Bump minimal requirements to Java 17

This commit upgrades the plugin to build with Java 17, but also
require everything to use Java 17 minimally: this is preparation
work for supporting Micronaut 4 which will raise the minimal JDK
version to 17.

This doesn't upgrade transitive plugins like the Docker plugin
yet.

.github/workflows/graalvm.yml

@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        java: ['11']
+        java: ['17']
         graalvm: ['latest', 'dev']
     steps:
        # https://github.com/actions/virtual-environments/issues/709

.github/workflows/gradle.yml

@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        java: ['8', '11', '17']
+        java: ['17']
     steps:
        # https://github.com/actions/virtual-environments/issues/709
       - name: Free disk space

.github/workflows/publish-snapshot.yml

@@ -21,7 +21,7 @@ jobs:
         uses: actions/setup-java@v3
         with:
           distribution: 'adopt'
-          java-version: '8'
+          java-version: '17'
       - name: Publish to Sonatype Snapshots
         if: success()
         env:

.github/workflows/release.yml

@@ -20,7 +20,7 @@ jobs:
         uses: actions/setup-java@v3
         with:
           distribution: 'adopt'
-          java-version: '8'
+          java-version: '17'
       - name: Set the current release version
         id: release_version
         run: echo ::set-output name=release_version::${GITHUB_REF:11}

.github/workflows/sonarqube.yml

@@ -38,7 +38,7 @@ jobs:
         uses: graalvm/setup-graalvm@v1
         with:
           version: '22.2.0'
-          java-version: '11'
+          java-version: '17'
           components: 'native-image'
       - name: Optional setup step
         env:

.github/workflows/windows-ci.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: windows-latest
     strategy:
       matrix:
-        java: ['11']
+        java: ['17']
     steps:
       - uses: actions/checkout@v3
       - uses: actions/[email protected]

docker-plugin/src/main/java/io/micronaut/gradle/docker/MicronautDockerfile.java

@@ -175,16 +175,16 @@ public DockerBuildOptions exportPorts(Integer... ports) {
 
     private String getProjectFnVersion() {
         JavaVersion javaVersion = Jvm.current().getJavaVersion();
-        if (javaVersion != null && javaVersion.isJava11Compatible()) {
-            return "jre11-latest";
+        if (javaVersion != null && javaVersion.isCompatibleWith(JavaVersion.VERSION_17)) {
+            return "jre17-latest";
         }
         return "latest";
     }
 
     static void setupResources(Dockerfile task) {
         String workDir = DEFAULT_WORKING_DIR;
-        if (task instanceof DockerBuildOptions) {
-            workDir = ((DockerBuildOptions) task).getTargetWorkingDirectory().get();
+        if (task instanceof DockerBuildOptions dbo) {
+            workDir = dbo.getTargetWorkingDirectory().get();
         }
         task.workingDir(workDir);
         task.copyFile("layers/libs", workDir + "/libs");

docker-plugin/src/main/java/io/micronaut/gradle/docker/NativeImageDockerfile.java

@@ -54,7 +54,7 @@ public abstract class NativeImageDockerfile extends Dockerfile implements Docker
 
     private static final List<Integer> SUPPORTED_JAVA_VERSIONS = Collections.unmodifiableList(
             // keep those in descending order
-            Arrays.asList(17, 11)
+            Arrays.asList(17)
     );
     private static final String ARM_ARCH = "aarch64";
     private static final String X86_64_ARCH = "amd64";
@@ -361,7 +361,7 @@ private static int toSupportedJavaVersion(int version) {
                 return javaVersion;
             }
         }
-        return SUPPORTED_JAVA_VERSIONS.stream().reduce((x, y) -> y).orElse(11);
+        return SUPPORTED_JAVA_VERSIONS.stream().reduce((x, y) -> y).orElse(17);
     }
 
