I ended up creating a special return class that can hold a value as well as return an exception to the client caller, but I would be nice to be able to have this automatically wrapped. I tried a custom annotation and interceptor on my @WebRemote method that would catch exceptions and change the return type to my custom object, but my interceptor was never called. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3989373#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...