Here's the thing. Machine 1 might store 10, but then if you call Machine 2, it might store 0. What you need to do is more like: | Integer count = (Integer)cache.get("/a/b/c", "Key1"); | if (count == null) // initialize | count = 0; | count = count + 1; | cache.put("/a/b/c", "Key1", count); | But there's a potential race condition here. Use pessimistic locking and transactions to ensure this is atomic. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4132286#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...