I change my question... If I use the Eclipse "clean" command for the project, I get the compilation of all the project java files... and a little more: jboss seam's class files are also compiled under test-build and then copied under exploded-archives/[project].jar Is it on purpose? I tried without copying seam class files in the [project].jar. It ran fine. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4031385#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...