private @Nullable PsiElement parseParams(@NotNull PsiJavaToken child) {
      if (child.getTokenType() != JavaTokenType.LPARENTH) return null;
      PsiJavaToken closingBracket = findClosingBracket(child, JavaTokenType.LPARENTH, JavaTokenType.RPARENTH);
      if (closingBracket == null) return null;
      return nextChild();
    }
private @Nullable PsiElement parseParams(@NotNull PsiJavaToken child)