LDAP authentication in different J2EE servers is different, unfortunately.

Eg. If I develop a code in JBoss for LDAP authentication with LDAP login module of JBoss, 99% chances are that it will not run in WebSphere or any other J2EE containers. Maybe if I import that library jar files, it might work. I’m looking at just porting the application and not having to worry about library files, unless we have written the libraries. Libraries of J2EE servers must not be copied from one server to the other. I don’t know if that could be called code ethics!!

Is there a J2EE server independent module for LDAP or way of programming for doing this?

Is the solution – code from scratch using JNDI the only method? Please advice.