private static boolean hasNonInvertedCalls(final RefMethod refMethod) {
   final Boolean alwaysInverted = refMethod.getUserData(ALWAYS_INVERTED);
   if (alwaysInverted == null) return true;
   if (refMethod.isExternalOverride()) return true;
   if (refMethod.isReferenced() && !alwaysInverted.booleanValue()) return true;
   final Collection<RefMethod> superMethods = refMethod.getSuperMethods();
   for (RefMethod superMethod : superMethods) {
     if (hasNonInvertedCalls(superMethod)) return true;
   }
   return false;
 }
  private synchronized void writeOutput(
      @NotNull final CommonProblemDescriptor[] descriptions, @NotNull RefEntity refElement) {
    final Element parentNode = new Element(InspectionsBundle.message("inspection.problems"));
    exportResults(descriptions, refElement, parentNode);
    final List list = parentNode.getChildren();

    @NonNls final String ext = ".xml";
    final String fileName = ourOutputPath + File.separator + myToolWrapper.getShortName() + ext;
    final PathMacroManager pathMacroManager =
        PathMacroManager.getInstance(getContext().getProject());
    PrintWriter printWriter = null;
    try {
      new File(ourOutputPath).mkdirs();
      final File file = new File(fileName);
      final CharArrayWriter writer = new CharArrayWriter();
      if (!file.exists()) {
        writer
            .append("<")
            .append(InspectionsBundle.message("inspection.problems"))
            .append(" " + GlobalInspectionContextBase.LOCAL_TOOL_ATTRIBUTE + "=\"")
            .append(Boolean.toString(myToolWrapper instanceof LocalInspectionToolWrapper))
            .append("\">\n");
      }
      for (Object o : list) {
        final Element element = (Element) o;
        pathMacroManager.collapsePaths(element);
        JDOMUtil.writeElement(element, writer, "\n");
      }
      printWriter =
          new PrintWriter(
              new BufferedWriter(
                  new OutputStreamWriter(
                      new FileOutputStream(fileName, true), CharsetToolkit.UTF8_CHARSET)));
      printWriter.append("\n");
      printWriter.append(writer.toString());
    } catch (IOException e) {
      LOG.error(e);
    } finally {
      if (printWriter != null) {
        printWriter.close();
      }
    }
  }