@Override
      public String getLocationString() {
        PsiFile file = psiClass.getContainingFile();
        if (file instanceof PsiClassOwner) {
          PsiClassOwner classOwner = (PsiClassOwner)file;
          String packageName = classOwner.getPackageName();
          if (packageName.isEmpty()) return null;
          LanguageLevel version = JavaMultiReleaseUtil.getVersion(file);
          if (version != null) {
            packageName += "/" + JavaPsiBundle.message("class.file.version", version.feature());
          }
          return NewUiValue.isEnabled() && !ApplicationManager.getApplication().isUnitTestMode()
                 ? JavaPsiBundle.message("aux.context.display", packageName) : "(" + packageName + ")";
        }
        return null;
      }
@Override
      public String getLocationString()