public static boolean isEmptyStringLiteral(@Nullable PsiExpression expression) {
    expression = PsiUtil.skipParenthesizedExprDown(expression);
    if (!(expression instanceof PsiLiteralExpression)) {
      return false;
    }
    final String text = expression.getText();
    return "\"\"".equals(text);
  }
public static boolean isEmptyStringLiteral(@Nullable PsiExpression expression)