Merge pull request #4061 from Coduz/fix-DeviceConfigurationWithEmtpyV… #2576

Job	Run time
Build	5m 48s
test-broker	26m 49s
test-brokerAcl	17m 18s
test-tag	2m 47s
test-connection	14m 16s
test-datastore	15m 40s
test-device	4m 44s
test-device-management	12m 48s
test-user	3m 58s
test-jobsAndScheduler	2m 49s
test-security	5m 26s
test-userIntegration	8m 33s
test-userIntegrationBase	7m 27s
test-accountAndTranslator	6m 13s
test-jobEngineRestartOnlineDevice	13m 20s
test-jobEngineRestartOfflineDevice	9m 49s
test-jobEngineStartOfflineDevice	10m 32s
test-jobEngineStartOnlineDevice	13m 57s
test-jobEngineStepDefinitions	8m 25s
test-jobsIntegration	9m 51s
test-jobsIntegrationBase	9m 32s
junit-tests	8m 36s
test-api-auth	6m 51s
test-deviceRegistry	12m 28s
test-endpoint	7m 54s
test-jobEngineRestartOnlineDeviceSecondPart	11m 14s
test-jobEngineServiceStop	13m 16s
test-RoleAndGroup	2m 51s
build-javadoc	10m 23s
test-api-corsfilter	7m 7s
	4h 50m 42s

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