after deploying all the ears then the JBoss server will show "started" message in the console. so here i am not seeing "started" message at all. which means JBoss is not started. I think it is hanged up while deploying the ear file it iself. so i am not understanding what could be the reason for it. Because same ear file when i used in other JBoss by changing the connection information, it worked fine without any errors.