java.lang.NullPointerException
   at org.netbeans.modules.xml.schema.model.impl.resolver.ResolveSession.checkAllDependingModelsLoaded(ResolveSession.java:250)
   at org.netbeans.modules.xml.schema.model.impl.resolver.ResolveSession.getInclusionGraph(ResolveSession.java:165)
   at org.netbeans.modules.xml.schema.model.impl.resolver.IncludeResolver.getMegaIncludedModels(IncludeResolver.java:203)
   at org.netbeans.modules.xml.schema.model.impl.resolver.IncludeResolver.resolveUpwards(IncludeResolver.java:140)
   at org.netbeans.modules.xml.schema.model.impl.resolver.ImportResolver.findInIncludedImportsUpwards(ImportResolver.java:219)
   at org.netbeans.modules.xml.schema.model.impl.resolver.ChamelionResolver.resolve(ChamelionResolver.java:112)
   at org.netbeans.modules.xml.schema.model.impl.SchemaModelImpl.resolveImpl(SchemaModelImpl.java:191)
   at org.netbeans.modules.xml.schema.model.impl.SchemaModelImpl.resolve(SchemaModelImpl.java:170)
   at org.netbeans.modules.xml.wsdl.model.extensions.xsd.impl.SchemaReferenceImpl.get(SchemaReferenceImpl.java:95)
   at org.netbeans.modules.xml.wsdl.model.extensions.xsd.impl.SchemaReferenceImpl.get(SchemaReferenceImpl.java:66)
   at org.netbeans.modules.xml.wsdl.ui.view.treeeditor.PartNode.getHtmlDisplayName(PartNode.java:364)
   at org.openide.explorer.view.VisualizerNode.getHtmlDisplayName(VisualizerNode.java:547)
   at org.openide.explorer.view.NodeRenderer.getTreeCellRendererComponent(NodeRenderer.java:130)
   at javax.swing.plaf.basic.BasicTreeUI$NodeDimensionsHandler.getNodeDimensions(BasicTreeUI.java:2712)
   at javax.swing.tree.AbstractLayoutCache.getNodeDimensions(AbstractLayoutCache.java:475)
   at javax.swing.tree.FixedHeightLayoutCache.getBounds(FixedHeightLayoutCache.java:535)
   at javax.swing.tree.FixedHeightLayoutCache.getBounds(FixedHeightLayoutCache.java:181)
   at javax.swing.plaf.basic.BasicTreeUI.getPathBounds(BasicTreeUI.java:510)
   at javax.swing.plaf.basic.BasicTreeUI.getPathBounds(BasicTreeUI.java:503)
   at javax.swing.JTree.getPathBounds(JTree.java:2063)
   at org.openide.explorer.view.TreeView$TreePropertyListener$1Request.run(TreeView.java:1307)
   at org.openide.util.Mutex.readAccess(Mutex.java:365)
   at org.openide.util.Mutex$1R.run(Mutex.java:1307)
   at org.openide.nodes.Children$ProjectManagerDeadlockDetector.execute(Children.java:1835)
   at org.openide.util.Mutex.doWrapperAccess(Mutex.java:1326)
   at org.openide.util.Mutex.readAccess(Mutex.java:354)
   at org.openide.explorer.view.TreeView$TreePropertyListener$1Request.run(TreeView.java:1274)
   at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:597)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:137)
   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)