NullPointerException error in Eclipse when creating DU service Events

What steps will reproduce the problem?
1. Trying to follow the 
https://community.jboss.org/wiki/HelloSLEEWorldServiceJAINSLEETutorial

I have encountered all the problems and got to the exception thrown when 
creating the DU service event similar to this 
http://code.google.com/p/jain-slee/issues/detail?id=5

I tried installing the latest software but eclipse says a newer version is 
already installed 
http://hudson.jboss.org/hudson/view/Mobicents/job/Mobicents-EclipSLEE/lastSucces
sfulBuild/artifact/

Eclipse version

Eclipse Java EE IDE for Web Developers.
Version: Juno Service Release 1
Build id: 20120920-0800

Slee version

mobicents-jainslee-2.7.0.FINAL-jboss-5.1.0.GA

eclipse slee plugin
org.mobicents.eclipslee.servicecreation_2.1.0.FINAL.jar

2.
3.

What is the expected output? What do you see instead?

Same error output as below

Please use labels and text to provide additional information.

Original issue reported on code.google.com by crou...@gmail.com on 13 Nov 2012 at 3:56

Merged into: #5

sean-cc / jain-slee

NullPointerException error in Eclipse when creating DU service Events #10