@Override
  public boolean elementContainsFile(final Object element, final VirtualFile vFile) {
    if (element instanceof PsiClass) {
      final PsiFile file = ((PsiClass)element).getContainingFile();
      if (file != null && Comparing.equal(file.getVirtualFile(), vFile)) return true;
    }
    return false;
  }
@Override
  public boolean elementContainsFile(final Object element, final VirtualFile vFile)