`java-library`
}

// tag::customToolchain[]
tasks.withType<JavaCompile>().configureEach {
    javaCompiler = javaToolchains.compilerFor {
        languageVersion = JavaLanguageVersion.of(8)
    }
}

tasks.register<Test>("testsOn17") {
    javaLauncher = javaToolchains.launcherFor {
        languageVersion = JavaLanguageVersion.of(17)
    }
}

    id 'java-library'
}

// tag::customToolchain[]
tasks.withType(JavaCompile).configureEach {
    javaCompiler = javaToolchains.compilerFor {
        languageVersion = JavaLanguageVersion.of(8)
    }
}

task('testsOn17', type: Test) {
    javaLauncher = javaToolchains.launcherFor {
        languageVersion = JavaLanguageVersion.of(17)
    }
}

====
include::sample[dir="kotlin",files="list/build.gradle.kts[tags=customToolchain]"]
include::sample[dir="groovy",files="list/build.gradle[tags=customToolchain]"]
====

[listing.terminal.sample-command]
----
$ ./gradlew check

BUILD SUCCESSFUL
9 actionable tasks: 9 executed
----

        }
        custom {
            architecture 'foo'
        }
    }
    toolChains {
        ${toolChain.id} {
            target('x86')
            target('x86_64')
        }
        customToolchain(${toolChain.implementationClass}) {
            setTargets('custom')
            eachPlatform {
                cCompiler.executable = '${binDir.absolutePath}/french-c-compiler'

====
include::sample[dir="samples/java/jvm-multi-project-with-toolchains/kotlin",files="list/build.gradle.kts[tags=customToolchain]"]
include::sample[dir="samples/java/jvm-multi-project-with-toolchains/groovy/",files="list/build.gradle[tags=customToolchain]"]
====

In addition, in the `application` subproject, we add another Java execution task to run our application with JDK 17.

====