webMethods version?
Can you create a another jdbc connection with different name and then create your adapter notification on the new connection that was created.
Connection that you create let it be specific to a notification and make sure it does not have any depedency on adapter services.
I assume this should work. Try to reproduce the error as before…
If still issue exists lets see of other options (Fix levels, SAG Global Support)
#Adapters-and-E-Standards#Integration-Server-and-ESB#webMethods