WebPageEditor broken since 2023.06

[StefanLindner]

I am using a fresh download of "Eclipse IDE for Enterprise Java and Web Developers" Windows 10 with Adoptium JDK 17

I try to open a html file with right mouse klick and chose "Web Page Editor". This results in a popup that diesplays "Unsupported Content Type".

After "OK" a Display-Tab opens with the following error message:

java.lang.NullPointerException: Cannot invoke "org.eclipse.wst.sse.core.internal.provisional.IStructuredModel.getAdapter(java.lang.Class)" because "this.fStructuredModel" is null
    at org.eclipse.wst.sse.ui.StructuredTextEditor.createModelDependentFields(StructuredTextEditor.java:1568)
    at org.eclipse.wst.sse.ui.StructuredTextEditor.update(StructuredTextEditor.java:3290)
    at org.eclipse.jst.pagedesigner.editors.HTMLEditor.sash_createAndAddDesignSourcePage(HTMLEditor.java:299)
    at org.eclipse.jst.pagedesigner.editors.HTMLEditor.createPages(HTMLEditor.java:460)
    at org.eclipse.ui.part.MultiPageEditorPart.createPartControl(MultiPageEditorPart.java:333)
    at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.createPartControl(CompatibilityPart.java:158)
    at org.eclipse.ui.internal.e4.compatibility.CompatibilityEditor.createPartControl(CompatibilityEditor.java:96)
    at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.create(CompatibilityPart.java:365)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:568)
    at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:58)
    at org.eclipse.e4.core.internal.di.InjectorImpl.processAnnotated(InjectorImpl.java:971)
    at org.eclipse.e4.core.internal.di.InjectorImpl.processAnnotated(InjectorImpl.java:936)
    at org.eclipse.e4.core.internal.di.InjectorImpl.internalInject(InjectorImpl.java:142)
    at org.eclipse.e4.core.internal.di.InjectorImpl.internalMake(InjectorImpl.java:386)
    at org.eclipse.e4.core.internal.di.InjectorImpl.make(InjectorImpl.java:313)
    at org.eclipse.e4.core.contexts.ContextInjectionFactory.make(ContextInjectionFactory.java:202)
    at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.createFromBundle(ReflectionContributionFactory.java:91)
    at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.doCreate(ReflectionContributionFactory.java:60)
    at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.create(ReflectionContributionFactory.java:42)
    at org.eclipse.e4.ui.workbench.renderers.swt.ContributedPartRenderer.createWidget(ContributedPartRenderer.java:132)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createWidget(PartRenderingEngine.java:995)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:659)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:763)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$2.run(PartRenderingEngine.java:728)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createGui(PartRenderingEngine.java:712)
    at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.lambda$0(PartServiceImpl.java:105)
    at org.eclipse.e4.ui.services.internal.events.UIEventHandler.lambda$0(UIEventHandler.java:38)
    at org.eclipse.swt.widgets.Synchronizer.syncExec(Synchronizer.java:183)
    at org.eclipse.ui.internal.UISynchronizer.syncExec(UISynchronizer.java:133)
    at org.eclipse.swt.widgets.Display.syncExec(Display.java:4803)
    at org.eclipse.e4.ui.workbench.swt.DisplayUISynchronize.syncExec(DisplayUISynchronize.java:34)
    at org.eclipse.e4.ui.services.internal.events.UIEventHandler.handleEvent(UIEventHandler.java:38)
    at org.eclipse.equinox.internal.event.EventHandlerWrapper.handleEvent(EventHandlerWrapper.java:205)
    at org.eclipse.equinox.internal.event.EventHandlerTracker.dispatchEvent(EventHandlerTracker.java:203)
    at org.eclipse.equinox.internal.event.EventHandlerTracker.dispatchEvent(EventHandlerTracker.java:1)
    at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:234)
    at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:151)
    at org.eclipse.equinox.internal.event.EventAdminImpl.dispatchEvent(EventAdminImpl.java:133)
    at org.eclipse.equinox.internal.event.EventAdminImpl.sendEvent(EventAdminImpl.java:75)
    at org.eclipse.equinox.internal.event.EventComponent.sendEvent(EventComponent.java:44)
    at org.eclipse.e4.ui.services.internal.events.EventBroker.send(EventBroker.java:55)
    at org.eclipse.e4.ui.internal.workbench.UIEventPublisher.notifyChanged(UIEventPublisher.java:63)
    at org.eclipse.emf.common.notify.impl.BasicNotifierImpl.eNotify(BasicNotifierImpl.java:424)
    at org.eclipse.e4.ui.model.application.ui.impl.ElementContainerImpl.setSelectedElementGen(ElementContainerImpl.java:170)
    at org.eclipse.e4.ui.model.application.ui.impl.ElementContainerImpl.setSelectedElement(ElementContainerImpl.java:188)
    at org.eclipse.e4.ui.internal.workbench.ModelServiceImpl.showElementInWindow(ModelServiceImpl.java:661)
    at org.eclipse.e4.ui.internal.workbench.ModelServiceImpl.bringToTop(ModelServiceImpl.java:625)
    at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.delegateBringToTop(PartServiceImpl.java:796)
    at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.bringToTop(PartServiceImpl.java:401)
    at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.showPart(PartServiceImpl.java:1270)
    at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:3233)
    at org.eclipse.ui.internal.WorkbenchPage.lambda$11(WorkbenchPage.java:3123)
    at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:67)
    at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:3121)
    at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:3091)
    at org.eclipse.ui.actions.OpenWithMenu.openEditor(OpenWithMenu.java:325)
    at org.eclipse.ui.actions.OpenWithMenu.lambda$0(OpenWithMenu.java:182)
    at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89)
    at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4274)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1066)
    at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4072)
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3660)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1155)
    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:342)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1046)
    at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:155)
    at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:645)
    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:342)
    at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:552)
    at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:171)
    at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:152)
    at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203)
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:136)
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:402)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:568)
    at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:651)
    at org.eclipse.equinox.launcher.Main.basicRun(Main.java:588)
    at org.eclipse.equinox.launcher.Main.run(Main.java:1459)

