Merge pull request #2614 from guusdk/OF-2911_NPE #3378

Job	Run time
check_branch	2s
Check if database upgrade tests should be run	5s
Build Openfire from source (17, zulu)	17m 26s
Build Openfire from source (21, zulu)	17m 16s
Execute Smack-based CI tests	59s
Execute aioxmpp-based CI tests	1m 44s
Generate DEB artifact	2m 55s
Execute Connectivity CI tests	35s
Test SQL Server Upgrades	1m 5s
Test Postgres Upgrades	54s
Test MySQL Upgrades	1m 10s
Check if Docker Hub secrets exist	1s
Publish to Maven	2m 49s
Publish to Docker Hub	0s
Test tagged images published to Docker Hub	0s
	47m 1s

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