我最近切换到eclipse 2020-06进行JEE开发，结果是一个挫折。每当需要执行操作时，它就会冻结：进入类定义、脉冲ctrl和选择任何项目（类、方法…）。eclipse日志充满了这些错误：

java.util.concurrent.TimeoutException
    at java.util.concurrent.CompletableFuture.timedGet(Unknown Source)
    at java.util.concurrent.CompletableFuture.get(Unknown Source)
    at org.eclipse.lsp4e.LanguageServerWrapper.supportsWorkspaceFolderCapability(LanguageServerWrapper.java:544)
    at org.eclipse.lsp4e.LanguageServerWrapper.canOperate(LanguageServerWrapper.java:863)
    at org.eclipse.lsp4e.LanguageServiceAccessor.lambda$6(LanguageServiceAccessor.java:361)
    at java.util.stream.ReferencePipeline$2$1.accept(Unknown Source)
    at java.util.stream.ReferencePipeline$2$1.accept(Unknown Source)
    at java.util.HashMap$KeySpliterator.forEachRemaining(Unknown Source)
    at java.util.stream.AbstractPipeline.copyInto(Unknown Source)
    at java.util.stream.AbstractPipeline.wrapAndCopyInto(Unknown Source)
    at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(Unknown Source)
    at java.util.stream.AbstractPipeline.evaluate(Unknown Source)
    at java.util.stream.ReferencePipeline.collect(Unknown Source)
    at org.eclipse.lsp4e.LanguageServiceAccessor.getLSWrappers(LanguageServiceAccessor.java:362)
    at org.eclipse.lsp4e.LanguageServiceAccessor.getLanguageServers(LanguageServiceAccessor.java:588)
    at org.eclipse.lsp4e.operations.rename.LSPRenameHandler.isEnabled(LSPRenameHandler.java:128)
    at org.eclipse.ui.internal.handlers.HandlerProxy.isEnabled(HandlerProxy.java:300)
    at org.eclipse.ui.internal.handlers.E4HandlerProxy.canExecute(E4HandlerProxy.java:78)
    at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:58)
    at org.eclipse.e4.core.internal.di.InjectorImpl.invokeUsingClass(InjectorImpl.java:319)
    at org.eclipse.e4.core.internal.di.InjectorImpl.invoke(InjectorImpl.java:253)
    at org.eclipse.e4.core.contexts.ContextInjectionFactory.invoke(ContextInjectionFactory.java:173)
    at org.eclipse.e4.core.commands.internal.HandlerServiceHandler.isEnabled(HandlerServiceHandler.java:62)
    at org.eclipse.core.commands.Command.isEnabled(Command.java:832)
    at org.eclipse.ui.menus.CommandContributionItem.isEnabled(CommandContributionItem.java:917)
    at org.eclipse.ui.menus.CommandContributionItem.updateMenuItem(CommandContributionItem.java:531)
    at org.eclipse.ui.menus.CommandContributionItem.update(CommandContributionItem.java:484)
    at org.eclipse.ui.menus.CommandContributionItem.update(CommandContributionItem.java:477)
    at org.eclipse.ui.menus.CommandContributionItem.lambda$0(CommandContributionItem.java:935)
    at org.eclipse.jface.bindings.BindingManager.fireBindingManagerChanged(BindingManager.java:903)
    at org.eclipse.jface.bindings.BindingManager.setActiveBindings(BindingManager.java:2183)
    at org.eclipse.jface.bindings.BindingManager.recomputeBindings(BindingManager.java:1744)
    at org.eclipse.jface.bindings.BindingManager.contextManagerChanged(BindingManager.java:693)
    at org.eclipse.core.commands.contexts.ContextManager.fireContextManagerChanged(ContextManager.java:164)
    at org.eclipse.core.commands.contexts.ContextManager.setEventCaching(ContextManager.java:323)
    at org.eclipse.core.commands.contexts.ContextManager.deferUpdates(ContextManager.java:85)
    at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.activate(PartServiceImpl.java:781)
    at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.activate(PartServiceImpl.java:683)
    at org.eclipse.e4.ui.internal.workbench.swt.AbstractPartRenderer.activate(AbstractPartRenderer.java:97)
    at org.eclipse.e4.ui.workbench.renderers.swt.ContributedPartRenderer.lambda$0(ContributedPartRenderer.java:63)
    at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89)
    at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4213)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1037)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1061)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1046)
    at org.eclipse.swt.widgets.Shell.setActiveControl(Shell.java:1469)
    at org.eclipse.swt.widgets.Shell.WM_MOUSEACTIVATE(Shell.java:2315)
    at org.eclipse.swt.widgets.Control.windowProc(Control.java:4784)
    at org.eclipse.swt.widgets.Canvas.windowProc(Canvas.java:340)
    at org.eclipse.swt.widgets.Decorations.windowProc(Decorations.java:1480)
    at org.eclipse.swt.widgets.Shell.windowProc(Shell.java:2142)
    at org.eclipse.swt.widgets.Display.windowProc(Display.java:4931)
    at org.eclipse.swt.internal.win32.OS.DefWindowProc(Native Method)
    at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:91)
    at org.eclipse.swt.widgets.Control.windowProc(Control.java:4841)
    at org.eclipse.swt.widgets.Display.windowProc(Display.java:4931)
    at org.eclipse.swt.internal.win32.OS.DefWindowProc(Native Method)
    at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:91)
    at org.eclipse.swt.widgets.Control.windowProc(Control.java:4841)
    at org.eclipse.swt.widgets.Display.windowProc(Display.java:4931)
