WAS ND v6 - Windows 2003 server - 2 way horizontal cluster with WAS ND on a third node.

Getting an exception while deploying updated jar file:
ADMA5065E: Exception in FileMergeTask com.ibm.etools.j2ee.commonarchivecore.exception.Sa veFailureException:

The invalid file "#ProductSelectorDisplayControllerCmd.java.1.1" was in a jar file and was removed but still getting the exception while attempting to deploy the updated jar file using the WAS admin console single file update option. The same exception is thrown when trying to deploying an EJB JAR file using the single module option. Also, the same result while trying to deploy a test JSP file packed into a ZIP file using the partial application update option.

Note that a clean up of the \wstemp didn't seem to help either. Any ideas where/whether the deploy process refers to previous versions of the jar files?