我在Win 10上安装了面向Enterprise Java Developers 2019-12（4.14.0）的Eclipse IDE，并在市场上安装了JBoss Tools 4.14.0 Final。今天早上，我收到了eclipse中的更新通知，并且在没有正确阅读其内容的情况下接受了它。我原来是2020.03版（4.15.0）的主要更新。更新后，乍一看似乎一切正常，但是当我尝试打开xhtml文件时没有打开？在eclipse日志文件中，我找到了以下内容：
!ENTRY org.eclipse.equinox.event 4 0 2020-04-16 17:34:19.681 !MESSAGE Exception while dispatching event org.osgi.service.event.Event [topic=org/eclipse/e4/ui/model/ui/ElementContainer/selectedElement/SET] {ChangedElement=org.eclipse.e4.primaryDataStack=org.eclipse.e4.ui.model.application.ui.basic.impl.PartStackImpl@7a13ad55 (tags: [org.eclipse.e4.primaryDataStack, EditorStack], contributorURI: null) (widget: CTabFolder {}, renderer: org.eclipse.e4.ui.workbench.renderers.swt.StackRenderer@3f1b4a14, toBeRendered: true, onTop: false, visible: true, containerData: null, accessibilityPhrase: null), Widget=CTabFolder {}, org.eclipse.e4.data={ChangedElement=org.eclipse.e4.primaryDataStack=org.eclipse.e4.ui.model.application.ui.basic.impl.PartStackImpl@7a13ad55 (tags: [org.eclipse.e4.primaryDataStack, EditorStack], contributorURI: null) (widget: CTabFolder {}, renderer: org.eclipse.e4.ui.workbench.renderers.swt.StackRenderer@3f1b4a14, toBeRendered: true, onTop: false, visible: true, containerData: null, accessibilityPhrase: null), AttName=selectedElement, EventType=SET, Widget=CTabFolder {}, NewValue=org.eclipse.e4.ui.compatibility.editor=org.eclipse.e4.ui.model.application.ui.basic.impl.PartImpl@7e2e1021 (tags: [Editor, removeOnHide, org.jboss.tools.jst.jsp.jspeditor.HTMLTextEditor], contributorURI: null) (widget: ContributedPartRenderer$1 {}, renderer: org.eclipse.e4.ui.workbench.renderers.swt.ContributedPartRenderer@3d5a6c07, toBeRendered: true, onTop: false, visible: true, containerData: null, accessibilityPhrase: null) (contributionURI: bundleclass://org.eclipse.ui.workbench/org.eclipse.ui.internal.e4.compatibility.CompatibilityEditor, object: null, context: PartImpl (org.eclipse.e4.ui.compatibility.editor) removeOnHide org.jboss.tools.jst.jsp.jspeditor.HTMLTextEditorContext, variables: [], label: null, iconURI: null, tooltip: null, dirty: false, closeable: true, description: null)}, AttName=selectedElement, NewValue=org.eclipse.e4.ui.compatibility.editor=org.eclipse.e4.ui.model.application.ui.basic.impl.PartImpl@7e2e1021 (tags: [Editor, removeOnHide, org.jboss.tools.jst.jsp.jspeditor.HTMLTextEditor], contributorURI: null) (widget: ContributedPartRenderer$1 {}, renderer: org.eclipse.e4.ui.workbench.renderers.swt.ContributedPartRenderer@3d5a6c07, toBeRendered: true, onTop: false, visible: true, containerData: null, accessibilityPhrase: null) (contributionURI: bundleclass://org.eclipse.ui.workbench/org.eclipse.ui.internal.e4.compatibility.CompatibilityEditor, object: null, context: PartImpl (org.eclipse.e4.ui.compatibility.editor) removeOnHide org.jboss.tools.jst.jsp.jspeditor.HTMLTextEditorContext, variables: [], label: null, iconURI: null, tooltip: null, dirty: false, closeable: true, description: null), EventType=SET} to handler org.eclipse.e4.ui.services.internal.events.UIEventHandler@535fedbc !STACK 0 org.eclipse.swt.SWTError: Cannot initialize Drop at org.eclipse.swt.dnd.DND.error(DND.java:281) at org.eclipse.swt.dnd.DND.error(DND.java:241) at org.eclipse.swt.dnd.DropTarget.<init>(DropTarget.java:138) at org.jboss.tools.jst.web.ui.internal.editor.jspeditor.JSPTextEditor.createDrop(JSPTextEditor.java:945) at org.jboss.tools.jst.web.ui.internal.editor.jspeditor.JSPTextEditor.createPartControl(JSPTextEditor.java:421) at org.jboss.tools.jst.web.ui.internal.editor.jspeditor.JSPMultiPageEditor$3.createPartControl(JSPMultiPageEditor.java:572) at org.jboss.tools.vpe.preview.editor.VpvEditorPart.createPartControl(VpvEditorPart.java:411) at org.jboss.tools.jst.web.ui.internal.editor.jspeditor.JSPMultiPageEditorPart.addPage(JSPMultiPageEditorPart.java:93) at org.jboss.tools.jst.web.ui.internal.editor.jspeditor.JSPMultiPageEditor.createPagesForVPE(JSPMultiPageEditor.java:592) at org.jboss.tools.jst.web.ui.internal.editor.jspeditor.JSPMultiPageEditor.createPages(JSPMultiPageEditor.java:506) at