Worked very well!
After facing an xmlaccess.sh exception in the z/OS WP8.0 Job EJPSBCA:
[xmlaccess] Caused by: com.ibm.wps.command.applications.AppAlreadyExistsException: EJPPF0181E: Error occurred. The id=wp.ap.impersonation already exists for stored standard portlet application wp.ap.impersonation in the XML element portlet-app impersonation.war.
...
[xmlaccess] Caused by: com.ibm.wps.pe.mgr.exceptions.DuplicateAppException: EJPPF0181E: Error occurred. The id=wp.ap.impersonation already exists for stored standard portlet application wp.ap.impersonation in the XML element portlet-app impersonation.war.
I deleted the ConfigEngine/log/* (in the profiles directory of WebSphere Portal) and ran the job again successfully. Deleting all log entries 'resets' the job to start over again. That also includes deletion of the Derby database which may hold references to already installed portlets from an earlier Abend of EJPSBCA. And led to the error.
After facing an xmlaccess.sh exception in the z/OS WP8.0 Job EJPSBCA:
[xmlaccess] Caused by: com.ibm.wps.command.applications.AppAlreadyExistsException: EJPPF0181E: Error occurred. The id=wp.ap.impersonation already exists for stored standard portlet application wp.ap.impersonation in the XML element portlet-app impersonation.war.
...
[xmlaccess] Caused by: com.ibm.wps.pe.mgr.exceptions.DuplicateAppException: EJPPF0181E: Error occurred. The id=wp.ap.impersonation already exists for stored standard portlet application wp.ap.impersonation in the XML element portlet-app impersonation.war.
I deleted the ConfigEngine/log/* (in the profiles directory of WebSphere Portal) and ran the job again successfully. Deleting all log entries 'resets' the job to start over again. That also includes deletion of the Derby database which may hold references to already installed portlets from an earlier Abend of EJPSBCA. And led to the error.