@Override
    protected void doFix(Project project, ProblemDescriptor descriptor)
        throws IncorrectOperationException {
      final PsiType thrownType = myThrown.getType();
      if (thrownType == null) {
        return;
      }
      final PsiElement typeElement = descriptor.getPsiElement();
      if (typeElement == null) {
        return;
      }
      final PsiElement catchParameter = typeElement.getParent();
      if (!(catchParameter instanceof PsiParameter)) {
        return;
      }
      final PsiElement catchBlock = ((PsiParameter) catchParameter).getDeclarationScope();
      if (!(catchBlock instanceof PsiCatchSection)) {
        return;
      }
      final PsiCatchSection myBeforeCatchSection = (PsiCatchSection) catchBlock;
      final PsiTryStatement myTryStatement = myBeforeCatchSection.getTryStatement();
      final JavaCodeStyleManager codeStyleManager = JavaCodeStyleManager.getInstance(project);
      final String name =
          codeStyleManager.suggestUniqueVariableName("e", myTryStatement.getTryBlock(), false);
      final PsiElementFactory factory = JavaPsiFacade.getInstance(project).getElementFactory();
      final PsiCatchSection section = factory.createCatchSection(thrownType, name, myTryStatement);
      final PsiCatchSection element =
          (PsiCatchSection) myTryStatement.addBefore(section, myBeforeCatchSection);
      codeStyleManager.shortenClassReferences(element);

      if (isOnTheFly()) {
        final PsiCodeBlock newBlock = element.getCatchBlock();
        assert newBlock != null;
        final TextRange range = SurroundWithUtil.getRangeToSelect(newBlock);
        final PsiFile file = element.getContainingFile();
        final Editor editor = FileEditorManager.getInstance(project).getSelectedTextEditor();
        if (editor == null) {
          return;
        }
        final Document document = PsiDocumentManager.getInstance(project).getDocument(file);
        if (editor.getDocument() != document) {
          return;
        }
        editor.getCaretModel().moveToOffset(range.getStartOffset());
        editor.getScrollingModel().scrollToCaret(ScrollType.RELATIVE);
        editor.getSelectionModel().setSelection(range.getStartOffset(), range.getEndOffset());
      }
    }
 private void checkCatchSection(PsiCatchSection section) {
   final PsiCodeBlock block = section.getCatchBlock();
   if (block == null || !isCatchBlockEmpty(block)) {
     return;
   }
   final PsiParameter parameter = section.getParameter();
   if (parameter == null) {
     return;
   }
   final PsiIdentifier identifier = parameter.getNameIdentifier();
   if (identifier == null) {
     return;
   }
   @NonNls final String parameterName = parameter.getName();
   if (m_ignoreIgnoreParameter
       && ("ignore".equals(parameterName) || "ignored".equals(parameterName))) {
     return;
   }
   final PsiElement catchToken = section.getFirstChild();
   if (catchToken == null) {
     return;
   }
   registerError(catchToken);
 }