"waynebaylor" wrote : i just looked in Enterprise JavaBeans 3.0 (page 106) and it says the fetch attribute of @Basic is just a hint and the persistence provider is allowed to eagerly load the property. That's not realy nice, you should have the posibility to don't load an (maybe huge) byte[] if you don't need it in this transaction, but in another. The single byte[] on my side is about 1.5MB, but after a while (some days, maybe earlier with heavy traffic) i get an OOM an the HeapDump shows that the EntityManager holds a few hundred MB of byte[] (witout me using them). What can i do about that? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4105352#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...