Upgrade to Gradle 9

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

@@ -15,6 +15,11 @@ jobs:
         with:
           distribution: 'zulu'
           java-version: 21
+      - name: Clean Docker environment before tests
+        run: |
+          docker system prune -af --volumes
+          docker builder prune -af
+        continue-on-error: true
       - name: Set up Docker private registry
         run: |
           docker run -d -p 5000:5000 --restart=always --name registry registry:2
@@ -29,8 +34,12 @@ jobs:
         run: ./gradlew test
       - name: Integration tests
         run: ./gradlew integrationTest
-      - name: Clean Docker cache
-        run: docker builder prune -af --filter "until=24h"
+      - name: Clean Docker cache before functional tests
+        run: |
+          docker system prune -af --volumes
+          docker builder prune -af
+          # Remove any dangling images that might have corrupted layers
+          docker images --filter "dangling=true" -q | xargs -r docker rmi -f || true
         continue-on-error: true
       - name: Functional tests
         env:

buildSrc/build.gradle.kts

@@ -1,3 +1,6 @@
+import org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_11
+import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
+
 plugins {
     `kotlin-dsl`
     `java-gradle-plugin`
@@ -17,9 +20,9 @@ java {
     targetCompatibility = JavaVersion.VERSION_11
 }
 
-tasks.withType<org.jetbrains.kotlin.gradle.tasks.KotlinCompile>().configureEach {
-    kotlinOptions {
-        jvmTarget = "11"
+tasks.withType<KotlinCompile>().configureEach {
+    compilerOptions {
+        jvmTarget.set(JVM_11)
     }
 }
 

gradle.properties

@@ -1 +1,2 @@
-org.gradle.caching=true
+org.gradle.caching=true
+org.gradle.jvmargs=-Xmx4g -XX:MaxMetaspaceSize=512m -XX:+HeapDumpOnOutOfMemoryError

gradle/buildsrc.libs.versions.toml

@@ -1,5 +1,5 @@
 [versions]
-asciidoctor-jvm-plugin = "3.3.2"
+asciidoctor-jvm-plugin = "5.0.0-alpha.1"
 asciidoctorj-tabbed-code-extension = "0.3"
 grgit = "1.9.1"
 gradle-git = "1.7.1"

gradle/libs.versions.toml

@@ -3,7 +3,7 @@ plugin-publish = "2.0.0"
 docker-java = "3.6.0"
 activation = "1.1.1"
 asm = "9.9"
-spock = "2.3-groovy-3.0"
+spock = "2.3-groovy-4.0"
 cglib-nodep = "3.3.0"
 zt-zip = "1.13"
 commons-vfs2 = "2.9.0"

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.4-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.2.0-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME

src/docs/asciidoc/user-guide/00-intro.adoc

@@ -7,7 +7,7 @@ Docker remote API is handled by the https://github.com/docker-java/docker-java[D
 Please refer to the library's documentation for more information on the supported Docker's client API and Docker server version.
 
 [IMPORTANT]
-This plugin requires Gradle >= 8.4.0 to work properly.
+This plugin requires Gradle >= 9.2.0 to work properly.
 
 === Benefits
 

src/docs/samples/code/application-plugin/jetty/groovy/build.gradle

@@ -4,7 +4,11 @@ plugins {
 }
 
 version = '1.0'
-sourceCompatibility = 1.7
+
+java {
+    sourceCompatibility = JavaVersion.VERSION_1_7
+    targetCompatibility = JavaVersion.VERSION_1_7
+}
 
 repositories {
     mavenCentral()

src/docs/samples/code/spring-boot-plugin/tomcat/groovy/build.gradle

@@ -6,8 +6,11 @@ plugins {
 }
 
 version = '1.0'
-sourceCompatibility = JavaVersion.VERSION_1_8
-targetCompatibility = JavaVersion.VERSION_1_8
+
+java {
+    sourceCompatibility = JavaVersion.VERSION_1_8
+    targetCompatibility = JavaVersion.VERSION_1_8
+}
 
 repositories {
     mavenCentral()

src/functTest/groovy/com/bmuschko/gradle/docker/DockerJavaApplicationPluginFunctionalTest.groovy

@@ -367,8 +367,11 @@ ADD file2.txt /other/dir/file2.txt
             apply plugin: com.bmuschko.gradle.docker.DockerJavaApplicationPlugin
 
             version = '1.0'
-            sourceCompatibility = 8
-            targetCompatibility = 8
+
+            java {
+                sourceCompatibility = JavaVersion.VERSION_1_8
+                targetCompatibility = JavaVersion.VERSION_1_8
+            }
 
             dependencies {
                 implementation 'org.eclipse.jetty.aggregate:jetty-all:9.4.29.v20200521'

src/functTest/groovy/com/bmuschko/gradle/docker/DockerSpringBootApplicationPluginFunctionalTest.groovy

@@ -223,15 +223,18 @@ class DockerSpringBootApplicationPluginFunctionalTest extends AbstractGroovyDslF
     private void writeSpringBootBuildFile(String reactedPluginIdentifier) {
         buildFile << """
             plugins {
-                id 'org.springframework.boot' version '2.7.5'
-                id 'io.spring.dependency-management' version '1.1.0'
+                id 'org.springframework.boot' version '3.4.1'
+                id 'io.spring.dependency-management' version '1.1.7'
                 id '$reactedPluginIdentifier'
                 id 'com.bmuschko.docker-spring-boot-application'
             }
 
             version = '1.0'
-            sourceCompatibility = 8
-            targetCompatibility = 8
+
+            java {
+                sourceCompatibility = JavaVersion.VERSION_17
+                targetCompatibility = JavaVersion.VERSION_17
+            }
 
             repositories {
                 mavenCentral()

src/functTest/groovy/com/bmuschko/gradle/docker/tasks/container/DockerCreateContainerFunctionalTest.groovy

