I created jboss seam project(seam gen) and saw xxx.ear dir under .../deploy dir at the begining. However, I don't see xxx.ear dir anymore and there is xxx.ear file(not folder) instead. (I think this also causing hot deployment failure.) So, no matter what I do, I don't see ear folder under .../deploy anymore. I didn't really change any config file or setting. Why does my project stop creating xxx.ear folder under /deploy dir? What are the differences between xxx.ear file and xxx.ear folder?