativePath/>
 	</parent>
 	<properties>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-		<spring-boot.version>3.0.0-M4</spring-boot.version>
-		<maven-gpg-plugin.version>3.0.1</maven-gpg-plugin.version>
+		<spring-boot.version>2.4.13</spring-boot.version>
 	</properties>
 	<build>
 		<plugins>
@@ -108,7 +107,7 @@
 					<plugin>
 						<groupId>org.apache.maven.plugins</groupId>
 						<artifactId>maven-gpg-plugin</artifactId>
-						<version>${maven-gpg-plugin.version}</version>
+						<version>1.6</version>
 						<executions>
 							<execution>
 								<id>sign-artifacts</id>

spring-cloud-build-tools/pom.xml

@@ -10,7 +10,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-build</artifactId>
-		<version>4.0.0-M4</version>
+		<version>3.0.6-SNAPSHOT</version>
 	</parent>
 	<dependencies>
 		<dependency>

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

@@ -20,7 +20,9 @@
 		<property name="headerFile" value="${checkstyle.header.file}"/>
 		<property name="fileExtensions" value="java,groovy"/>
 	</module>
-	<module name="com.puppycrawl.tools.checkstyle.checks.NewlineAtEndOfFileCheck"/>
+	<module name="com.puppycrawl.tools.checkstyle.checks.NewlineAtEndOfFileCheck">
+		<property name="lineSeparator" value="lf"/>
+	</module>
 
 	<!-- 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>4.0.0-M4</version>
+	<version>3.0.6-SNAPSHOT</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 2014-2021 the original author or authors.
+				Copyright 2014-2015 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.
@@ -230,7 +230,7 @@
 				<plugin>
 					<groupId>org.apache.maven.plugins</groupId>
 					<artifactId>maven-enforcer-plugin</artifactId>
-					<version>${maven-enforcer-plugin.version}</version>
+					<version>1.4.1</version>
 					<executions>
 						<execution>
 							<id>enforce-versions</id>