Description:
WebSphere IMSBus and Messaging Queue Error:
Exception: com.ibm.ws.sib.msgstore.PersistenceException: CWSIS1500E: The dispatcher cannot accept work.
Solution:
This error indicates a problem with the IMSBus and Messaging Queue.
This is a known/fixed Websphere Bug.
Here is a link to the Websphere Bug Fix List:
http://www-01.ibm.com/support/docview.wss?uid=swg27016776
The fix is listed under tracking number: JR33683