java.lang.NullPointerException
	at org.netbeans.modules.web.project.ui.customizer.VisualClasspathSupport$ClasspathTableModel.getRowCount(VisualClasspathSupport.java:386)
	at javax.swing.JTable.getRowCount(JTable.java:1716)
	at javax.swing.JTable.columnSelectionChanged(JTable.java:3092)
	at javax.swing.table.DefaultTableColumnModel.fireColumnSelectionChanged(DefaultTableColumnModel.java:591)
	at javax.swing.table.DefaultTableColumnModel.valueChanged(DefaultTableColumnModel.java:696)
	at javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:187)
	at javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:167)
	at javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:214)
	at javax.swing.DefaultListSelectionModel.changeSelection(DefaultListSelectionModel.java:402)
	at javax.swing.DefaultListSelectionModel.changeSelection(DefaultListSelectionModel.java:411)
	at javax.swing.DefaultListSelectionModel.removeSelectionInterval(DefaultListSelectionModel.java:481)
	at javax.swing.DefaultListSelectionModel.clearSelection(DefaultListSelectionModel.java:416)
	at javax.swing.JTable.clearSelection(JTable.java:1261)
	at javax.swing.JTable.tableChanged(JTable.java:2848)
	at javax.swing.JTable.setModel(JTable.java:2721)
	at org.netbeans.modules.web.project.ui.customizer.VisualClasspathSupport.<init>(VisualClasspathSupport.java:69)
	at org.netbeans.modules.web.project.ui.customizer.CustomizerCompile.initValues(CustomizerCompile.java:46)
	at org.netbeans.modules.web.project.ui.customizer.WebCustomizer$CategoryView$ManagerChangeListener.propertyChange(WebCustomizer.java:193)
	at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:252)
	at org.openide.explorer.ExplorerManager.setSelectedNodes(ExplorerManager.java:219)
	at org.openide.explorer.ExplorerManager.setSelectedNodes1(ExplorerManager.java:355)
	at org.openide.explorer.ExplorerManager.setExploredContextAndSelection(ExplorerManager.java:305)
	at org.openide.explorer.view.BeanTreeView.selectionChanged(BeanTreeView.java:88)
	at org.openide.explorer.view.TreeView.callSelectionChanged(TreeView.java:626)
	at org.openide.explorer.view.TreeView$TreePropertyListener.run(TreeView.java:978)
	at org.openide.util.Mutex.postRequest(Mutex.java:866)
	at org.openide.util.Mutex.postReadRequest(Mutex.java:347)
	at org.openide.explorer.view.TreeView$TreePropertyListener.valueChanged(TreeView.java:948)
	at javax.swing.tree.DefaultTreeSelectionModel.fireValueChanged(DefaultTreeSelectionModel.java:629)
	at javax.swing.tree.DefaultTreeSelectionModel.notifyPathChange(DefaultTreeSelectionModel.java:1076)
	at javax.swing.tree.DefaultTreeSelectionModel.setSelectionPaths(DefaultTreeSelectionModel.java:287)
	at javax.swing.tree.DefaultTreeSelectionModel.setSelectionPath(DefaultTreeSelectionModel.java:170)
	at javax.swing.JTree.setSelectionPath(JTree.java:1168)
	at javax.swing.plaf.basic.BasicTreeUI.selectPathForEvent(BasicTreeUI.java:2192)
	at javax.swing.plaf.basic.BasicTreeUI$MouseHandler.handleSelection(BasicTreeUI.java:2840)
	at javax.swing.plaf.basic.BasicTreeUI$MouseHandler.mousePressed(BasicTreeUI.java:2801)
	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.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:221)
	at java.awt.Component.processMouseEvent(Component.java:5097)
	at java.awt.Component.processEvent(Component.java:4897)
	at java.awt.Container.processEvent(Container.java:1569)
	at java.awt.Component.dispatchEventImpl(Component.java:3615)
	at java.awt.Container.dispatchEventImpl(Container.java:1627)
	at java.awt.Component.dispatchEvent(Component.java:3477)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:3483)
	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3195)
	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3128)
	at java.awt.Container.dispatchEventImpl(Container.java:1613)
	at java.awt.Window.dispatchEventImpl(Window.java:1606)
	at java.awt.Component.dispatchEvent(Component.java:3477)
[catch] at java.awt.EventQueue.dispatchEvent(EventQueue.java:456)
	at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:201)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:151)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:145)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:137)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:100)