org.eclipse.ui.part.MultiPageEditorPart.createPartControl(MultiPageEditorPart.java:333) at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.createPartControl(CompatibilityPart.java:154) at org.eclipse.ui.internal.e4.compatibility.CompatibilityEditor.createPartControl(CompatibilityEditor.java:96) at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.create(CompatibilityPart.java:361) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:58) at org.eclipse.e4.core.internal.di.InjectorImpl.processAnnotated(InjectorImpl.java:1002) at org.eclipse.e4.core.internal.di.InjectorImpl.processAnnotated(InjectorImpl.java:967) at org.eclipse.e4.core.internal.di.InjectorImpl.internalInject(InjectorImpl.java:139) at org.eclipse.e4.core.internal.di.InjectorImpl.internalMake(InjectorImpl.java:408) at org.eclipse.e4.core.internal.di.InjectorImpl.make(InjectorImpl.java:331) 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:1002) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:662) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:768) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$0(PartRenderingEngine.java:739) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$2.run(PartRenderingEngine.java:733) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createGui(PartRenderingEngine.java:717) at org.eclipse.e4.ui.workbench.renderers.swt.StackRenderer.showTab(StackRenderer.java:1297) at org.eclipse.e4.ui.workbench.renderers.swt.LazyStackRenderer.lambda$0(LazyStackRenderer.java:75) at org.eclipse.e4.ui.services.internal.events.UIEventHandler.lambda$0(UIEventHandler.java:38) at org.eclipse.swt.widgets.Synchronizer.syncExec(Synchronizer.java:236) at org.eclipse.ui.internal.UISynchronizer.syncExec(UISynchronizer.java:133) at org.eclipse.swt.widgets.Display.syncExec(Display.java:4561) at org.eclipse.e4.ui.internal.workbench.swt.E4Application$1.syncExec(E4Application.java:219) 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:132) 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:790) at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.bringToTop(PartServiceImpl.java:404) at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.showPart(PartServiceImpl.java:1266) at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:3195) at org.eclipse.ui.internal.WorkbenchPage.lambda$9(WorkbenchPage.java:3100) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:72) at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:3098) at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:3068) at org.eclipse.ui.actions.OpenWithMenu.openEditor(OpenWithMenu.java:326) at org.eclipse.ui.actions.OpenWithMenu.lambda$0(OpenWithMenu.java:183) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89) at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4105) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1037) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3922) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3524) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1160) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1049) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:155) at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:658) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:557) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:154) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:150) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:137) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:107) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:401) 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:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:657) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:594) at org.eclipse.equinox.launcher.Main.run(Main.java:1447)
经过一些谷歌搜索后，我得出的结论是它与JBoss工具xhtml编辑器有关，我尝试使用html编辑器打开xhtml文件，并且该文件可以正常工作。我还发现所有其他JBoss工具编辑器均无法与Eclipse 2020-03一起使用。解决方法是将文件关联更改为非JBoss工具编辑器。但是我对这种解决方法不满意，有人知道如何解决此问题吗？
似乎已在2020-03年之后的下一个版本中修复：https://issues.redhat.com/browse/JBIDE-27138。在发布之前，您必须停留在2019-12上。