This is in response to a user forum thread http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4089709#... and it's corresponding JIRA JBCACHE-1204. What will happen for JBC 2.1.0.GA is that the default behaviour is: 1. If an MBean server is detected, do not register a shutdown hook. 2. Else, register a shutdown hook. To make things more sophisticated for cases where an MBean server may not control shutdown or a non-MBean server environment may control shutdown (such as a JBoss-MC standalone environment) there is a config parameter: | | <!-- | Available options: | DEFAULT (this is selected if this config element is omitted) | REGISTER (forces registering the hook, even if an MBean server is detected) | DONT_REGISTER (does not register a hook, even if an MBean server is not detected) | --> | <attribute name="ShutdownHookBehaviour">DEFAULT</attribute> | | Any thoughts or comments on this? Brian? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4117032#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...