Switch CI pipeline to a JDK17 baseline

This commit introduces a new `spring-framework-6.0.x` CI pipeline with
JDK 17 baseline.

Note that Kotlin still uses a JDK11 baseline for now, this will be
addressed in gh-27413.

Closes gh-27409

buildSrc/src/main/java/org/springframework/build/compile/CompilerConventionsPlugin.java

@@ -24,7 +24,6 @@ import org.gradle.api.Plugin;
 import org.gradle.api.Project;
 import org.gradle.api.plugins.JavaLibraryPlugin;
 import org.gradle.api.plugins.JavaPlugin;
-import org.gradle.api.plugins.JavaPluginConvention;
 import org.gradle.api.tasks.compile.JavaCompile;
 
 /**
@@ -70,7 +69,6 @@ public class CompilerConventionsPlugin implements Plugin<Project> {
 	 * @param project the current project
 	 */
 	private void applyJavaCompileConventions(Project project) {
-		JavaPluginConvention java = project.getConvention().getPlugin(JavaPluginConvention.class);
 		project.getTasks().withType(JavaCompile.class)
 				.matching(compileTask -> compileTask.getName().equals(JavaPlugin.COMPILE_JAVA_TASK_NAME))
 				.forEach(compileTask -> {

buildSrc/src/main/java/org/springframework/build/optional/OptionalDependenciesPlugin.java

@@ -19,12 +19,9 @@ package org.springframework.build.optional;
 import org.gradle.api.Plugin;
 import org.gradle.api.Project;
 import org.gradle.api.artifacts.Configuration;
-import org.gradle.api.attributes.Usage;
 import org.gradle.api.plugins.JavaPlugin;
-import org.gradle.api.plugins.JavaPluginConvention;
+import org.gradle.api.plugins.JavaPluginExtension;
 import org.gradle.api.tasks.SourceSetContainer;
-import org.gradle.plugins.ide.eclipse.EclipsePlugin;
-import org.gradle.plugins.ide.eclipse.model.EclipseModel;
 
 /**
  * A {@code Plugin} that adds support for Maven-style optional dependencies. Creates a new
@@ -47,7 +44,7 @@ public class OptionalDependenciesPlugin implements Plugin<Project> {
 		optional.setCanBeConsumed(false);
 		optional.setCanBeResolved(false);
 		project.getPlugins().withType(JavaPlugin.class, (javaPlugin) -> {
-			SourceSetContainer sourceSets = project.getConvention().getPlugin(JavaPluginConvention.class)
+			SourceSetContainer sourceSets = project.getExtensions().getByType(JavaPluginExtension.class)
 					.getSourceSets();
 			sourceSets.all((sourceSet) -> {
 				project.getConfigurations().getByName(sourceSet.getCompileClasspathConfigurationName()).extendsFrom(optional);

ci/images/ci-image/Dockerfile

@@ -2,10 +2,9 @@ FROM ubuntu:focal-20210827
 
 ADD setup.sh /setup.sh
 ADD get-jdk-url.sh /get-jdk-url.sh
-RUN ./setup.sh java8
+RUN ./setup.sh
 
-ENV JAVA_HOME /opt/openjdk/java8
-ENV JDK11 /opt/openjdk/java11
-ENV JDK16 /opt/openjdk/java16
+ENV JAVA_HOME /opt/openjdk/java17
+ENV JDK17 /opt/openjdk/java17
 
 ENV PATH $JAVA_HOME/bin:$PATH

ci/images/get-jdk-url.sh

@@ -2,15 +2,9 @@
 set -e
 
 case "$1" in
-	java8)
-		 echo "https://github.com/adoptium/temurin8-binaries/releases/download/jdk8u302-b08/OpenJDK8U-jdk_x64_linux_hotspot_8u302b08.tar.gz"
+	java17)
+		 echo "https://github.com/adoptium/temurin17-binaries/releases/download/jdk17-2021-09-15-08-15-beta/OpenJDK17-jdk_x64_linux_hotspot_2021-09-15-08-15.tar.gz"
 	;;
-	java11)
-		 echo "https://github.com/adoptium/temurin11-binaries/releases/download/jdk-11.0.12%2B7/OpenJDK11U-jdk_x64_linux_hotspot_11.0.12_7.tar.gz"
-	;;
-  java16)
-		 echo "https://github.com/adoptium/temurin16-binaries/releases/download/jdk-16.0.2%2B7/OpenJDK16U-jdk_x64_linux_hotspot_16.0.2_7.tar.gz"
-  ;;
   *)
 		echo $"Unknown java version"
 		exit 1

