@Override
    public @NotNull IntentionPreviewInfo generatePreview(@NotNull Project project, @NotNull ProblemDescriptor previewDescriptor) {
      Property property = myPropertyPointer.getElement();
      if (property == null) return IntentionPreviewInfo.EMPTY;

      PsiFile containingFile = myPropertyPointer.getContainingFile();
      assert containingFile != null;
      String propertyKey = property.getKey();
      String newValue = NlsCapitalizationUtil.fixValue(myValue, myCapitalization);

      return new IntentionPreviewInfo.CustomDiff(PropertiesFileType.INSTANCE,
                                                 containingFile.getName(),
                                                 property.getText(),
                                                 propertyKey + "=" + newValue);
    }
@Override
    public @NotNull IntentionPreviewInfo generatePreview(@NotNull Project project, @NotNull ProblemDescriptor previewDescriptor)