public static final TimeZone GMT_TIMEZONE = TimeZone.getTimeZone("GMT");
public static final String RFC1123_DATE_FORMAT = "EEE, dd MMM yyyy HH:mm:ss zzz";
Thanks Arun Patidar and Rishi Solanki for the details. Here is the patch for issue.
Committed changes in trunk at rev: 1750532.
Thanks Rishi Solanki and Rohit Koushal for your contribution.