"Process[ce] is up" log wrongly appears after ce startup failed

> 2017.09.20 11:07:18 INFO  ce[][o.s.c.c.CePluginRepository] Load plugins
> 2017.09.20 11:07:18 ERROR ce[][o.s.ce.app.CeServer] Compute Engine startup failed
> org.sonar.updatecenter.common.exception.PluginNotFoundException: The plugin 'licensemanager' required by 'cobol' is missing.
> 	at org.sonar.updatecenter.common.PluginReferential.addOutgoingDependency(PluginReferential.java:140)
> 	at org.sonar.updatecenter.common.PluginReferentialManifestConverter.lambda$fromPluginManifests$0(PluginReferentialManifestConverter.java:60)
> 	at java.lang.Iterable.forEach(Iterable.java:75)
> 	at org.sonar.updatecenter.common.PluginReferentialManifestConverter.fromPluginManifests(PluginReferentialManifestConverter.java:56)
> 	at org.sonar.server.plugins.PluginReferentialMetadataConverter.getInstalledPluginReferential(PluginReferentialMetadataConverter.java:45)
> 	at org.sonar.server.plugins.InstalledPluginReferentialFactory.init(InstalledPluginReferentialFactory.java:54)
> 	at org.sonar.server.plugins.InstalledPluginReferentialFactory.start(InstalledPluginReferentialFactory.java:38)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> 	at java.lang.reflect.Method.invoke(Method.java:498)
> 	at org.picocontainer.lifecycle.ReflectionLifecycleStrategy.invokeMethod(ReflectionLifecycleStrategy.java:110)
> 	at org.picocontainer.lifecycle.ReflectionLifecycleStrategy.start(ReflectionLifecycleStrategy.java:89)
> 	at org.sonar.core.platform.ComponentContainer$1.start(ComponentContainer.java:320)
> 	at org.picocontainer.injectors.AbstractInjectionFactory$LifecycleAdapter.start(AbstractInjectionFactory.java:84)
> 	at org.picocontainer.behaviors.AbstractBehavior.start(AbstractBehavior.java:169)
> 	at org.picocontainer.behaviors.Stored$RealComponentLifecycle.start(Stored.java:132)
> 	at org.picocontainer.behaviors.Stored.start(Stored.java:110)
> 	at org.picocontainer.DefaultPicoContainer.potentiallyStartAdapter(DefaultPicoContainer.java:1016)
> 	at org.picocontainer.DefaultPicoContainer.startAdapters(DefaultPicoContainer.java:1009)
> 	at org.picocontainer.DefaultPicoContainer.start(DefaultPicoContainer.java:767)
> 	at org.sonar.core.platform.ComponentContainer.startComponents(ComponentContainer.java:143)
> 	at org.sonar.ce.container.ComputeEngineContainerImpl.start(ComputeEngineContainerImpl.java:178)
> 	at org.sonar.ce.ComputeEngineImpl.startup(ComputeEngineImpl.java:45)
> 	at org.sonar.ce.app.CeServer$CeMainThread.startup(CeServer.java:165)
> 	at org.sonar.ce.app.CeServer$CeMainThread.attemptStartup(CeServer.java:152)
> 	at org.sonar.ce.app.CeServer$CeMainThread.run(CeServer.java:140)
> Caused by: java.util.NoSuchElementException: Unable to find plugin with key licensemanager
> 	at org.sonar.updatecenter.common.PluginReferential.findPlugin(PluginReferential.java:87)
> 	at org.sonar.updatecenter.common.PluginReferential.addOutgoingDependency(PluginReferential.java:126)
> 	... 26 common frames omitted
> 2017.09.20 11:07:18 INFO  app[][o.s.a.SchedulerImpl] Process[ce] is up
> 2017.09.20 11:07:18 INFO  app[][o.s.a.SchedulerImpl] SonarQube is up
> 11:07:18.513 INFO  Reset data
> 2017.09.20 11:07:18 INFO  app[][o.s.a.SchedulerImpl] Process [ce] is stopped

Process[ce] is up