I lost you there. I did the same test on 1.4.0.SP1 and 1.4.1.CR1 I have a MBean with tree methods one creates on the cache the object TestData.The second removes the object. and getObject The scenario is simple , I create and when remove (no restart this time) With 1.4.0.SP1 there is no "leftovers" in the file system. But with 1.4.1.CR1 there ARE "leftovers" in the file system. With a simple Object like TestData after delete the getObject returns null on both versions . But with a complicated Object its partially removes it , and you get a strange View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3997580#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...