ci/images/setup.sh

@@ -22,7 +22,7 @@ curl --output /opt/concourse-release-scripts.jar https://repo.spring.io/release/
 
 mkdir -p /opt/openjdk
 pushd /opt/openjdk > /dev/null
-for jdk in java8 java11 java16
+for jdk in java17
 do
   JDK_URL=$( /get-jdk-url.sh $jdk )
   mkdir $jdk

ci/parameters.yml

@@ -1,12 +1,9 @@
-email-server: "smtp.svc.pivotal.io"
-email-from: "ci@spring.io"
-email-to: ["spring-framework-dev@pivotal.io"]
 github-repo: "https://github.com/spring-projects/spring-framework.git"
 github-repo-name: "spring-projects/spring-framework"
 docker-hub-organization: "springci"
 artifactory-server: "https://repo.spring.io"
 branch: "main"
-milestone: "5.3.x"
+milestone: "6.0.x"
 build-name: "spring-framework"
 pipeline-name: "spring-framework"
 concourse-url: "https://ci.spring.io"

ci/pipeline.yml

@@ -67,13 +67,6 @@ resources:
   icon: github
   source:
     <<: *git-repo-resource-source
-- name: every-morning
-  type: time
-  icon: alarm
-  source:
-    start: 8:00 AM
-    stop: 9:00 AM
-    location: Europe/Vienna
 - name: ci-images-git-repo
   type: git
   icon: github
@@ -86,7 +79,7 @@ resources:
   icon: docker
   source:
     <<: *docker-resource-source
-    repository: ((docker-hub-organization))/spring-framework-ci
+    repository: ((docker-hub-organization))/spring-framework-ci-jdk17
 - name: artifactory-repo
   type: artifactory-resource
   icon: package-variant
@@ -111,22 +104,6 @@ resources:
     access_token: ((github-ci-status-token))
     branch: ((branch))
     context: build
-- name: repo-status-jdk11-build
-  type: github-status-resource
-  icon: eye-check-outline
-  source:
-    repository: ((github-repo-name))
-    access_token: ((github-ci-status-token))
-    branch: ((branch))
-    context: jdk11-build
-- name: repo-status-jdk16-build
-  type: github-status-resource
-  icon: eye-check-outline
-  source:
-    repository: ((github-repo-name))
-    access_token: ((github-ci-status-token))
-    branch: ((branch))
-    context: jdk16-build
 - name: slack-alert
   type: slack-notification
   icon: slack
@@ -216,62 +193,6 @@ jobs:
           "zip.type": "schema"
     get_params:
       threads: 8
-- name: jdk11-build
-  serial: true
-  public: true
-  plan:
-  - get: ci-image
-  - get: git-repo
-  - get: every-morning
-    trigger: true
-  - put: repo-status-jdk11-build
-    params: { state: "pending", commit: "git-repo" }
-  - do:
-    - task: check-project
-      image: ci-image
-      file: git-repo/ci/tasks/check-project.yml
-      privileged: true
-      timeout: ((task-timeout))
-      params:
-        TEST_TOOLCHAIN: 11
-        <<: *build-project-task-params
-    on_failure:
-      do:
-      - put: repo-status-jdk11-build
-        params: { state: "failure", commit: "git-repo" }
-      - put: slack-alert
-        params:
-          <<: *slack-fail-params
-  - put: repo-status-jdk11-build
-    params: { state: "success", commit: "git-repo" }
-- name: jdk16-build
-  serial: true
-  public: true
-  plan:
-    - get: ci-image
-    - get: git-repo
-    - get: every-morning
-      trigger: true
-    - put: repo-status-jdk16-build
-      params: { state: "pending", commit: "git-repo" }
-    - do:
-      - task: check-project
-        image: ci-image
-        file: git-repo/ci/tasks/check-project.yml
-        privileged: true
-        timeout: ((task-timeout))
-        params:
-          TEST_TOOLCHAIN: 15
-          <<: *build-project-task-params
-      on_failure:
-        do:
-          - put: repo-status-jdk16-build
-            params: { state: "failure", commit: "git-repo" }
-          - put: slack-alert
-            params:
-              <<: *slack-fail-params
-    - put: repo-status-jdk16-build
-      params: { state: "success", commit: "git-repo" }
 - name: build-pull-requests
   serial: true
   public: true
@@ -453,7 +374,7 @@ jobs:
 
