idsOfBuildTrees.size()
    }

    List<ScopeIds> getIds() {
        idsOfBuildTrees.collect { it.get(":") }
    }

    Map<String, ScopeIds> idsOfBuildTree(int buildNum) {
        idsOfBuildTrees.get(buildNum)
    }

    ScopeIds ids(int buildNum) {
        assert idsOfBuildTrees.size() > buildNum
        getIds()[buildNum]
    }

    UniqueId getBuildInvocationId() {

        if (profileActivation != null) {
            Activation activation = new Activation();

            activation.setActiveByDefault(profileActivation.isActiveByDefault());

            activation.setJdk(profileActivation.getJdk());

            org.apache.maven.profiles.ActivationProperty profileProp = profileActivation.getProperty();

            if (profileProp != null) {
                ActivationProperty prop = new ActivationProperty();

        return sourceLanguageLevel;
    }

    public JavaVersion getTargetBytecodeVersion() {
        return targetBytecodeVersion;
    }

    public DefaultInstalledJdk getJdk() {
        return jdk;
    }

import org.junit.Assume

import static org.gradle.integtests.fixtures.AvailableJavaHomes.getJdk17
import static org.gradle.integtests.fixtures.AvailableJavaHomes.getJdk21
import static org.gradle.integtests.fixtures.AvailableJavaHomes.getJdk8
import static org.gradle.integtests.tooling.r86.ProblemsServiceModelBuilderCrossVersionTest.getBuildScriptSampleContent

@TargetGradleVersion(">=8.8")
@ToolingApiVersion("=8.8")

        "assigned tool"  | "over java extension"        | "other"  | "current"         | "other"
    }

    def "can compile source and run tests using Java #javaVersion for Scala "() {
        def jdk = AvailableJavaHomes.getJdk(javaVersion)
        Assume.assumeTrue(jdk != null)

        configureJavaPluginToolchainVersion(jdk)

        buildFile << """
            tasks.withType(ScalaCompile).configureEach {

        then:
        skipped(":compileGroovy")
    }

    def 'source and target compatibility override toolchain (source #source, target #target) for Groovy '() {
        def jdk11 = AvailableJavaHomes.getJdk(JavaVersion.VERSION_11)

        buildFile << """
            java {
                toolchain {
                    languageVersion = JavaLanguageVersion.of(11)
                }
            }

class GroovyCompileOldJavaTargetIntegrationTest extends AbstractIntegrationSpec implements JavaToolchainFixture {

    def "can compile source to Java target #javaVersion"() {
        def jdk11 = AvailableJavaHomes.getJdk(JavaVersion.VERSION_11)

        buildFile << """
            apply plugin: "groovy"
            ${mavenCentralRepository()}

            ${javaPluginToolchainVersion(jdk11)}

            java {

    @Flaky
    def "tapi client can launch task with Gradle and Java combination"(JavaVersion gradleDaemonJdkVersion, String gradleVersion) {
        setup:
        def gradleDaemonJdk = AvailableJavaHomes.getJdk(gradleDaemonJdkVersion)
        Assume.assumeTrue(gradleDaemonJdk != null)
        sortOutNotSupportedNotWorkingCombinations(gradleVersion)

        when:
        succeeds("runTask",

class CrossCompilationIntegrationTest extends AbstractIntegrationSpec {
    def "can configure the Java plugin to compile and run tests against Java #version JDK"() {
        def jvm = AvailableJavaHomes.getJdk(version)
        Assume.assumeTrue(jvm != null)

        settingsFile << "rootProject.name = 'oldjava'"
        buildFile << """
            plugins {
                id "java"
            }

    JavaVersion getJavaVersion() {
        JavaVersion.toVersion(version)
    }

    JavaInfo getTarget() {
        return AvailableJavaHomes.getJdk(javaVersion)
    }

    def setup() {
        Assume.assumeTrue(target != null)
        def java = TextUtil.escapeString(target.getJavaExecutable())