@Nullable
  private static ResourceBundle resolveResourceBundleByKey(@NotNull final String key, @NotNull final Project project) {
    final Ref<ResourceBundle> bundleRef = Ref.create();
    final boolean r = PropertiesReferenceManager.getInstance(project).processAllPropertiesFiles((baseName, propertiesFile) -> {
      if (propertiesFile.findPropertyByKey(key) != null) {
        if (bundleRef.get() == null) {
          bundleRef.set(propertiesFile.getResourceBundle());
        }
        else {
          return bundleRef.get().equals(propertiesFile.getResourceBundle());
        }
      }
      return true;
    });
    return r ? bundleRef.get() : null;
  }
@Nullable
  private static ResourceBundle resolveResourceBundleByKey(@NotNull final String key, @NotNull final Project project)