private String executable;
    private final Property<JavadocTool> javadocTool;

    public Javadoc() {
        ObjectFactory objectFactory = getObjectFactory();
        this.modularity = objectFactory.newInstance(DefaultModularitySpec.class);
        JavaToolchainService javaToolchainService = getJavaToolchainService();
        Provider<JavadocTool> javadocToolConvention = getProviderFactory()

        ":test"        | "JavaLauncher" | "without"
        ":javadoc"     | "JavadocTool"  | "with java plugin"
        ":javadoc"     | "JavadocTool"  | "with per task"
        ":javadoc"     | "JavadocTool"  | "with java plugin and per task"
        ":javadoc"     | "JavadocTool"  | "without"
    }

    def "emits toolchain usages for a custom task that uses a toolchain property"() {

        setupProjectWithToolchain(someJdk.javaVersion)

        when:
        def javadocTask = project.tasks.named("javadoc", Javadoc).get()
        def configuredJavadocTool = javadocTask.javadocTool

        then:
        configuredJavadocTool.isPresent()
    }

    def 'can set java compile source compatibility if toolchain is configured'() {
        given:
        def someJdk = Jvm.current()

* A `JavadocTool` which is the tool used by the link:{groovyDslPath}/org.gradle.api.tasks.javadoc.Javadoc.html#org.gradle.api.tasks.javadoc.Javadoc:javadocTool[Javadoc] task

=== Integration with tasks relying on a Java executable or Java home