Hi Manik, thank you for your response. This indeed makes sense, though I forgot to mention that our custom CacheLoader is one-way; it does not write any values back to the store. Is there a way I can configure JBC so it does not try to persist the data using the CacheLoader? Regarding locks, is there a difference between a CacheLoader's put() into the cache and an externally called put()? I could discard the CacheLoader and load and put the values outside of the cache. Regards, Kai View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4157431#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...