java.lang.AssertionError: Values (len=1) don't match models (len=2).[pom]
   at org.netbeans.modules.maven.navigator.POMModelVisitor$SingleFieldNode.getShortDescription(POMModelVisitor.java:1180)
   at org.openide.explorer.view.VisualizerNode.getShortDescription(VisualizerNode.java:208)
   at org.openide.explorer.view.TreeView$ExplorerTree.getToolTipText(TreeView.java:2131)
   at javax.swing.ToolTipManager.checkForTipChange(ToolTipManager.java:622)
   at javax.swing.ToolTipManager.mouseMoved(ToolTipManager.java:594)
   at java.awt.AWTEventMulticaster.mouseMoved(AWTEventMulticaster.java:313)
   at java.awt.Component.processMouseMotionEvent(Component.java:6308)
   at javax.swing.JComponent.processMouseMotionEvent(JComponent.java:3285)
   at java.awt.Component.processEvent(Component.java:6032)
   at java.awt.Container.processEvent(Container.java:2041)
   at java.awt.Component.dispatchEventImpl(Component.java:4630)
   at java.awt.Container.dispatchEventImpl(Container.java:2099)
   at java.awt.Component.dispatchEvent(Component.java:4460)
   at java.awt.LightweightDispatcher.retargetMouseEvent(LightweightDispatcher.java:4574)
   at java.awt.LightweightDispatcher.processMouseEvent(LightweightDispatcher.java:4251)
   at java.awt.LightweightDispatcher.dispatchEvent(LightweightDispatcher.java:4168)
   at java.awt.Container.dispatchEventImpl(Container.java:2085)
   at java.awt.Window.dispatchEventImpl(Window.java:2478)
   at java.awt.Component.dispatchEvent(Component.java:4460)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:134)
   at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
   at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
   at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
   at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)