java.lang.AssertionError
	at org.netbeans.modules.xml.xam.AbstractModelFactory.getModel(AbstractModelFactory.java:108)
	at org.netbeans.modules.xml.schema.model.SchemaModelFactory.getModel(SchemaModelFactory.java:95)
	at org.netbeans.modules.xml.schema.model.impl.IncludeImpl.resolveReferencedModel(IncludeImpl.java:78)
	at org.netbeans.modules.xml.axi.impl.AXIModelImpl.buildReferenceableCache(AXIModelImpl.java:275)
	at org.netbeans.modules.xml.axi.impl.ModelAccessImpl.sync(ModelAccessImpl.java:63)
	at org.netbeans.modules.xml.xam.AbstractModel.sync(AbstractModel.java:237)
	at org.netbeans.modules.xml.axi.impl.AXIModelImpl.sync(AXIModelImpl.java:185)
	at org.netbeans.modules.xml.xam.AbstractModelFactory.getModel(AbstractModelFactory.java:115)
	at org.netbeans.modules.xml.axi.AXIModelFactory.getModel(AXIModelFactory.java:76)
	at org.netbeans.modules.xml.axi.AXIModelFactory.getModel(AXIModelFactory.java:66)
	at org.netbeans.modules.xml.axi.impl.AXIModelImpl.lookupFromOtherModel(AXIModelImpl.java:115)
	at org.netbeans.modules.xml.axi.impl.Util.lookup(Util.java:94)
	at org.netbeans.modules.xml.axi.impl.Util.getAXIType(Util.java:166)
	at org.netbeans.modules.xml.axi.impl.ElementImpl.getType(ElementImpl.java:212)
	at org.netbeans.modules.xml.axi.impl.ElementProxy.getType(ElementProxy.java:263)
	at org.netbeans.modules.xml.axi.impl.ElementProxy.getType(ElementProxy.java:263)
	at org.netbeans.modules.xml.schema.abe.UIUtilities.getContentModelInfoLabel(UIUtilities.java:139)
	at org.netbeans.modules.xml.schema.abe.ElementPropertiesPanel.refreshItems(ElementPropertiesPanel.java:110)
	at org.netbeans.modules.xml.schema.abe.ElementPropertiesPanel.initialize(ElementPropertiesPanel.java:86)
	at org.netbeans.modules.xml.schema.abe.ElementPropertiesPanel.<init>(ElementPropertiesPanel.java:62)
	at org.netbeans.modules.xml.schema.abe.StartTagPanel.getNewAXIContainerPropertiesPanel(StartTagPanel.java:909)
	at org.netbeans.modules.xml.schema.abe.StartTagPanel.addElementPropertiesPanel(StartTagPanel.java:461)
	at org.netbeans.modules.xml.schema.abe.StartTagPanel.updateAttributes(StartTagPanel.java:392)
	at org.netbeans.modules.xml.schema.abe.StartTagPanel.initialize(StartTagPanel.java:220)
	at org.netbeans.modules.xml.schema.abe.StartTagPanel.<init>(StartTagPanel.java:105)
	at org.netbeans.modules.xml.schema.abe.ElementPanel.getNewStartTagPanel(ElementPanel.java:375)
	at org.netbeans.modules.xml.schema.abe.ElementPanel.initialize(ElementPanel.java:82)
	at org.netbeans.modules.xml.schema.abe.ElementPanel.<init>(ElementPanel.java:67)
	at org.netbeans.modules.xml.schema.abe.ElementsContainerPanel.visit(ElementsContainerPanel.java:81)
	at org.netbeans.modules.xml.axi.Element.accept(Element.java:59)
	at org.netbeans.modules.xml.schema.abe.ContainerPanel.addAllChildren(ContainerPanel.java:185)
	at org.netbeans.modules.xml.schema.abe.ContainerPanel.addAllChildren(ContainerPanel.java:170)
	at org.netbeans.modules.xml.schema.abe.ContainerPanel.initialize(ContainerPanel.java:92)
	at org.netbeans.modules.xml.schema.abe.ContainerPanel.<init>(ContainerPanel.java:80)
	at org.netbeans.modules.xml.schema.abe.ElementsContainerPanel.<init>(ElementsContainerPanel.java:55)
	at org.netbeans.modules.xml.schema.abe.CompositorPanel.<init>(CompositorPanel.java:90)
	at org.netbeans.modules.xml.schema.abe.ElementPanel.createChild(ElementPanel.java:165)
	at org.netbeans.modules.xml.schema.abe.ElementPanel.expandChild(ElementPanel.java:141)
	at org.netbeans.modules.xml.schema.abe.ElementPanel.handleExpandOrCollapse(ElementPanel.java:124)
	at org.netbeans.modules.xml.schema.abe.ElementPanel.access$300(ElementPanel.java:58)
	at org.netbeans.modules.xml.schema.abe.ElementPanel$2.actionPerformed(ElementPanel.java:115)
	at org.netbeans.modules.xml.schema.abe.ExpandCollapseButton.fireActionPerformedEvent(ExpandCollapseButton.java:103)
	at org.netbeans.modules.xml.schema.abe.ExpandCollapseButton.access$000(ExpandCollapseButton.java:53)
	at org.netbeans.modules.xml.schema.abe.ExpandCollapseButton$1.mouseClicked(ExpandCollapseButton.java:74)
	at java.awt.Component.processMouseEvent(Component.java:5520)
	at javax.swing.JComponent.processMouseEvent(JComponent.java:3135)
	at java.awt.Component.processEvent(Component.java:5282)
	at java.awt.Container.processEvent(Container.java:1966)
	at java.awt.Component.dispatchEventImpl(Component.java:3984)
	at java.awt.Container.dispatchEventImpl(Container.java:2024)
	at java.awt.Component.dispatchEvent(Component.java:3819)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4212)
	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3901)
	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3822)
	at java.awt.Container.dispatchEventImpl(Container.java:2010)
	at java.awt.Window.dispatchEventImpl(Window.java:1791)
	at java.awt.Component.dispatchEvent(Component.java:3819)
[catch] at java.awt.EventQueue.dispatchEvent(EventQueue.java:463)
	at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)