WAS 6.1 EAR Build issue

[benjamin_...@uhc.com]

We are using RAD 7.0.6 and WAS 6.1.0.17 and trying to build a basic EAR, 1 WAR and 1 EJB project, along with other plan Java projects. In the IDE its working fine and when we use RAD to export the EAR it builds and deploys fine. However when we try to build through Ant it is failing and we can't figure out why.
The build finishes successfully but does not build all of the EJB jars. it is failing in the package-bin target while building our ejb project with the error below. We have located the jar that the missing class is in and have modified the build script to print the classpath as part of this target to make sure the jar is included. SCM team has said that the jar is where it should be but we continue to get ClassNotFound. Any ideas...

INFO - [wsejbdeploy] Error executing deployment: java.lang.ClassNotFoundException. Error is com.ibm.etools.ejbdeploy.batch.plugin.BatchExtension.
INFO - [wsejbdeploy] java.lang.ClassNotFoundException: com.ibm.etools.ejbdeploy.batch.plugin.BatchExtension
INFO - [wsejbdeploy] at java.lang.Class.forName(Class.java:131)
INFO - [wsejbdeploy] at com.ibm.etools.ejbdeploy.batch.impl.BootLoaderLoader.run(BootLoaderLoader.java:237)
INFO - [wsejbdeploy] at com.ibm.etools.ejbdeploy.batch.impl.BatchDeploy.execute(BatchDeploy.java:99)
INFO - [wsejbdeploy] at com.ibm.etools.ejbdeploy.EJBDeploy.execute(EJBDeploy.java:83)
INFO - [wsejbdeploy] at com.ibm.etools.ejbdeploy.EJBDeploy.main(EJBDeploy.java:313)
INFO - [wsejbdeploy] EJBDeploy level: o0619.34

[eme...@us.ibm.com]

Did you ever figure this out? Also, when you said you included the jar that was contained the class not found, I'm assuming you mean the com.ibm.etools.ejbdeploy.batch.plugin.BatchExtension class... so what jar is this?

I have Googled the error I'm seeing:

[ejbdeploy] Error executing deployment: java.lang.ClassNotFoundException. Error is com.ibm.etools.ejbdeploy.batch.plugin.BatchExtension.
[ejbdeploy] java.lang.ClassNotFoundException: com.ibm.etools.ejbdeploy.batch.plugin.BatchExtension

and there seem to be plenty of posts about the error or ones that sound related, but they all seem to have 0 replies.

Thanks for any clues you can provide!