@Override
  protected void processIntention(@NotNull PsiElement element, @NotNull ActionContext context, @NotNull ModPsiUpdater updater) {
    final PsiComment selectedComment = (PsiComment) element;
    PsiComment firstComment = selectedComment;

    while (true) {
      final PsiElement prevComment =
          getPrevNonWhiteSpace(firstComment);
      if (!isEndOfLineComment(prevComment)) {
        break;
      }
      firstComment = (PsiComment) prevComment;
    }
    final JavaPsiFacade manager = JavaPsiFacade.getInstance(selectedComment.getProject());
    final PsiElementFactory factory = manager.getElementFactory();
    String text = getCommentContents(firstComment);
    final List<PsiElement> commentsToDelete = new ArrayList<>();
    PsiElement nextComment = firstComment;
    while (true) {
      nextComment = getNextNonWhiteSpace(nextComment);
      if (!isEndOfLineComment(nextComment)) {
        break;
      }
      text += nextComment.getPrevSibling().getText() + "  " //to get the whitespace for proper spacing
          + getCommentContents((PsiComment) nextComment);
      commentsToDelete.add(nextComment);
    }
    final PsiComment newComment =
        factory.createCommentFromText("/*" + text + " */", selectedComment.getParent());
    firstComment.replace(newComment);
    for (PsiElement commentToDelete : commentsToDelete) {
      commentToDelete.delete();
    }
  }
@Override
  protected void processIntention(@NotNull PsiElement element, @NotNull ActionContext context, @NotNull ModPsiUpdater updater)