As i understand, my exception is a result of "double" binding to the same name. I don't know, why it happens, but it occurs only when i redeploy my ejbs. If i restart whole server, i have another exception: java.lang.ClassCastException at com.sun.corba.se.impl.javax.rmi.PortableRemoteObject.narrow(PortableRemoteObject.java:229) at javax.rmi.PortableRemoteObject.narrow(PortableRemoteObject.java:137) at org.jboss.ejb3.iiop.IORFactory.createProxy(IORFactory.java:154) ... 136 more Caused by: java.lang.ClassCastException: Object is not of remote type javax.ejb.EJBObject at com.sun.corba.se.impl.javax.rmi.PortableRemoteObject.narrow(PortableRemoteObject.java:221) ... 138 more If i use EJBObject - i have ejb2, isn't so? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4033663#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...