NPE on PubSubEngine#shutdown on server shutdown
Description
when restarting OpenFire 3.9.1 via "service openfire restart" on a Debian7 System it gives an exception:
It seems that
returns a NullPointer, on which then .stop() is called.
Environment
None
Activity
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Tom Evans
April 25, 2014, 11:26 PM
Added check for null service reference as well as null manager reference.
