One problem with that code is that in case of race start() will be called on the old store even if it's already started, i.e. it should read: | if (oldStore != null) | { | store = oldStore; | } | else | { | store.start(); | } | You could just have the store ignore duplicate calls to start(). but that's a bit messy imho View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4189727#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...