java.lang.NullPointerException
        at org.netbeans.modules.visualweb.designer.jsf.ui.RenderErrorPanelImpl.updateErrors(RenderErrorPanelImpl.java:141)
        at org.netbeans.modules.visualweb.designer.jsf.ui.JsfTopComponent.showErrors(JsfTopComponent.java:549)
        at org.netbeans.modules.visualweb.designer.jsf.ui.JsfTopComponent.updateErrors(JsfTopComponent.java:531)
        at org.netbeans.modules.visualweb.designer.jsf.ui.JsfMultiViewElement.updateErrors(JsfMultiViewElement.java:189)
        at org.netbeans.modules.visualweb.designer.jsf.JsfForm.notifyViewsUpdateErrors(JsfForm.java:1503)
        at org.netbeans.modules.visualweb.designer.jsf.JsfForm.doUpdateComponentForErrors(JsfForm.java:995)
        at org.netbeans.modules.visualweb.designer.jsf.JsfForm.updateComponentForErrors(JsfForm.java:978)
        at org.netbeans.modules.visualweb.designer.jsf.JsfForm.updateErrorsInComponent(JsfForm.java:973)
        at org.netbeans.modules.visualweb.designer.jsf.JsfForm.getHtmlBody(JsfForm.java:1759)
        at org.netbeans.modules.visualweb.designer.jsf.JsfForm.getHtmlBody(JsfForm.java:1745)
        at org.netbeans.modules.visualweb.designer.jsf.DomProviderImpl.getHtmlBody(DomProviderImpl.java:119)
        at org.netbeans.modules.visualweb.designer.WebForm.getHtmlBody(WebForm.java:937)
        at org.netbeans.modules.visualweb.designer.DesignerPaneUI.resetPageBox(DesignerPaneUI.java:623)
        at org.netbeans.modules.visualweb.designer.WebForm.setDefaultFontSize(WebForm.java:3270)
        at org.netbeans.modules.visualweb.designer.jsf.ui.JsfTopComponent.initDesignerPreferences(JsfTopComponent.java:310)
        at org.netbeans.modules.visualweb.designer.jsf.ui.JsfTopComponent.<init>(JsfTopComponent.java:268)
        at org.netbeans.modules.visualweb.designer.jsf.ui.JsfMultiViewElement.<init>(JsfMultiViewElement.java:87)
        at org.netbeans.modules.visualweb.designer.jsf.JsfForm.createMultiViewElement(JsfForm.java:494)
        at org.netbeans.modules.visualweb.designer.jsf.DesignerJsfServiceImpl.createDesignerMultiViewElement(DesignerJsfServiceImpl.java:88)
        at org.netbeans.modules.visualweb.project.jsfloader.JsfJavaEditorSupport$DesignerDesc.createElement(JsfJavaEditorSupport.java:561)
        at org.netbeans.core.multiview.MultiViewModel.getElementForDescription(MultiViewModel.java:206)
        at org.netbeans.core.multiview.MultiViewModel.getActiveElement(MultiViewModel.java:127)
        at org.netbeans.core.multiview.MultiViewModel.getActiveElement(MultiViewModel.java:123)
        at org.netbeans.core.multiview.MultiViewPeer.requestFocusInWindow(MultiViewPeer.java:242)
        at org.netbeans.core.multiview.MultiViewCloneableTopComponent.requestFocusInWindow(MultiViewCloneableTopComponent.java:146)
        at org.netbeans.core.windows.view.ui.AbstractModeContainer.focusSelectedTopComponent(AbstractModeContainer.java:166)
        at org.netbeans.core.windows.view.ModeView.focusSelectedTopComponent(ModeView.java:161)
        at org.netbeans.core.windows.view.ViewHierarchy.activateModeView(ViewHierarchy.java:395)
        at org.netbeans.core.windows.view.ViewHierarchy.activateMode(ViewHierarchy.java:389)
        at org.netbeans.core.windows.view.DefaultView.changeGUI(DefaultView.java:416)
        at org.netbeans.core.windows.ViewRequestor.dispatchRequest(ViewRequestor.java:269)
        at org.netbeans.core.windows.ViewRequestor.processRequest(ViewRequestor.java:245)
        at org.netbeans.core.windows.ViewRequestor.postRequest(ViewRequestor.java:183)
        at org.netbeans.core.windows.ViewRequestor.scheduleRequest(ViewRequestor.java:123)
        at org.netbeans.core.windows.Central.activateModeTopComponent(Central.java:1714)
        at org.netbeans.core.windows.WindowManagerImpl.topComponentRequestActive(WindowManagerImpl.java:1144)
        at org.openide.windows.TopComponent.requestActive(TopComponent.java:709)
        at org.netbeans.modules.visualweb.project.jsfloader.JsfJavaEditorSupport.doOpenDesigner(JsfJavaEditorSupport.java:176)
        at org.netbeans.modules.visualweb.project.jsfloader.JsfJavaEditorSupport$1.run(JsfJavaEditorSupport.java:157)
        at org.openide.util.Mutex.doEvent(Mutex.java:1335)
        at org.openide.util.Mutex.writeAccess(Mutex.java:452)
        at org.netbeans.modules.visualweb.project.jsfloader.JsfJavaEditorSupport.openDesigner(JsfJavaEditorSupport.java:149)
        at org.netbeans.modules.visualweb.project.jsfloader.JsfJspEditorSupport.openDesigner(JsfJspEditorSupport.java:210)
        at org.netbeans.modules.visualweb.project.jsfloader.JsfJspDataObject$OpenEdit.open(JsfJspDataObject.java:257)
        at org.openide.actions.OpenAction.performAction(OpenAction.java:81)
        at org.openide.util.actions.NodeAction$DelegateAction$1.run(NodeAction.java:581)
        at org.netbeans.modules.openide.util.ActionsBridge.doPerformAction(ActionsBridge.java:77)
        at org.openide.util.actions.NodeAction$DelegateAction.actionPerformed(NodeAction.java:577)
        at org.openide.explorer.view.TreeView$PopupSupport.mouseClicked(TreeView.java:1439)
        at java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:253)
        at java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:252)
        at java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:252)
        at java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:252)
        at java.awt.Component.processMouseEvent(Component.java:6041)
        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:3995)
        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 org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:104)
        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)