"adrian(a)jboss.org" wrote : | These are completely unnecessary. MetaData is already immutable | (its a wrapper to the mutable context) and the ScopeKey becomes immutable (frozen) | once its used by the repository to register a context. Aha, ok. I was looking at the MetaData. The interface itself is immutable, but to prevent someone to actually cast it to mutable impl and then change the state, I added Unmodifiable wrapper. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4079207#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...