HSEARCH-5155 Build with JDK 21

Meaning use JDK 21 for building main artifacts; the baseline (JDK 11) will not change.

.github/workflows/build.yml

@@ -63,10 +63,10 @@ jobs:
       matrix:
         os:
           - {
-            name: "Linux JDK 17",
+            name: "Linux JDK 21",
             runs-on: 'ubuntu-latest',
             java: {
-              version: 17
+              version: 21
             },
             maven: {
               # Since we only start an Elasticsearch container on Linux we add the profile to enable container reuse here:
@@ -77,10 +77,10 @@ jobs:
           # so we can't run Elasticsearch tests.
           # See https://github.com/actions/runner-images/issues/1143#issuecomment-972929995
           - {
-            name: "Windows JDK 17",
+            name: "Windows JDK 21",
             runs-on: 'windows-latest',
             java: {
-              version: 17
+              version: 21
             },
             maven: {
               args: '-Dtest.elasticsearch.skip=true'

Jenkinsfile

@@ -147,7 +147,7 @@ import org.hibernate.jenkins.pipeline.helpers.alternative.AlternativeMultiMap
  *         settingsId: ...
  */
 
-@Field final String DEFAULT_JDK_TOOL = 'OpenJDK 17 Latest'
+@Field final String DEFAULT_JDK_TOOL = 'OpenJDK 21 Latest'
 @Field final String MAVEN_TOOL = 'Apache Maven 3.9'
 
 // Default node pattern, to be used for resource-intensive stages.
@@ -189,14 +189,13 @@ stage('Configure') {
 					new JdkBuildEnvironment(version: '11', testCompilerTool: 'OpenJDK 11 Latest',
 							condition: TestCondition.AFTER_MERGE),
 					new JdkBuildEnvironment(version: '17', testCompilerTool: 'OpenJDK 17 Latest',
+							condition: TestCondition.AFTER_MERGE),
+					new JdkBuildEnvironment(version: '21', testCompilerTool: 'OpenJDK 21 Latest',
 							condition: TestCondition.BEFORE_MERGE,
 							isDefault: true),
 					// We want to enable preview features when testing newer builds of OpenJDK:
 					// even if we don't use these features, just enabling them can cause side effects
 					// and it's useful to test that.
-					new JdkBuildEnvironment(version: '21', testCompilerTool: 'OpenJDK 21 Latest',
-							testLauncherArgs: '--enable-preview',
-							condition: TestCondition.AFTER_MERGE),
 					new JdkBuildEnvironment(version: '22', testCompilerTool: 'OpenJDK 22 Latest',
 							testLauncherArgs: '--enable-preview',
 							condition: TestCondition.AFTER_MERGE),

ci/dependency-update/Jenkinsfile

@@ -37,7 +37,6 @@ Map settings() {
 			]
 		case 'lucene10':
 			return [
-					testCompilerTool: 'OpenJDK 21 Latest',
 					updateProperties: ['version.org.apache.lucene'],
 					onlyRunTestDependingOn: ['hibernate-search-backend-lucene'],
 					additionalMavenArgs: '-Dtest.elasticsearch.skip=true -pl :hibernate-search-engine,:hibernate-search-backend-lucene,:hibernate-search-util-internal-integrationtest-backend-lucene,:hibernate-search-v5migrationhelper-engine'
@@ -76,7 +75,7 @@ def pullContainerImages() {
 }
 
 def withMavenWorkspace(Closure body) {
-	def actualJdk = settings().testCompilerTool == null ? 'OpenJDK 17 Latest' : settings().testCompilerTool
+	def actualJdk = settings().testCompilerTool == null ? 'OpenJDK 21 Latest' : settings().testCompilerTool
 	withMaven(jdk: actualJdk, maven: 'Apache Maven 3.9',
 			mavenLocalRepo: env.WORKSPACE_TMP + '/.m2repository',
 			options: [

ci/performance/elasticsearch/Jenkinsfile

@@ -12,7 +12,7 @@ import groovy.transform.Field
 import org.hibernate.jenkins.pipeline.helpers.job.JobHelper
 
 @Field final String MAVEN_TOOL = 'Apache Maven 3.9'
-@Field final String JDK_TOOL = 'OpenJDK 11 Latest'
+@Field final String JDK_TOOL = 'OpenJDK 21 Latest'
 
 // Performance node pattern, to be used for stages involving performance tests.
 @Field final String PERFORMANCE_NODE_PATTERN = 'Performance'

ci/performance/lucene/Jenkinsfile

@@ -12,7 +12,7 @@ import groovy.transform.Field
 import org.hibernate.jenkins.pipeline.helpers.job.JobHelper
 
 @Field final String MAVEN_TOOL = 'Apache Maven 3.9'
-@Field final String JDK_TOOL = 'OpenJDK 11 Latest'
+@Field final String JDK_TOOL = 'OpenJDK 21 Latest'
 
 // Performance node pattern, to be used for stages involving performance tests.
 @Field final String PERFORMANCE_NODE_PATTERN = 'Performance'

ci/release/Jenkinsfile

@@ -13,7 +13,7 @@ pipeline {
 	}
 	tools {
 		maven 'Apache Maven 3.9'
-		jdk 'OpenJDK 17 Latest'
+		jdk 'OpenJDK 21 Latest'
 	}
 	options {
 		buildDiscarder logRotator(daysToKeepStr: '30', numToKeepStr: '10')

integrationtest/performance/pom.xml

@@ -12,14 +12,6 @@
     <name>Hibernate Search ITs - Performance - Parent POM</name>
     <description>Parent POM of Hibernate Search performance tests</description>
 
-    <properties>
-        <!-- JMH or the annotation processor plugin has some trouble with newer JDKs.
-             Let's not bother, and use the same JDK as Maven, unlike other integration tests. -->
-        <java-version.main.release>8</java-version.main.release>
-        <java-version.main.compiler.java_home>${java.home}</java-version.main.compiler.java_home>
-        <java-version.main.compiler>${java-version.main.compiler.java_home}/bin/javac</java-version.main.compiler>
-    </properties>
-
     <modules>
         <module>backend/base</module>
         <module>backend/lucene</module>

pom.xml

@@ -202,7 +202,7 @@
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
 
         <!-- JDK version required for the build; we target 11 but require at least 17 for the build -->
-        <jdk.min.version>17</jdk.min.version>
+        <jdk.min.version>21</jdk.min.version>
         <!-- The lowest supported version of Java for applications using Hibernate Search -->
         <!-- Set statically, independently from the current JDK: we want our code to comply with this version -->
         <java-version.main.release>11</java-version.main.release>