java.lang.NullPointerException
        at org.apache.maven.extension.DefaultBuildExtensionScanner.createKey(DefaultBuildExtensionScanner.java:246)
        at org.apache.maven.extension.DefaultBuildExtensionScanner.scanInternal(DefaultBuildExtensionScanner.java:158)
        at org.apache.maven.extension.DefaultBuildExtensionScanner.scanForBuildExtensions(DefaultBuildExtensionScanner.java:120)
        at org.apache.maven.embedder.MavenEmbedder.readProject(MavenEmbedder.java:377)
        at org.apache.maven.embedder.MavenEmbedder.readProjectWithDependencies_aroundBody0(MavenEmbedder.java:416)
        at org.apache.maven.embedder.MavenEmbedder.readProjectWithDependencies_aroundBody1$advice(MavenEmbedder.java:304)
        at org.apache.maven.embedder.MavenEmbedder.readProjectWithDependencies(MavenEmbedder.java:1)
        at org.codehaus.mevenide.netbeans.NbMavenProject.getOriginalMavenProject(NbMavenProject.java:198)
        at org.codehaus.mevenide.netbeans.api.ProjectURLWatcher.getPackagingType(ProjectURLWatcher.java:172)
        at org.codehaus.mevenide.netbeans.apisupport.MavenApisupportLookupProvider$Provider.checkNbm(MavenApisupportLookupProvider.java:70)
        at org.codehaus.mevenide.netbeans.apisupport.MavenApisupportLookupProvider$Provider.<init>(MavenApisupportLookupProvider.java:58)
        at org.codehaus.mevenide.netbeans.apisupport.MavenApisupportLookupProvider.createAdditionalLookup(MavenApisupportLookupProvider.java:45)
        at org.netbeans.spi.project.support.LookupProviderSupport$DelegatingLookupImpl.doDelegate(LookupProviderSupport.java:167)
        at org.netbeans.spi.project.support.LookupProviderSupport$DelegatingLookupImpl.<init>(LookupProviderSupport.java:126)
        at org.netbeans.spi.project.support.LookupProviderSupport$DelegatingLookupImpl.<init>(LookupProviderSupport.java:116)
        at org.netbeans.spi.project.support.LookupProviderSupport.createCompositeLookup(LookupProviderSupport.java:89)
        at org.codehaus.mevenide.netbeans.NbMavenProject.getLookup(NbMavenProject.java:492)
        at org.netbeans.modules.projectapi.ProjectSharabilityQuery.getSharability(ProjectSharabilityQuery.java:66)
        at org.netbeans.api.queries.SharabilityQuery.getSharability(SharabilityQuery.java:110)
        at org.netbeans.modules.versioning.spi.VCSContext.addProjectFiles(VCSContext.java:270)
        at org.netbeans.modules.versioning.spi.VCSContext.forNodes(VCSContext.java:143)
        at org.netbeans.modules.versioning.ProjectMenuItem.getOwners(ProjectMenuItem.java:134)
        at org.netbeans.modules.versioning.ProjectMenuItem.createItems(ProjectMenuItem.java:79)
        at org.netbeans.modules.versioning.ProjectMenuItem.access$100(ProjectMenuItem.java:66)
        at org.netbeans.modules.versioning.ProjectMenuItem$DynamicDummyItem.getMenuPresenters(ProjectMenuItem.java:193)
        at org.netbeans.modules.openide.awt.DefaultAWTBridge.convertComponents(DefaultAWTBridge.java:105)
        at org.openide.util.Utilities.actionsToPopup(Utilities.java:2685)
        at org.openide.util.Utilities.actionsToPopup(Utilities.java:2754)
        at org.openide.explorer.view.TreeView.createPopup(TreeView.java:918)
        at org.openide.explorer.view.TreeView$PopupAdapter.showPopup(TreeView.java:1376)
        at org.openide.awt.MouseUtils$PopupMouseAdapter.maybePopup(MouseUtils.java:182)
        at org.openide.awt.MouseUtils$PopupMouseAdapter.mousePressed(MouseUtils.java:173)
        at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:222)
        at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:221)
        at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:221)
        at java.awt.Component.processMouseEvent(Component.java:5599)
        at javax.swing.JComponent.processMouseEvent(JComponent.java:3135)
        at java.awt.Component.processEvent(Component.java:5367)
        at java.awt.Container.processEvent(Container.java:2010)
        at java.awt.Component.dispatchEventImpl(Component.java:4068)
        at java.awt.Container.dispatchEventImpl(Container.java:2068)
        at java.awt.Component.dispatchEvent(Component.java:3903)
        at java.awt.LightweightDispatcher.retargetMouseEvent(LightweightDispatcher.java:4256)
        at java.awt.LightweightDispatcher.processMouseEvent(LightweightDispatcher.java:3933)
        at java.awt.LightweightDispatcher.dispatchEvent(LightweightDispatcher.java:3866)
        at java.awt.Container.dispatchEventImpl(Container.java:2054)
        at java.awt.Window.dispatchEventImpl(Window.java:1791)
        at java.awt.Component.dispatchEvent(Component.java:3903)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:463)
        at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:104)
        at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:269)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:190)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:184)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:176)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)