code: static URL lookupResource(String path) {
          for (LocaleDrivenResourceProvider provider : getLocaleDrivenResourceProviders()) {
              try {
                  URL url = provider.lookup(path);
                  if (url != null) {
                      return url;
                  }
              } catch (Exception e) {
                  LOGGER.log(Level.WARNING, "Failed to look up URL for " + path + " from " + provider, e);
              }
          }
          return null;
      }
docs: /* package