@Override
  public boolean isEmpty() {
    PsiParameterListStub stub = getGreenStub();
    if (stub != null) {
      for (StubElement<?> child : stub.getChildrenStubs()) {
        if (child.getStubType() == JavaStubElementTypes.PARAMETER) {
          return false;
        }
      }
      return true;
    }

    return getNode().findChildByType(Constants.PARAMETER_BIT_SET) == null;
  }
@Override
  public boolean isEmpty()