Both my ears need some common jars like
If i pleace all the above required jars in my ear ,my ear size would grow big in size.
Earlier i used to deploy in Jboss 4.x and JBoss 5.1 where i userd to place all the requires jars as well as application relation proerty files in $JBOSS_HOME/profile/lib/
I'm not the big JBoss expert around here, but I believe modules are the new concept that replaces lib jars. Some of the jars you listed are included as modules out of the box, and at most you will just have to update the extensions section your standalone.xml configuration file (if you are running a single server). For the others, you can create your own modules.
Greg is correct, JBoss AS7 and WildFly (the new name of JBoss AS) uses module classloaders. By default, some modules are shipped out of the box. If you have some specific jars that you want to share between applications then you can create a module for it and add a dependency on that module from your application.