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via XWiki.org JIRA by Raffaello Pelagalli, 1 year ago
This exception has no message.
java.lang.NullPointerException: 	at org.xwiki.configuration.internal.DefaultConfigurationSourceCollection.initialize(DefaultConfigurationSourceCollection.java:63)	at org.xwiki.plexus.lifecycle.phase.InitializePhase.execute(InitializePhase.java:44)	at org.codehaus.plexus.lifecycle.AbstractLifecycleHandler.start(AbstractLifecycleHandler.java:128)	at org.codehaus.plexus.component.manager.AbstractComponentManager.startComponentLifecycle(AbstractComponentManager.java:142)	at org.codehaus.plexus.component.manager.AbstractComponentManager.createComponentInstance(AbstractComponentManager.java:132)	at org.codehaus.plexus.component.manager.ClassicSingletonComponentManager.getComponent(ClassicSingletonComponentManager.java:90)	at org.codehaus.plexus.DefaultComponentLookupManager.lookup(DefaultComponentLookupManager.java:147)	at org.codehaus.plexus.DefaultPlexusContainer.lookup(DefaultPlexusContainer.java:283)	at org.codehaus.plexus.component.composition.AbstractComponentComposer.findRequirement(AbstractComponentComposer.java:241)	at org.codehaus.plexus.component.composition.FieldComponentComposer.assignRequirementToField(FieldComponentComposer.java:66)	at org.codehaus.plexus.component.composition.FieldComponentComposer.assignRequirement(FieldComponentComposer.java:57)	at org.codehaus.plexus.component.composition.AbstractComponentComposer.assembleComponent(AbstractComponentComposer.java:143)	at org.codehaus.plexus.component.composition.DefaultComponentComposerManager.assembleComponent(DefaultComponentComposerManager.java:71)