 groups:
 - name: "builds"
-  jobs: ["build", "jdk11-build", "jdk16-build"]
+  jobs: ["build"]
 - name: "releases"
   jobs: ["stage-milestone", "stage-rc", "stage-release", "promote-milestone", "promote-rc", "promote-release", "create-github-release"]
 - name: "ci-images"

ci/scripts/check-project.sh

@@ -4,6 +4,6 @@ set -e
 source $(dirname $0)/common.sh
 
 pushd git-repo > /dev/null
-./gradlew -Dorg.gradle.internal.launcher.welcomeMessageEnabled=false -Porg.gradle.java.installations.fromEnv=JDK11,JDK15 \
+./gradlew -Dorg.gradle.internal.launcher.welcomeMessageEnabled=false -Porg.gradle.java.installations.fromEnv=JDK17 \
   -PmainToolchain=${MAIN_TOOLCHAIN} -PtestToolchain=${TEST_TOOLCHAIN} --no-daemon --max-workers=4 check
 popd > /dev/null

gradle/toolchains.gradle

@@ -11,7 +11,7 @@
  *     <li>a JDK11 toolchain for compiling and running the test SourceSet
  * </ul>
  *
- * By default, the build will fall back to using the current JDK and 1.8 language level for all sourceSets.
+ * By default, the build will fall back to using the current JDK and 17 language level for all sourceSets.
  *
  * Gradle will automatically detect JDK distributions in well-known locations.
  * The following command will list the detected JDKs on the host.
@@ -44,7 +44,7 @@ def mainToolchainLanguageVersion() {
 	if (mainToolchainConfigured()) {
 		return JavaLanguageVersion.of(project.mainToolchain.toString())
 	}
-	return JavaLanguageVersion.of(8)
+	return JavaLanguageVersion.of(17)
 }
 
 def testToolchainLanguageVersion() {
@@ -64,9 +64,9 @@ plugins.withType(JavaPlugin) {
 		}
 	}
 	else {
-		// Fallback to JDK8
+		// Fallback to JDK17
 		java {
-			sourceCompatibility = JavaVersion.VERSION_1_8
+			sourceCompatibility = JavaVersion.VERSION_17
 		}
 	}
 	// Configure a specific Java Toolchain for compiling and running tests if the 'testToolchain' property is defined
@@ -86,10 +86,10 @@ plugins.withType(JavaPlugin) {
 }
 
 plugins.withType(GroovyPlugin) {
-	// Fallback to JDK8
+	// Fallback to JDK17
 	if (!mainToolchainConfigured()) {
 		compileGroovy {
-			sourceCompatibility = JavaVersion.VERSION_1_8
+			sourceCompatibility = JavaVersion.VERSION_17
 		}
 	}
 }
@@ -102,7 +102,7 @@ pluginManager.withPlugin("kotlin") {
 			languageVersion = mainLanguageVersion
 		}
 		// See https://kotlinlang.org/docs/gradle.html#attributes-specific-for-jvm
-		def javaVersion = mainLanguageVersion.toString() == '8' ? '1.8' : mainLanguageVersion.toString()
+		def javaVersion = mainLanguageVersion.toString()
 		compileKotlin {
 			kotlinOptions {
 				jvmTarget = javaVersion
@@ -118,15 +118,15 @@ pluginManager.withPlugin("kotlin") {
 		}
 	}
 	else {
-		// Fallback to JDK8
+		// Fallback to JDK11
 		compileKotlin {
 			kotlinOptions {
-				jvmTarget = '1.8'
+				jvmTarget = '11'
 			}
 		}
 		compileTestKotlin {
 			kotlinOptions {
-				jvmTarget = '1.8'
+				jvmTarget = '11'
 			}
 		}
 	}