@Override
  public boolean isInLibraryClasses(@NotNull VirtualFile file) {
    for (VirtualFile libraryRoot : myLibraryRoots) {
      if (VfsUtilCore.isAncestor(libraryRoot, file, false)) {
        return true;
      }
    }
    return false;
  }
@Override
  public boolean isInLibraryClasses(@NotNull VirtualFile file)