private void addDescriptors(ProblemDescriptor @Nullable [] descriptors) {
      if (descriptors != null) {
        for (ProblemDescriptor descriptor : descriptors) {
          if (descriptor != null) {
            myHolder.registerProblem(descriptor);
          }
          else {
            Class<?> inspectionToolClass = LocalInspectionTool.this.getClass();
            LOG.error(PluginException.createByClass(
              "Array returned from checkFile() method of " + inspectionToolClass + " contains null element: " +
              Arrays.toString(descriptors),
              null, inspectionToolClass));
          }
        }
      }
    }
private void addDescriptors(ProblemDescriptor @Nullable [] descriptors)