java.lang.NullPointerException
        at org.netbeans.modules.web.webmodule.WebModuleExtenderBridge.update(WebModuleExtenderBridge.java:141)
        at org.netbeans.modules.web.project.ui.customizer.CustomizerFrameworks$ExtenderListener.<init>(CustomizerFrameworks.java:310)
        at org.netbeans.modules.web.project.ui.customizer.CustomizerFrameworks.initFrameworksList(CustomizerFrameworks.java:108)
        at org.netbeans.modules.web.project.ui.customizer.CustomizerFrameworks.<init>(CustomizerFrameworks.java:89)
        at org.netbeans.modules.web.project.ui.customizer.WebCompositePanelProvider.createComponent(WebCompositePanelProvider.java:152)
        at org.netbeans.spi.project.ui.support.ProjectCustomizer$DelegateCategoryProvider.create(ProjectCustomizer.java:417)
        at org.netbeans.modules.project.uiapi.CustomizerPane.setCategory(CustomizerPane.java:240)
        at org.netbeans.modules.project.uiapi.CustomizerPane.access$100(CustomizerPane.java:65)
        at org.netbeans.modules.project.uiapi.CustomizerPane$CategoryChangeListener.propertyChange(CustomizerPane.java:295)
        at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:339)
        at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:276)
        at org.netbeans.modules.project.uiapi.CategoryModel.firePropertyChange(CategoryModel.java:115)
        at org.netbeans.modules.project.uiapi.CategoryModel.setCurrentCategory(CategoryModel.java:89)
        at org.netbeans.modules.project.uiapi.CategoryView.propertyChange(CategoryView.java:177)
        at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:339)
        at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:276)
        at org.openide.explorer.ExplorerManager$2.run(ExplorerManager.java:836)
        at org.openide.util.Mutex.doEvent(Mutex.java:1203)
        at org.openide.util.Mutex.readAccess(Mutex.java:309)
        at org.openide.explorer.ExplorerManager.fireInAWT(ExplorerManager.java:833)
        at org.openide.explorer.ExplorerManager.access$600(ExplorerManager.java:89)
        at org.openide.explorer.ExplorerManager$1AtomicSetSelectedNodes.fire(ExplorerManager.java:281)
        at org.openide.explorer.ExplorerManager.setSelectedNodes(ExplorerManager.java:294)
        at org.openide.explorer.ExplorerManager$1SetExploredContextAndSelection.run(ExplorerManager.java:380)
        at org.openide.util.Mutex.readAccess(Mutex.java:318)
        at org.openide.explorer.ExplorerManager.setExploredContextAndSelection(ExplorerManager.java:405)
        at org.openide.explorer.view.BeanTreeView.selectionChanged(BeanTreeView.java:155)
        at org.openide.explorer.view.TreeView.callSelectionChanged(TreeView.java:752)
        at org.openide.explorer.view.TreeView$TreePropertyListener.run(TreeView.java:1320)
        at org.openide.util.Mutex.postRequest(Mutex.java:1162)
        at org.openide.util.Mutex.postReadRequest(Mutex.java:495)
        at org.openide.explorer.view.TreeView$TreePropertyListener.valueChanged(TreeView.java:1291)
        at javax.swing.tree.DefaultTreeSelectionModel.fireValueChanged(DefaultTreeSelectionModel.java:629)
        at javax.swing.tree.DefaultTreeSelectionModel.notifyPathChange(DefaultTreeSelectionModel.java:1078)
        at javax.swing.tree.DefaultTreeSelectionModel.setSelectionPaths(DefaultTreeSelectionModel.java:287)
        at javax.swing.tree.DefaultTreeSelectionModel.setSelectionPath(DefaultTreeSelectionModel.java:170)
        at javax.swing.JTree.setSelectionPath(JTree.java:1598)
        at javax.swing.plaf.basic.BasicTreeUI.selectPathForEvent(BasicTreeUI.java:2316)
        at javax.swing.plaf.basic.BasicTreeUI$Handler.handleSelection(BasicTreeUI.java:3517)
        at javax.swing.plaf.basic.BasicTreeUI$Handler.mousePressedDND(BasicTreeUI.java:3494)
        at javax.swing.plaf.basic.BasicTreeUI$Handler.mousePressed(BasicTreeUI.java:3453)
        at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:262)
        at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:262)
        at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:262)
        at java.awt.Component.processMouseEvent(Component.java:6035)
        at javax.swing.JComponent.processMouseEvent(JComponent.java:3265)
        at java.awt.Component.processEvent(Component.java:5803)
        at java.awt.Container.processEvent(Container.java:2058)
        at java.awt.Component.dispatchEventImpl(Component.java:4410)
        at java.awt.Container.dispatchEventImpl(Container.java:2116)
        at java.awt.Component.dispatchEvent(Component.java:4240)
        at java.awt.LightweightDispatcher.retargetMouseEvent(LightweightDispatcher.java:4322)
        at java.awt.LightweightDispatcher.processMouseEvent(LightweightDispatcher.java:3983)
        at java.awt.LightweightDispatcher.dispatchEvent(LightweightDispatcher.java:3916)
        at java.awt.Container.dispatchEventImpl(Container.java:2102)
        at java.awt.Window.dispatchEventImpl(Window.java:2429)
        at java.awt.Component.dispatchEvent(Component.java:4240)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
        at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273)
        at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:121)