     @TaskAction
@@ -408,7 +408,7 @@ private void setupInstructions(List<Instruction> additionalInstructions) {
                         .getFiles()
                         .stream()
                         .map(this::toCopyResourceDirectoryInstruction)
-                        .collect(Collectors.toList())
+                        .toList()
         ));
         runCommand(getProviders().provider(() -> String.join(" ", buildActualCommandLine(executable, buildStrategy, imageResolver))));
         switch (buildStrategy) {
@@ -530,7 +530,7 @@ private List<String> buildNativeImageCommandLineArgs(Provider<String> executable
                         }
                         return arg;
                     })
-                    .collect(Collectors.toList());
+                    .toList();
         }
         return args;
     }
@@ -553,7 +553,7 @@ private void prepareNativeImageOptions(NativeImageOptions options) {
                 .getFiles()
                 .stream()
                 .map(f -> getTargetWorkingDirectory().get() + "/config-dirs/" + f.getName())
-                .collect(Collectors.toList())
+                .toList()
         );
         options.getConfigurationFileDirectories().setFrom(
                 remappedConfigDirectories
@@ -609,8 +609,8 @@ public DockerBuildOptions exportPorts(Integer... ports) {
 
     private String getProjectFnVersion() {
         JavaVersion javaVersion = Jvm.current().getJavaVersion();
-        if (javaVersion != null && javaVersion.isJava11Compatible()) {
-            return "jre11-latest";
+        if (javaVersion != null && javaVersion.isCompatibleWith(JavaVersion.VERSION_17)) {
+            return "jre17-latest";
         }
         return "latest";
     }

docker-plugin/src/main/java/io/micronaut/gradle/docker/model/MicronautDockerImage.java

@@ -20,7 +20,6 @@
 import org.gradle.api.provider.ListProperty;
 
 import java.util.List;
-import java.util.stream.Collectors;
 
 /**
  * Represents a Micronaut docker image, represented
@@ -36,7 +35,7 @@ public interface MicronautDockerImage extends Named {
     default List<Layer> findLayers(RuntimeKind runtimeKind) {
         return getLayers().map(layers -> layers.stream()
                 .filter(layer -> layer.getRuntimeKind().get().isCompatibleWith(runtimeKind))
-                .collect(Collectors.toList()))
+                .toList())
                 .get();
     }
 }

docker-plugin/src/test/groovy/io/micronaut/gradle/DockerBuildTaskSpec.groovy

@@ -3,10 +3,8 @@ package io.micronaut.gradle
 import org.gradle.testkit.runner.TaskOutcome
 import spock.lang.IgnoreIf
 import spock.lang.Issue
-import spock.lang.Requires
 
 @IgnoreIf({ os.windows })
-@Requires({ jvm.isJava11Compatible() })
 class DockerBuildTaskSpec extends AbstractGradleBuildSpec {
 
     def "test build docker image"() {

functional-tests/src/test/groovy/io/micronaut/gradle/aot/BasicMicronautAOTSpec.groovy

@@ -2,9 +2,7 @@ package io.micronaut.gradle.aot
 
 import org.gradle.testkit.runner.TaskOutcome
 import spock.lang.Issue
-import spock.lang.Requires
 
-@Requires({ jvm.isJava11Compatible() })
 class BasicMicronautAOTSpec extends AbstractAOTPluginSpec {
 
     def "generates optimizations for #runtime (#kind)"() {

functional-tests/src/test/groovy/io/micronaut/gradle/aot/FunctionsMicronautAOTSpec.groovy

@@ -4,7 +4,6 @@ import io.micronaut.gradle.AbstractGradleBuildSpec
 import org.gradle.testkit.runner.TaskOutcome
 import spock.lang.Requires
 
-@Requires({ jvm.isJava11Compatible() })
 class FunctionsMicronautAOTSpec extends AbstractAOTPluginSpec {
     private static final List<String> PROVIDERS = ["aws"]
     private static final List<String> RUNTIMES = ["jit", "native"]

functional-tests/src/test/groovy/io/micronaut/gradle/aot/MicronautAOTDockerSpec.groovy

@@ -2,10 +2,8 @@ package io.micronaut.gradle.aot
 
 import org.gradle.testkit.runner.TaskOutcome
 import spock.lang.IgnoreIf
-import spock.lang.Requires
 
 @IgnoreIf({ os.windows })
-@Requires({ jvm.isJava11() })
 class MicronautAOTDockerSpec extends AbstractAOTPluginSpec {
 
     def "generates an optimized docker file"() {
@@ -74,7 +72,7 @@ ENTRYPOINT ["java", "-jar", "/home/app/application.jar"]
         result.task(":optimizedDockerBuildNative").outcome == TaskOutcome.SUCCESS
 
         def dockerFile = normalizeLineEndings(file("build/docker/native-optimized/DockerfileNative").text)
-        dockerFile == """FROM ghcr.io/graalvm/native-image:ol7-java11-22.2.0 AS graalvm
+        dockerFile == """FROM ghcr.io/graalvm/native-image:ol7-java17-22.2.0 AS graalvm
 WORKDIR /home/app
 COPY layers/libs /home/app/libs
 COPY layers/classes /home/app/classes

functional-tests/src/test/groovy/io/micronaut/gradle/aot/ShadowMicronautAOTSpec.groovy

