Setting this bug to verified for Release Notes.
I doubt this bug should be in release notes for 6.2.1. It's a one-off patch for JDG 6.1. Furthermore, JDG 6.2 already contains the correct version of JBoss Marshalling. So this was already fixed in JDG 6.2.
This product has been discontinued or is no longer tracked in Red Hat Bugzilla.