Exception : Throwable while attempt to get a new connection

[murthy_j2ee]

Hi All,
Can any body please tell me how to call ejb from a java bean. I have done it it as below.

Here is the client calling an EJB..............
{

Context ctx = new InitialContext();
Object obj = ctx.lookup("UserAuthentication_Session");
UserAuthentication_SessionHome home=(UserAuthentication_SessionHome)javax.rmi.PortableRemoteObject.narrow(obj,UserAuthentication_SessionHome.class);
UserAuthentication_Session rem = home.create();
loginValue=rem.validateLoginDetails(username,password);
}

Here is ejb-jar.xml..............................


UserAuthentication_Session
<ejb-name>UserAuthentication_Session</ejb-name>
com.prospecta.WSOProject.User_Authentication.ejb.UserAuthentication_SessionHome
com.prospecta.WSOProject.User_Authentication.ejb.UserAuthentication_Session
<ejb-class>com.prospecta.WSOProject.User_Authentication.ejb.UserAuthentication_SessionBean</ejb-class>
<session-type>Stateless</session-type>
<transaction-type>Container</transaction-type>

Here is jboss.xml to specify the jndi name for my EJB.......................................


<ejb-name>UserAuthentication_Session</ejb-name>
<jndi-name>UserAuthentication_Session</jndi-name>


Here is the error trace....................................

Throwable while attempt to get a new connection..

please tell me what was the problem, and also please tell me how to configure it in jboss.