private static boolean contains(
     CommonProblemDescriptor descriptor, Collection<CommonProblemDescriptor> descriptors) {
   PsiElement element = null;
   if (descriptor instanceof ProblemDescriptor) {
     element = ((ProblemDescriptor) descriptor).getPsiElement();
   }
   for (CommonProblemDescriptor problemDescriptor : descriptors) {
     if (problemDescriptor instanceof ProblemDescriptor) {
       if (!Comparing.equal(element, ((ProblemDescriptor) problemDescriptor).getPsiElement())) {
         continue;
       }
     }
     if (Comparing.strEqual(
         problemDescriptor.getDescriptionTemplate(), descriptor.getDescriptionTemplate())) {
       return true;
     }
   }
   return false;
 }
  @Override
  @Nullable
  public IntentionAction findQuickFixes(
      @NotNull final CommonProblemDescriptor problemDescriptor, final String hint) {
    InspectionProfileEntry tool = getToolWrapper().getTool();
    if (!(tool instanceof GlobalInspectionTool)) return null;
    final QuickFix fix = ((GlobalInspectionTool) tool).getQuickFix(hint);
    if (fix == null) {
      return null;
    }
    if (problemDescriptor instanceof ProblemDescriptor) {
      final ProblemDescriptor descriptor =
          new ProblemDescriptorImpl(
              ((ProblemDescriptor) problemDescriptor).getStartElement(),
              ((ProblemDescriptor) problemDescriptor).getEndElement(),
              problemDescriptor.getDescriptionTemplate(),
              new LocalQuickFix[] {(LocalQuickFix) fix},
              ProblemHighlightType.GENERIC_ERROR_OR_WARNING,
              false,
              null,
              false);
      return QuickFixWrapper.wrap(descriptor, 0);
    }
    return new IntentionAction() {
      @Override
      @NotNull
      public String getText() {
        return fix.getName();
      }

      @Override
      @NotNull
      public String getFamilyName() {
        return fix.getFamilyName();
      }

      @Override
      public boolean isAvailable(@NotNull Project project, Editor editor, PsiFile file) {
        return true;
      }

      @Override
      public void invoke(@NotNull Project project, Editor editor, PsiFile file)
          throws IncorrectOperationException {
        fix.applyFix(project, problemDescriptor); // todo check type consistency
      }

      @Override
      public boolean startInWriteAction() {
        return true;
      }
    };
  }
  private void exportResults(
      @NotNull final CommonProblemDescriptor[] descriptors,
      @NotNull RefEntity refEntity,
      @NotNull Element parentNode) {
    for (CommonProblemDescriptor descriptor : descriptors) {
      @NonNls final String template = descriptor.getDescriptionTemplate();
      int line =
          descriptor instanceof ProblemDescriptor
              ? ((ProblemDescriptor) descriptor).getLineNumber()
              : -1;
      final PsiElement psiElement =
          descriptor instanceof ProblemDescriptor
              ? ((ProblemDescriptor) descriptor).getPsiElement()
              : null;
      @NonNls
      String problemText =
          StringUtil.replace(
              StringUtil.replace(
                  template,
                  "#ref",
                  psiElement != null
                      ? ProblemDescriptorUtil.extractHighlightedText(descriptor, psiElement)
                      : ""),
              " #loc ",
              " ");

      Element element = refEntity.getRefManager().export(refEntity, parentNode, line);
      if (element == null) return;
      @NonNls
      Element problemClassElement =
          new Element(InspectionsBundle.message("inspection.export.results.problem.element.tag"));
      problemClassElement.addContent(myToolWrapper.getDisplayName());

      final HighlightSeverity severity;
      if (refEntity instanceof RefElement) {
        final RefElement refElement = (RefElement) refEntity;
        severity = getSeverity(refElement);
      } else {
        final InspectionProfile profile =
            InspectionProjectProfileManager.getInstance(getContext().getProject())
                .getInspectionProfile();
        final HighlightDisplayLevel level =
            profile.getErrorLevel(
                HighlightDisplayKey.find(myToolWrapper.getShortName()), psiElement);
        severity = level.getSeverity();
      }

      if (severity != null) {
        ProblemHighlightType problemHighlightType =
            descriptor instanceof ProblemDescriptor
                ? ((ProblemDescriptor) descriptor).getHighlightType()
                : ProblemHighlightType.GENERIC_ERROR_OR_WARNING;
        final String attributeKey =
            getTextAttributeKey(getRefManager().getProject(), severity, problemHighlightType);
        problemClassElement.setAttribute("severity", severity.myName);
        problemClassElement.setAttribute("attribute_key", attributeKey);
      }

      element.addContent(problemClassElement);
      if (myToolWrapper instanceof GlobalInspectionToolWrapper) {
        final GlobalInspectionTool globalInspectionTool =
            ((GlobalInspectionToolWrapper) myToolWrapper).getTool();
        final QuickFix[] fixes = descriptor.getFixes();
        if (fixes != null) {
          @NonNls Element hintsElement = new Element("hints");
          for (QuickFix fix : fixes) {
            final String hint = globalInspectionTool.getHint(fix);
            if (hint != null) {
              @NonNls Element hintElement = new Element("hint");
              hintElement.setAttribute("value", hint);
              hintsElement.addContent(hintElement);
            }
          }
          element.addContent(hintsElement);
        }
      }
      try {
        Element descriptionElement =
            new Element(InspectionsBundle.message("inspection.export.results.description.tag"));
        descriptionElement.addContent(problemText);
        element.addContent(descriptionElement);
      } catch (IllegalDataException e) {
        //noinspection HardCodedStringLiteral,UseOfSystemOutOrSystemErr
        System.out.println(
            "Cannot save results for "
                + refEntity.getName()
                + ", inspection which caused problem: "
                + myToolWrapper.getShortName());
      }
    }
  }