"thomas.diesler(a)jboss.com" wrote : Set the Compliance level to 5.0 (Eclipse -> Window -> Preferences -> Java -> Compiler -> Compiler compliance level For who are these instructions meant for? Or what will this do? I actually noticed this errors when running "mvn clean install" from cli. While my IntelliJ also complained. ;-) View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4252186#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...