Actually I don't see the big problem here: - we don't need to upgrade whole codebase to the java 5 syntax (time consuming + branch sync issues) - when you bug fix you code with backport (svn merge) in mind so probably won't use new syntax anywa... - when you add new features you change/refactor a lot so such part can't be backported easily, and probably isn't supposed to be backported at all.... So lets naturally use java 5 in trunk for new stuff and during refactorings, and don't upgrade old code "just to". View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4061064#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...