public static <T> void registerExtensionPoint(
    ExtensionPointName<T> name, Class<T> clazz, Disposable parentDisposable) {
  ExtensionsArea area = Extensions.getRootArea();
  String epName = name.getName();
  area.registerExtensionPoint(epName, clazz.getName());
  Disposer.register(parentDisposable, () -> area.unregisterExtensionPoint(epName));
}
 

public static void doRegisterExtensionPoint(String extensionPointName, Object extension, Project project) {
  // Dynamic registering exp point for IDEA 7
  ExtensionsArea area = project != null ? Extensions.getArea(project): Extensions.getRootArea();
  if (area != null && area.hasExtensionPoint(extensionPointName)) {
    area.getExtensionPoint(extensionPointName).registerExtension(extension, LoadingOrder.ANY);
  }
}
 

public JavaAnalyzer() {
    Disposable d = () -> {
    };

    CoreApplicationEnvironment.registerExtensionPoint(Extensions.getRootArea(), ClsCustomNavigationPolicy.EP_NAME, ClsCustomNavigationPolicy.class);



    ExtensionsArea area = Extensions.getRootArea();
    CoreApplicationEnvironment.registerExtensionPoint(area, BinaryFileStubBuilders.EP_NAME, FileTypeExtensionPoint.class);
    CoreApplicationEnvironment.registerExtensionPoint(area, FileContextProvider.EP_NAME, FileContextProvider.class);
    CoreApplicationEnvironment.registerExtensionPoint(area, MetaDataContributor.EP_NAME, MetaDataContributor.class);
    CoreApplicationEnvironment.registerExtensionPoint(area, PsiAugmentProvider.EP_NAME, PsiAugmentProvider.class);
    CoreApplicationEnvironment.registerExtensionPoint(area, JavaMainMethodProvider.EP_NAME, JavaMainMethodProvider.class);
    CoreApplicationEnvironment.registerExtensionPoint(area, ContainerProvider.EP_NAME, ContainerProvider.class);
    CoreApplicationEnvironment.registerExtensionPoint(area, ClassFileDecompilers.EP_NAME, ClassFileDecompilers.Decompiler.class);
    CoreApplicationEnvironment.registerExtensionPoint(area, TypeAnnotationModifier.EP_NAME, TypeAnnotationModifier.class);
    CoreApplicationEnvironment.registerExtensionPoint(area, MetaLanguage.EP_NAME, MetaLanguage.class);
    CoreApplicationEnvironment.registerExtensionPoint(area, JavaModuleSystem.EP_NAME, JavaModuleSystem.class);

    CoreApplicationEnvironment.registerApplicationExtensionPoint(ContainerProvider.EP_NAME, JavaContainerProvider.class);

    appEnvironment = new JavaCoreApplicationEnvironment(d);
    appEnvironment.registerApplicationService(JavaClassSupers.class, new JavaClassSupersImpl());

    javaEnvironment = new JavaCoreProjectEnvironment(d, appEnvironment) {
        @Override
        protected void preregisterServices() {
            ExtensionsArea a = Extensions.getArea(myProject);
            CoreApplicationEnvironment.registerExtensionPoint(a, PsiTreeChangePreprocessor.EP_NAME, PsiTreeChangePreprocessor.class);
            CoreApplicationEnvironment.registerExtensionPoint(a, PsiElementFinder.EP_NAME, PsiElementFinder.class);
            CoreApplicationEnvironment.registerExtensionPoint(a, JvmElementProvider.EP_NAME, JvmElementProvider.class);
        }
        @Override
        protected void registerJavaPsiFacade() {
            JavaFileManager javaFileManager = getProject().getComponent(JavaFileManager.class);
            CoreJavaFileManager coreJavaFileManager = (CoreJavaFileManager) javaFileManager;
            ServiceManager.getService(getProject(), CoreJavaFileManager.class);
            getProject().registerService(CoreJavaFileManager.class, coreJavaFileManager);
            getProject().registerService(PsiNameHelper.class, PsiNameHelperImpl.getInstance());
            PsiElementFinder finder = new PsiElementFinderImpl(getProject(), coreJavaFileManager);
            ExtensionsArea area = Extensions.getArea(getProject());
            area.getExtensionPoint(PsiElementFinder.EP_NAME).registerExtension(finder);
            super.registerJavaPsiFacade();
        }
    };
    System.setProperty("idea.use.native.fs.for.win", "false");
}
 

@NotNull
@Override
public ExtensionsArea getExtensionArea() {
	return null;
}