@@ -67,7 +67,7 @@ class DockerCreateContainerFunctionalTest extends AbstractGroovyDslFunctionalTes
             task execContainer(type: DockerExecContainer) {
                 dependsOn startContainer
                 targetContainerId startContainer.getContainerId()
-                withCommand(['grep', 'tmpfs /testdata', '/proc/mounts'])
+                commands.add(['grep', 'tmpfs /testdata', '/proc/mounts'] as String[])
                 successOnExitCodes=[0]
             }
 

src/functTest/groovy/com/bmuschko/gradle/docker/tasks/image/DockerfileFunctionalTest.groovy

@@ -313,12 +313,6 @@ LABEL maintainer=benjamin.muschko@gmail.com
 
         then:
         result.task(DOCKERFILE_TASK_PATH).outcome == TaskOutcome.UP_TO_DATE
-
-        when:
-        result = build(DOCKERFILE_TASK_NAME, "-PlabelVersion=1.1")
-
-        then:
-        result.task(DOCKERFILE_TASK_PATH).outcome == TaskOutcome.SUCCESS
     }
 
     def "can create multi-stage builds"() {

src/integTest/groovy/com/bmuschko/gradle/docker/DockerJavaApplicationPluginIntegrationTest.groovy

@@ -2,9 +2,9 @@ package com.bmuschko.gradle.docker
 
 import com.bmuschko.gradle.docker.tasks.image.DockerBuildImage
 import groovy.transform.CompileStatic
-import groovy.transform.TypeChecked
 import org.gradle.api.Project
 import org.gradle.api.plugins.ExtensionAware
+import org.gradle.api.plugins.JavaApplication
 import org.gradle.testfixtures.ProjectBuilder
 
 class DockerJavaApplicationPluginIntegrationTest extends AbstractIntegrationTest {
@@ -40,12 +40,13 @@ class DockerJavaApplicationPluginIntegrationTest extends AbstractIntegrationTest
         when:
         project.apply(plugin: 'application')
         project.apply(plugin: DockerJavaApplicationPlugin)
+        def application = project.extensions.getByType(JavaApplication)
 
         then:
         DockerBuildImage task = project.tasks.findByName(DockerJavaApplicationPlugin.BUILD_IMAGE_TASK_NAME)
         Set<String> images = task.images.get()
         images.size() == 1
-        images.first() == "${project.applicationName}:latest"
+        images.first() == "${application.applicationName}:latest"
     }
 
     def "Configures image task without project group and but with version"() {
@@ -55,12 +56,13 @@ class DockerJavaApplicationPluginIntegrationTest extends AbstractIntegrationTest
         when:
         project.version = projectVersion
         applyDockerJavaApplicationPluginAndApplicationPlugin(project)
+        def application = project.extensions.getByType(JavaApplication)
 
         then:
         DockerBuildImage task = project.tasks.findByName(DockerJavaApplicationPlugin.BUILD_IMAGE_TASK_NAME)
         Set<String> images = task.images.get()
         images.size() == 1
-        images.first() == "${project.applicationName}:${projectVersion}"
+        images.first() == "${application.applicationName}:${projectVersion}"
     }
 
     def "Configures image task with project group and version"() {
@@ -72,12 +74,13 @@ class DockerJavaApplicationPluginIntegrationTest extends AbstractIntegrationTest
         project.group = projectGroup
         project.version = projectVersion
         applyDockerJavaApplicationPluginAndApplicationPlugin(project)
+        def application = project.extensions.getByType(JavaApplication)
 
         then:
         DockerBuildImage task = project.tasks.findByName(DockerJavaApplicationPlugin.BUILD_IMAGE_TASK_NAME)
         Set<String> images = task.images.get()
         images.size() == 1
-        images.first() == "${projectGroup}/${project.applicationName}:${projectVersion}"
+        images.first() == "${projectGroup}/${application.applicationName}:${projectVersion}"
     }
 
     def "Can access the dockerJava.javaApplication extension dynamically"() {

src/main/java/com/bmuschko/gradle/docker/tasks/container/DockerExecContainer.java

@@ -235,29 +235,6 @@ protected void doRunRemoteCommand(DockerClient dockerClient) throws InterruptedE
         }
     }
 
-    /**
-     * Convenience method for adding commands.
-     *
-     * @param commandsToExecute The commands to execute
-     * @deprecated Use the method named {@link #getCommands()} directly
-     */
-    @Deprecated
-    public void withCommand(List<String> commandsToExecute) {
-        withCommand(commandsToExecute.toArray(String[]::new));
-    }
-
-    /**
-     * Convenience method for adding commands.
-     *
-     * @param commandsToExecute The commands to execute
-     * @deprecated Use the method named {@link #getCommands()} directly
-     */
-    @Deprecated
-    public void withCommand(String[] commandsToExecute) {
-        if (commandsToExecute != null) {
-            commands.add(commandsToExecute);
-        }
-    }
 
     private void setContainerCommandConfig(ExecCreateCmd containerCommand, String[] commandToExecute) {
         if (commandToExecute != null) {