To understand the locking discussion you'd need to have a look at the classes in https://svn.jboss.org/repos/jbosscache/core/trunk/src/main/java/org/jboss... particularly PerElementLockContainer. The lock striping issue in general is that instead of having a lock per Fqn, there is a configurable number of shared locks, with Fqn mapping to a shared lock via a hash function. This can introduce lock conflict problems. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4219220#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...