Eclipse 2021-09 is not showing outline for javascript files

Question

I have eclipse 2021-09 (4.21.0) installed with Wild Web Developer 0.11.0 and Node.js embedder included. Javascript files are opened with Generic Text Editor, syntax highlighting is shown but outline view is empty. Even for the most simple *.js files. Take a look at the included screenshot:

What might be wrong? How to fix it?

EDIT:

The same problems exist in a fresh, newly created workspace, with the same example javascript file.

Quick Outline (Ctrl+O) produces java.util.concurrent.TimeoutException with the following message: LanguageServer not initialized after 10s

Exception Stack Trace:

java.util.concurrent.TimeoutException
    at java.base/java.util.concurrent.CompletableFuture.timedGet(CompletableFuture.java:1950)
    at java.base/java.util.concurrent.CompletableFuture.get(CompletableFuture.java:2085)
    at org.eclipse.lsp4e.LanguageServerWrapper.getServerCapabilities(LanguageServerWrapper.java:706)
    at org.eclipse.lsp4e.LanguageServiceAccessor.lambda$12(LanguageServiceAccessor.java:557)
    at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:176)
    at java.base/java.util.Iterator.forEachRemaining(Iterator.java:133)
    at java.base/java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801)
    at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484)
    at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
    at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150)
    at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173)
    at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
    at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497)
    at org.eclipse.lsp4e.LanguageServiceAccessor.getLSPDocumentInfosFor(LanguageServiceAccessor.java:558)
    at org.eclipse.lsp4e.operations.symbols.LSPSymbolInFileHandler.execute(LSPSymbolInFileHandler.java:40)
    at org.eclipse.ui.internal.handlers.HandlerProxy.execute(HandlerProxy.java:283)
    at org.eclipse.ui.internal.handlers.E4HandlerProxy.execute(E4HandlerProxy.java:97)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:564)
    at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:58)
    at org.eclipse.e4.core.internal.di.InjectorImpl.invokeUsingClass(InjectorImpl.java:317)
    at org.eclipse.e4.core.internal.di.InjectorImpl.invoke(InjectorImpl.java:251)
    at org.eclipse.e4.core.contexts.ContextInjectionFactory.invoke(ContextInjectionFactory.java:173)
    at org.eclipse.e4.core.commands.internal.HandlerServiceHandler.execute(HandlerServiceHandler.java:156)
    at org.eclipse.core.commands.Command.executeWithChecks(Command.java:488)
    at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:487)
    at org.eclipse.e4.core.commands.internal.HandlerServiceImpl.executeHandler(HandlerServiceImpl.java:213)
    at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.executeCommand(KeyBindingDispatcher.java:308)
    at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.press(KeyBindingDispatcher.java:580)
    at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.processKeyEvent(KeyBindingDispatcher.java:647)
    at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.filterKeySequenceBindings(KeyBindingDispatcher.java:439)
    at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher$KeyDownFilter.handleEvent(KeyBindingDispatcher.java:96)
    at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89)
    at org.eclipse.swt.widgets.Display.filterEvent(Display.java:1270)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1059)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1084)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1069)
    at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1111)
    at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1107)
    at org.eclipse.swt.widgets.Widget.wmChar(Widget.java:1536)
    at org.eclipse.swt.widgets.Control.WM_CHAR(Control.java:4875)
    at org.eclipse.swt.widgets.Canvas.WM_CHAR(Canvas.java:345)
    at org.eclipse.swt.widgets.Control.windowProc(Control.java:4753)
    at org.eclipse.swt.widgets.Canvas.windowProc(Canvas.java:340)
    at org.eclipse.swt.widgets.Display.windowProc(Display.java:4958)
    at org.eclipse.swt.internal.win32.OS.DispatchMessage(Native Method)
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3624)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1150)
    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1041)
    at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:155)
    at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:644)
    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338)
    at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:551)
    at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:156)
    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: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:64)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:564)
    at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:659)
    at org.eclipse.equinox.launcher.Main.basicRun(Main.java:596)
    at org.eclipse.equinox.launcher.Main.run(Main.java:1467)

Session data:

eclipse.buildId=4.21.0.I20210906-0500
java.version=15.0.1
java.vendor=Oracle Corporation
BootLoader constants: OS=win32, ARCH=x86_64, WS=win32, NL=en_US
Framework arguments:  -product org.eclipse.epp.package.jee.product
Command-line arguments:  -os win32 -ws win32 -arch x86_64 -product org.eclipse.epp.package.jee.product

Answer 1

It seems like a symptom of https://github.com/eclipse/wildwebdeveloper/issues/294 . Monitor the issue for potential workarounds and resolutions.

Answer 2

I am using Eclipse IDE for Enterprise Java and Web Developers (includes Incubating components) Version: 2023-03 (4.27.0) Build id: 20230309-1520 OS: Windows 11 I was facing the same problem and tried various means but failed. But your new edit on "LanguageServer not initialized after 10s" made a lightbulb glow inside my head. I remembered that earlier I had stopped the Language Server from running in the background as it was constantly bugging me. So, I went ahead and started the same, this time only for Javascript content types. Windows -> Preferences -> Language Servers

Voila !!! Thereafter, my outline started appearing. Wanted to share this with you folks just in case it helps. Thanks