I think it is the .exploded build setup by seam-gen you are referring to - it have always happend but i'm actually not sure why it happens. best guess is that it is because you save a .java file and then the .class file is generated resulting in two builds...or because the build it self generates stuff into the exploded dir which then triggers another build again View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4180151#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...