Im running Jboss 4.2.3 in a production environment and have this very same issue due to creating vast amounts of new JAXWS clients. I have a quite lock process to go through to upgrade the production environment, but I must do something to get rid of the restarts every 48hrs.
Is there any way to patch JBossWS in Jboss 4.2.3 or make a workarround to avoid this issue? The only one I can think of is a Pool of WS clients for my system, but that's no tiny fix that you just throw into a prod environment.
Anyone got any ideas or further info about this error?