[news.eclipse.webtools] jsp/html editor problems ModelHandlerForJSP

[frank.monden@xxxxxxxxxxxxxxxxxxxx (Frank)]

I have difficults using the jsp or html editor in eclips with
WTP installed. When creating/editing a jsp file I get na error:


java.lang.NoClassDefFoundError: 
org/eclipse/jst/jsp/core/internal/modelhandler/ModelHandlerForJSP
	at 
org.eclipse.jst.jsp.ui.internal.registry.AdapterFactoryProviderForJSP.isFor(AdapterFactoryProviderForJSP.java:68)
	at 
org.eclipse.wst.sse.ui.internal.editor.EditorModelUtil.addFactoriesTo(EditorModelUtil.java:63)
	at 
org.eclipse.wst.sse.ui.StructuredTextEditor.doSetInput(StructuredTextEditor.java:2116)
	at 
org.eclipse.ui.texteditor.AbstractTextEditor$19.run(AbstractTextEditor.java:2994)
	at 
org.eclipse.jface.operation.ModalContext.runInCurrentThread(ModalContext.java:369)
	at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:313)
	at 
org.eclipse.jface.window.ApplicationWindow$1.run(ApplicationWindow.java:758)
	at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:67)
	at 
org.eclipse.jface.window.ApplicationWindow.run(ApplicationWindow.java:755)
	at org.eclipse.ui.internal.WorkbenchWindow.run(WorkbenchWindow.java:2451)
	at 
org.eclipse.ui.texteditor.AbstractTextEditor.internalInit(AbstractTextEditor.java:3012)
	at 
org.eclipse.ui.texteditor.AbstractTextEditor.init(AbstractTextEditor.java:3039)
	at 
org.eclipse.wst.sse.ui.StructuredTextEditor.init(StructuredTextEditor.java:2617)
	at 
org.eclipse.ui.internal.EditorManager.createSite(EditorManager.java:794)
	at 
org.eclipse.ui.internal.EditorReference.createPartHelper(EditorReference.java:643)
	at 
org.eclipse.ui.internal.EditorReference.createPart(EditorReference.java:426)
	at 
org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:592)
	at 
org.eclipse.ui.internal.EditorReference.getEditor(EditorReference.java:263)
	at 
org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched(WorkbenchPage.java:2739)
	at 
org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:2651)
	at 
org.eclipse.ui.internal.WorkbenchPage.access$13(WorkbenchPage.java:2643)
	at org.eclipse.ui.internal.WorkbenchPage$10.run(WorkbenchPage.java:2595)
	at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:67)
	at 
org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2590)
	at 
org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2574)
	at org.eclipse.ui.actions.OpenWithMenu.openEditor(OpenWithMenu.java:340)
	at org.eclipse.ui.actions.OpenWithMenu.access$0(OpenWithMenu.java:328)
	at 
org.eclipse.ui.actions.OpenWithMenu$3.handleEvent(OpenWithMenu.java:226)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:938)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3682)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3293)
	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2389)
	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2353)
	at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2219)
	at org.eclipse.ui.internal.Workbench$4.run(Workbench.java:466)
	at 
org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:289)
	at 
org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:461)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
	at 
org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:106)
	at 
org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:169)
	at 
org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:106)
	at 
org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:76)
	at 
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:363)
	at 
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:176)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:508)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:447)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1173)