private static long gmtToEpoch(String gmtTime) throws Exception {
    SimpleDateFormat gmtFormat = new SimpleDateFormat("EEE, dd MMM yyyy HH:mm:ss z");
    gmtFormat.setTimeZone(TimeZone.getTimeZone("GMT"));
    Date date = gmtFormat.parse(gmtTime);
    return date.getTime();
  }
A utility class to represent the response structure returned by List named blob.
ambry-frontend/src/integration-test/java/com/github/ambry/frontend/FrontendIntegrationTestBase.java