I have the exact same problem. Unfortunately I haven't found any solution for that since the last 5 months. All of my application problems and issues have been solved but this problem is something like a tumor that have existed in every release just for one webservice. others work perfectly. If anybody have any idea help me.
I use jboss 5.1.0 ga(jdk6), JDK 220.127.116.11. windows 2003 server