@@ -1,8 +1,5 @@
 package io.micronaut.gradle.aot
 
-import spock.lang.Requires
-
-@Requires({ jvm.isJava11Compatible() })
 class ShadowMicronautAOTSpec extends AbstractAOTPluginSpec {
 
     def "builds a fatjar optimized flavor"() {

functional-tests/src/test/groovy/io/micronaut/gradle/docker/DockerNativeFunctionalTest.groovy

@@ -9,7 +9,6 @@ import spock.lang.Requires
 
 @Requires({ AbstractGradleBuildSpec.graalVmAvailable })
 @IgnoreIf({ os.windows })
-@Requires({ jvm.isJava11Compatible() })
 class DockerNativeFunctionalTest extends AbstractEagerConfiguringFunctionalTest {
 
     def "test build docker native image for runtime #runtime"() {
@@ -33,8 +32,8 @@ class DockerNativeFunctionalTest extends AbstractEagerConfiguringFunctionalTest
             mainClassName="example.Application"
             
             java {
-                sourceCompatibility = JavaVersion.toVersion('11')
-                targetCompatibility = JavaVersion.toVersion('11')
+                sourceCompatibility = JavaVersion.toVersion('17')
+                targetCompatibility = JavaVersion.toVersion('17')
             }
             
             dockerfileNative {
@@ -122,8 +121,8 @@ micronaut:
             }
 
             java {
-                sourceCompatibility = JavaVersion.toVersion('11')
-                targetCompatibility = JavaVersion.toVersion('11')
+                sourceCompatibility = JavaVersion.toVersion('17')
+                targetCompatibility = JavaVersion.toVersion('17')
             }
 
             dockerfileNative {
@@ -170,8 +169,8 @@ micronaut:
             }
 
             java {
-                sourceCompatibility = JavaVersion.toVersion('11')
-                targetCompatibility = JavaVersion.toVersion('11')
+                sourceCompatibility = JavaVersion.toVersion('17')
+                targetCompatibility = JavaVersion.toVersion('17')
             }
         """
 
@@ -211,8 +210,8 @@ micronaut:
             }
 
             java {
-                sourceCompatibility = JavaVersion.toVersion('11')
-                targetCompatibility = JavaVersion.toVersion('11')
+                sourceCompatibility = JavaVersion.toVersion('17')
+                targetCompatibility = JavaVersion.toVersion('17')
             }
         """
 
@@ -256,8 +255,8 @@ micronaut:
             }
             
             java {
-                sourceCompatibility = JavaVersion.toVersion('11')
-                targetCompatibility = JavaVersion.toVersion('11')
+                sourceCompatibility = JavaVersion.toVersion('17')
+                targetCompatibility = JavaVersion.toVersion('17')
             }
             
             mainClassName="example.Application"
@@ -429,8 +428,8 @@ class Application {
             }
                     
             java {
-                sourceCompatibility = JavaVersion.toVersion('11')
-                targetCompatibility = JavaVersion.toVersion('11')
+                sourceCompatibility = JavaVersion.toVersion('17')
+                targetCompatibility = JavaVersion.toVersion('17')
             }
             
             dockerfile {
@@ -510,8 +509,8 @@ class Application {
             mainClassName="example.Application"
             
             java {
-                sourceCompatibility = JavaVersion.toVersion('11')
-                targetCompatibility = JavaVersion.toVersion('11')
+                sourceCompatibility = JavaVersion.toVersion('17')
+                targetCompatibility = JavaVersion.toVersion('17')
             }
             
             dockerfileNative {
@@ -565,7 +564,7 @@ micronaut:
         expect:
         task.outcome == TaskOutcome.SUCCESS
         dockerFile == """
-FROM ghcr.io/graalvm/native-image:ol7-java11-22.2.0 AS graalvm
+FROM ghcr.io/graalvm/native-image:ol7-java17-22.2.0 AS graalvm
 WORKDIR /home/alternate
 COPY layers/libs /home/alternate/libs
 COPY layers/classes /home/alternate/classes

functional-tests/src/test/groovy/io/micronaut/gradle/graalvm/MicronautGraalPluginSpec.groovy