    at org.eclipse.swt.internal.win32.OS.DefWindowProc(Native Method)
    at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:91)
    at org.eclipse.swt.widgets.Control.windowProc(Control.java:4841)
    at org.eclipse.swt.widgets.Display.windowProc(Display.java:4931)
    at org.eclipse.swt.internal.win32.OS.DefWindowProc(Native Method)
    at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:91)
    at org.eclipse.swt.widgets.Control.windowProc(Control.java:4841)
    at org.eclipse.swt.widgets.Display.windowProc(Display.java:4931)
    at org.eclipse.swt.internal.win32.OS.DefWindowProc(Native Method)
    at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:91)
    at org.eclipse.swt.widgets.Control.windowProc(Control.java:4841)
    at org.eclipse.swt.widgets.Display.windowProc(Display.java:4931)
    at org.eclipse.swt.internal.win32.OS.DefWindowProc(Native Method)
    at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:91)
    at org.eclipse.swt.widgets.Control.windowProc(Control.java:4841)
    at org.eclipse.swt.widgets.Display.windowProc(Display.java:4931)
    at org.eclipse.swt.internal.win32.OS.DefWindowProc(Native Method)
    at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:91)
    at org.eclipse.swt.widgets.Control.windowProc(Control.java:4841)
    at org.eclipse.swt.widgets.Display.windowProc(Display.java:4931)
    at org.eclipse.swt.internal.win32.OS.DefWindowProc(Native Method)
    at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:91)
    at org.eclipse.swt.widgets.Control.windowProc(Control.java:4841)
    at org.eclipse.swt.widgets.Display.windowProc(Display.java:4931)
    at org.eclipse.swt.internal.win32.OS.DefWindowProc(Native Method)
    at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:91)
    at org.eclipse.swt.widgets.Control.windowProc(Control.java:4841)
    at org.eclipse.swt.widgets.Display.windowProc(Display.java:4931)
    at org.eclipse.swt.internal.win32.OS.DefWindowProc(Native Method)
    at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:91)
    at org.eclipse.swt.widgets.Control.windowProc(Control.java:4841)
    at org.eclipse.swt.widgets.Display.windowProc(Display.java:4931)
    at org.eclipse.swt.internal.win32.OS.DefWindowProc(Native Method)
    at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:91)
    at org.eclipse.swt.widgets.Control.windowProc(Control.java:4841)
    at org.eclipse.swt.widgets.Display.windowProc(Display.java:4931)
    at org.eclipse.swt.internal.win32.OS.DefWindowProc(Native Method)
    at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:91)
    at org.eclipse.swt.widgets.Control.windowProc(Control.java:4841)
    at org.eclipse.swt.widgets.Display.windowProc(Display.java:4931)
    at org.eclipse.swt.internal.win32.OS.DefWindowProc(Native Method)
    at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:91)
    at org.eclipse.swt.widgets.Control.windowProc(Control.java:4841)
    at org.eclipse.swt.widgets.Display.windowProc(Display.java:4931)
    at org.eclipse.swt.internal.win32.OS.DefWindowProc(Native Method)
    at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:91)
    at org.eclipse.swt.widgets.Control.windowProc(Control.java:4841)
    at org.eclipse.swt.widgets.Display.windowProc(Display.java:4931)
    at org.eclipse.swt.internal.win32.OS.DefWindowProc(Native Method)
    at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:91)
    at org.eclipse.swt.widgets.Control.windowProc(Control.java:4841)
    at org.eclipse.swt.widgets.Canvas.windowProc(Canvas.java:340)
    at org.eclipse.swt.widgets.Display.windowProc(Display.java:4931)
    at org.eclipse.swt.internal.win32.OS.DefWindowProc(Native Method)
    at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:91)
    at org.eclipse.swt.widgets.Control.windowProc(Control.java:4841)
    at org.eclipse.swt.widgets.Canvas.windowProc(Canvas.java:340)
    at org.eclipse.swt.widgets.Display.windowProc(Display.java:4931)
    at org.eclipse.swt.internal.win32.OS.DefWindowProc(Native Method)
    at org.eclipse.swt.widgets.Scrollable.callWindowProc(Scrollable.java:91)
    at org.eclipse.swt.widgets.Control.windowProc(Control.java:4841)
    at org.eclipse.swt.widgets.Display.windowProc(Display.java:4931)
    at org.eclipse.swt.internal.win32.OS.CallWindowProc(Native Method)
    at org.eclipse.swt.widgets.Label.callWindowProc(Label.java:123)
    at org.eclipse.swt.widgets.Control.windowProc(Control.java:4841)
    at org.eclipse.swt.widgets.Display.windowProc(Display.java:4931)
    at org.eclipse.swt.internal.win32.OS.PeekMessage(Native Method)
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3625)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1158)
    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1047)
    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 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:657)
    at org.eclipse.equinox.launcher.Main.basicRun(Main.java:594)
    at org.eclipse.equinox.launcher.Main.run(Main.java:1447)

我目前使用的插件是JBoss工具、Spring STS、Subeclipse和黑暗主题。我试图再次下载整个IDE，并取消选中大多数关于验证的选项，但没有成功。有什么想法吗？

非常感谢！！