I'm guessing for a Cache that has multiple regions that the key/value pairs will likely be different types. But I concede there may be cases where the data types are homogeneous across the cache. The only downside I see, from a user perspective, is that one might wonder if it is good practice to use a untyped cache. The best argument against typing, is that as the eventual practice will be to share a different types of data in a single cache, rather than have multiple caches. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4028247#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...