I will hazard a guess and say this is the route of my problem anonymous wrote : | Local caches don't join a cluster and don't communicate with other caches in a cluster. Therefore their elements don't need to be serializable - however, we recommend making them serializable, enabling a user to change the cache mode at any time. The dependency on the JGroups library is still there, although a JGroups channel is not started. | | So a JGroups channel aint open and i assume effects my ClusteredCacheLoader??? If this is the case, any way of manually opening up the channel?? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4108579#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...