@@ -7,7 +7,6 @@ import org.gradle.testkit.runner.TaskOutcome
 import spock.lang.Requires
 
 @Requires({ AbstractGradleBuildSpec.graalVmAvailable && !os.windows })
-@Requires({ jvm.isJava11Compatible() })
 class MicronautGraalPluginSpec extends AbstractEagerConfiguringFunctionalTest {
 
     void 'generate GraalVM resource-config.json with OpenAPI and resources included'() {

functional-tests/src/test/groovy/io/micronaut/gradle/lambda/LambdaNativeImageSpec.groovy

@@ -6,11 +6,9 @@ import org.gradle.testkit.runner.TaskOutcome
 import spock.lang.IgnoreIf
 import spock.lang.Issue
 import spock.lang.Requires
-import spock.util.environment.RestoreSystemProperties
 
 @Requires({ AbstractGradleBuildSpec.graalVmAvailable })
 @IgnoreIf({ os.windows })
-@Requires({ jvm.isJava11Compatible() })
 class LambdaNativeImageSpec extends AbstractFunctionalTest {
 
     void 'mainclass is set correctly for an application deployed as GraalVM and Lambda'() {
@@ -35,8 +33,8 @@ class LambdaNativeImageSpec extends AbstractFunctionalTest {
             }
             
             java {
-                sourceCompatibility = JavaVersion.toVersion('11')
-                targetCompatibility = JavaVersion.toVersion('11')
+                sourceCompatibility = JavaVersion.toVersion('17')
+                targetCompatibility = JavaVersion.toVersion('17')
             }
         """
 
@@ -77,8 +75,8 @@ class LambdaNativeImageSpec extends AbstractFunctionalTest {
             }
 
             java {
-                sourceCompatibility = JavaVersion.toVersion('11')
-                targetCompatibility = JavaVersion.toVersion('11')
+                sourceCompatibility = JavaVersion.toVersion('17')
+                targetCompatibility = JavaVersion.toVersion('17')
             }
 
             dockerfileNative {
@@ -126,8 +124,8 @@ class LambdaNativeImageSpec extends AbstractFunctionalTest {
             }
             
             java {
-                sourceCompatibility = JavaVersion.toVersion('11')
-                targetCompatibility = JavaVersion.toVersion('11')
+                sourceCompatibility = JavaVersion.toVersion('17')
+                targetCompatibility = JavaVersion.toVersion('17')
             }
             
             graalvmNative {
@@ -185,8 +183,8 @@ class LambdaNativeImageSpec extends AbstractFunctionalTest {
             }
 
             java {
-                sourceCompatibility = JavaVersion.toVersion('11')
-                targetCompatibility = JavaVersion.toVersion('11')
+                sourceCompatibility = JavaVersion.toVersion('17')
+                targetCompatibility = JavaVersion.toVersion('17')
             }
         """
 
@@ -234,8 +232,8 @@ class LambdaNativeImageSpec extends AbstractFunctionalTest {
             }
 
             java {
-                sourceCompatibility = JavaVersion.toVersion('11')
-                targetCompatibility = JavaVersion.toVersion('11')
+                sourceCompatibility = JavaVersion.toVersion('17')
+                targetCompatibility = JavaVersion.toVersion('17')
             }
 
             dockerfileNative {
@@ -286,8 +284,8 @@ class LambdaNativeImageSpec extends AbstractFunctionalTest {
             }
 
             java {
-                sourceCompatibility = JavaVersion.toVersion('11')
-                targetCompatibility = JavaVersion.toVersion('11')
+                sourceCompatibility = JavaVersion.toVersion('17')
+                targetCompatibility = JavaVersion.toVersion('17')
             }
         """
 

functional-tests/src/test/groovy/io/micronaut/gradle/testresources/TestResourcesWithAotAndGraalVMSpec.groovy

@@ -5,7 +5,6 @@ import org.gradle.testkit.runner.TaskOutcome
 import spock.lang.Requires
 
 @Requires({ AbstractGradleBuildSpec.graalVmAvailable && !os.windows })
-@Requires({ jvm.isJava11Compatible() })
 class TestResourcesWithAotAndGraalVMSpec extends AbstractTestResourcesSpec {
 
     def "runs optimized binary"() {