java.lang.IllegalArgumentException
	at org.netbeans.modules.languages.LanguagesManager.getLanguage(LanguagesManager.java:144)
	at org.netbeans.modules.languages.ParserManagerImpl.<init>(ParserManagerImpl.java:114)
	at org.netbeans.api.languages.ParserManager.get(ParserManager.java:85)
	at org.netbeans.modules.web.core.syntax.JspColoringUpdater.<init>(JspColoringUpdater.java:87)
	at org.netbeans.modules.web.core.syntax.JspColoringUpdater.init(JspColoringUpdater.java:77)
	at org.netbeans.modules.web.core.syntax.JSPKit.initDocument(JSPKit.java:315)
	at org.netbeans.editor.BaseDocument.<init>(BaseDocument.java:329)
	at org.netbeans.editor.GuardedDocument.<init>(GuardedDocument.java:122)
	at org.netbeans.editor.GuardedDocument.<init>(GuardedDocument.java:112)
	at org.netbeans.modules.editor.NbEditorDocument.<init>(NbEditorDocument.java:108)
	at org.netbeans.modules.languages.dataobject.LanguagesEditorKit$LanguagesDocument.<init>(LanguagesEditorKit.java:295)
	at org.netbeans.modules.languages.dataobject.LanguagesEditorKit.createDefaultDocument(LanguagesEditorKit.java:242)
	at org.openide.text.CloneableEditorSupport.createStyledDocument(CloneableEditorSupport.java:1591)
	at org.openide.text.DataEditorSupport.createStyledDocument(DataEditorSupport.java:304)
	at org.openide.text.CloneableEditorSupport.prepareDocument(CloneableEditorSupport.java:545)
	at org.openide.text.CloneableEditorSupport.openDocumentImpl(CloneableEditorSupport.java:710)
	at org.openide.text.CloneableEditorSupport.openDocumentCheckIOE(CloneableEditorSupport.java:692)
	at org.openide.text.CloneableEditorSupport.openDocument(CloneableEditorSupport.java:687)
	at org.netbeans.modules.visualweb.insync.Util.retrieveDocument(Util.java:187)
	at org.netbeans.modules.visualweb.insync.SourceUnit.flush(SourceUnit.java:650)
	at org.netbeans.modules.visualweb.insync.SourceUnit.writeUnlock(SourceUnit.java:467)
	at org.netbeans.modules.visualweb.insync.faces.FacesPageUnit.writeUnlock(FacesPageUnit.java:184)
	at org.netbeans.modules.visualweb.insync.live.LiveUnit.writeUnlock(LiveUnit.java:493)
	at org.netbeans.modules.visualweb.insync.live.LiveUnitWrapper.writeUnlock(LiveUnitWrapper.java:169)
	at org.netbeans.modules.visualweb.insync.models.FacesModel.writeUnlock(FacesModel.java:1015)
	at org.netbeans.modules.visualweb.insync.live.BeansDesignProperty.setBeanProperty(BeansDesignProperty.java:361)
	at org.netbeans.modules.visualweb.insync.live.BeansDesignProperty.setValue(BeansDesignProperty.java:396)
	at org.netbeans.modules.visualweb.insync.live.FacesDesignProperty.setValue(FacesDesignProperty.java:237)
	at org.netbeans.modules.visualweb.insync.live.DesignBeanNode$PropLink.setValue(DesignBeanNode.java:1344)
	at org.openide.explorer.propertysheet.NodePropertyModel.setValue(NodePropertyModel.java:110)
	at org.openide.explorer.propertysheet.PropUtils.noDlgUpdateProp(PropUtils.java:561)
	at org.openide.explorer.propertysheet.PropUtils.updateProp(PropUtils.java:522)
	at org.openide.explorer.propertysheet.PropUtils.updateProp(PropUtils.java:634)
	at org.openide.explorer.propertysheet.SheetCellEditor.stopCellEditing(SheetCellEditor.java:374)
	at org.openide.explorer.propertysheet.SheetCellEditor.actionPerformed(SheetCellEditor.java:241)
	at javax.swing.JTextField.fireActionPerformed(JTextField.java:492)
	at javax.swing.JTextField.postActionEvent(JTextField.java:705)
	at javax.swing.JTextField$NotifyAction.actionPerformed(JTextField.java:820)
	at javax.swing.SwingUtilities.notifyAction(SwingUtilities.java:1636)
	at javax.swing.JComponent.processKeyBinding(JComponent.java:2849)
	at javax.swing.JComponent.processKeyBindings(JComponent.java:2884)
	at javax.swing.JComponent.processKeyEvent(JComponent.java:2812)
	at java.awt.Component.processEvent(Component.java:5815)
	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.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1848)
	at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:697)
	at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:962)
	at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:834)
	at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:661)
	at java.awt.Component.dispatchEventImpl(Component.java:4282)
	at java.awt.Container.dispatchEventImpl(Container.java:2116)
	at java.awt.Window.dispatchEventImpl(Window.java:2429)
	at java.awt.Component.dispatchEvent(Component.java:4240)
[catch] 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)