@Override
  public PsiJavaCodeReferenceElement getImportReference() {
    PsiUtilCore.ensureValid(this);
    PsiImportStatementStub stub = getStub();
    if (stub != null) {
      return stub.getReference();
    }
    return (PsiJavaCodeReferenceElement)calcTreeElement().findChildByRoleAsPsiElement(ChildRole.IMPORT_REFERENCE);
  }
@Override
  public PsiJavaCodeReferenceElement getImportReference()