JMS Exception is the root class of all JMS API exceptions. This exception is a result of a lower-level problem which is linked to the JMS API exception. This linked exception usually contains a Code/Reason which gives you a very specific issue to research.
Linked Exception can be fetched within Adeptia by using attached ‘Service Exception Script’ at JMS Target activity in Process Flow. Just perform right click on JMS Target activity in Process Flow and click on ‘Service Exception Dialog’ menu item:
It shall open up a dialog window where you need to paste the attached script:
Click on ‘Done’, save the Process Flow and re-execute it. Now you shall see JMS Linked Exception in corresponding Process Flow logs (under ‘Diagnostics’ category).