docs: public static String get(URI metadataService, String path) {
      checkNotNull(metadataService, "metadataService");
      checkArgument(metadataService.getPath().endsWith("/"),
                    "metadataService must end with '/'; %s provided",
                    metadataService);
      checkNotNull(path, "path");
      InputStream stream = null;
      try {
        stream = openStream(metadataService + path);
        String content = slurp(new InputStreamReader(stream));
        if (content.isEmpty()) {
          return null;
        }
        return content;
      } catch (IOException e) {
        return null;
      } finally {
        try {
          if (stream != null) {
            stream.close();
          }
        } catch (IOException e) {
        }
      }
    }