Opening HTML-files with the Web Page Editor works in 2023.03 It stopped working in 2023.06

[jonahgraham]

Thanks @StefanLindner for the bug report.

I can reproduce this with this additional error messages in the log which looks relevant:

!ENTRY org.eclipse.wst.sse.ui 2 2 2023-09-22 12:18:10.518
!MESSAGE StructuredTextEditor being used without StructuredDocument

!ENTRY org.eclipse.wst.sse.ui 2 2 2023-09-22 12:18:10.518
!MESSAGE          Input Name: hello.html

!ENTRY org.eclipse.wst.sse.ui 2 2 2023-09-22 12:18:10.519
!MESSAGE         Unexpected IDocumentProvider implementation: org.eclipse.ui.editors.text.TextFileDocumentProvider

!ENTRY org.eclipse.wst.sse.ui 2 2 2023-09-22 12:18:10.520
!MESSAGE         Unexpected IDocument implementation: org.eclipse.core.internal.filebuffers.SynchronizableDocument

The problem appears to be a conflict between WWD and the Web Page Editor as if I uninstall WWD then the editor works.

So as a workaround (that works if you don't need WWD) is:

• Help -> About
• Installation Details button
• Select Wild Web Developer and press Uninstall like in this screenshot:

[jonahgraham]

@nitind I assume there have been conflicts with WWD before - any idea where the best place for this bug to land is?

[StefanLindner]

Unfortunately we can't rely on wild web developer because we use a combination of Java in the backend and TypeScript/Angular in the frontend. I think that in a preconfigured simultaneous release all components should harmonize with each other. Are we the first and only ones to run into this bug?

[nitind]

Well, no, see https://bugs.eclipse.org/582302 . A proper fix is going to be very time consuming to implement.

[zulus]

This is different error. Content-Type prioritization, everything depend to which plugin will be earlier registered.

​

​I made some tests, and if WWD will change ContentType priority to "low" (or WTP to high), both editors will work, because WWD can work on top of StructuredDocument ;)

​

​--

​Dawid Pakuła

​

On Sep 22 2023, at 9:40 PM, Nitin Dahyabhai @.***> wrote:

Well, no, see https://bugs.eclipse.org/582302 . I proper fix is going to be very time consuming to implement.

—

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[zulus]

https://github.com/eclipse-wildwebdeveloper/wildwebdeveloper/pull/1341

[zulus]

To be compatible with WTP SSE, we reduced content types priority (PR from above). You can test with recent WWD snapshot

[StefanLindner]

Now everything works fine. Thank you so much!