}

        private static IdeaLanguageLevel resolveLanguageLevel(IsolatedIdeaModuleInternal isolatedIdeaModule) {
            JavaVersion languageLevelConvention = isolatedIdeaModule.getJavaSourceCompatibility();
            IdeaLanguageLevel explicitLanguageLevel = isolatedIdeaModule.getExplicitSourceLanguageLevel();
            return getPropertyValue(explicitLanguageLevel, new IdeaLanguageLevel(languageLevelConvention));
        }

            }

        });
        convention.map("languageLevel", new Callable<IdeaLanguageLevel>() {
            @Override
            public IdeaLanguageLevel call() {
                IdeaLanguageLevel moduleLanguageLevel = new IdeaLanguageLevel(project.getExtensions().getByType(JavaPluginExtension.class).getSourceCompatibility());

    private final ProjectStateRegistry projectPathRegistry;
    private final IdeArtifactRegistry artifactRegistry;

    private List<IdeaModule> modules;
    private String jdkName;
    protected IdeaLanguageLevel languageLevel;
    protected JavaVersion targetBytecodeVersion;
    private String vcs;
    private Set<String> wildcards = new LinkedHashSet<>();
    private RegularFileProperty outputFile;

        """

        file("lib1/build.gradle") << """
            import org.gradle.plugins.ide.idea.model.IdeaLanguageLevel
            plugins {
                id 'java'
                id 'idea'
            }
            idea.module.languageLevel = new IdeaLanguageLevel(7)
            idea.module.targetBytecodeVersion = JavaVersion.VERSION_1_7
            java.targetCompatibility = JavaVersion.VERSION_1_8

        modelBuilder.buildAll("org.gradle.tooling.model.idea.IdeaProject", project)
    }

    private JavaVersion toJavaVersion(ideaLanguageLevel) {
        JavaVersion.valueOf(ideaLanguageLevel.level.replaceFirst("JDK", "VERSION"));
    }

    private JavaVersion getDefaultIdeaPluginLanguageLevelForNonJavaProjects() {

     * <p>
     * The Idea module language level is based on the {@code sourceCompatibility} settings for the associated Gradle project.
     */
    public IdeaLanguageLevel getLanguageLevel() {
        return languageLevel;
    }

    public void setLanguageLevel(IdeaLanguageLevel languageLevel) {
        this.languageLevel = languageLevel;
    }

    /**
     * The module specific bytecode version to use for this module.

    @Override
    protected String getDefaultResourceName() {
        return "defaultProject.xml";
    }

    public void configure(List<IdeaModule> modules,
                          String jdkName, IdeaLanguageLevel languageLevel, JavaVersion bytecodeVersion,
                          Collection<String> wildcards, Collection<ProjectLibrary> projectLibraries, String vcs) {
        if (!isNullOrEmpty(jdkName)) {