microsoft / microsoft/vscode-java-debug

Unable to Debug/Attch Java Maven on Vscode

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Beschreibung

Unable to debug Java Maven Project.

Environment
  • Operating System: Win10 Enterprise . Build No : 19045.3208 version : 22H2
  • JDK version: 1.8.0_281
  • Visual Studio Code version: 1.81.1 User Setup
  • Java extension version: 0.25.13
  • Java Debugger extension version: v0.54.0
Steps To Reproduce
  1. Vs code setting.json
{
    
    "update.mode": "none",
    "workbench.startupEditor": "none",
    "telemetry.telemetryLevel": "off",
    "java.autobuild.enabled": false,
    "java.configuration.runtimes": [
        {
            "name": "JavaSE-1.8",
            "default": true,
            "path": "C:\\Program Files\\Java\\jdk1.8.0_281"
        }
    ]
}
  1. java debug log file

!ENTRY java-debug 1 0 2023-08-29 22:05:54.430
!MESSAGE Trying to attach to remote debuggee VM localhost:61739 .

!ENTRY java-debug 4 0 2023-08-29 22:05:54.468
!MESSAGE [error response][attach]: Failed to attach to remote debuggee VM. Reason: java.net.ConnectException: Connection refused: connect
!STACK 0
com.microsoft.java.debug.core.DebugException: Failed to attach to remote debuggee VM. Reason: java.net.ConnectException: Connection refused: connect
at com.microsoft.java.debug.core.adapter.AdapterUtils.createCompletionException(AdapterUtils.java:266)
at com.microsoft.java.debug.core.adapter.handler.AttachRequestHandler.handle(AttachRequestHandler.java:81)
at com.microsoft.java.debug.core.adapter.DebugAdapter.lambda$dispatchRequest$0(DebugAdapter.java:94)
at java.base/java.util.concurrent.CompletableFuture.uniComposeStage(Unknown Source)
at java.base/java.util.concurrent.CompletableFuture.thenCompose(Unknown Source)
at com.microsoft.java.debug.core.adapter.DebugAdapter.dispatchRequest(DebugAdapter.java:93)
at com.microsoft.java.debug.core.adapter.ProtocolServer.dispatchRequest(ProtocolServer.java:118)
at com.microsoft.java.debug.core.protocol.AbstractProtocolServer.lambda$new$0(AbstractProtocolServer.java:81)
at io.reactivex.internal.observers.LambdaObserver.onNext(LambdaObserver.java:63)
at io.reactivex.internal.operators.observable.ObservableObserveOn$ObserveOnObserver.drainNormal(ObservableObserveOn.java:201)
at io.reactivex.internal.operators.observable.ObservableObserveOn$ObserveOnObserver.run(ObservableObserveOn.java:255)
at io.reactivex.internal.schedulers.ScheduledRunnable.run(ScheduledRunnable.java:66)
at io.reactivex.internal.schedulers.ScheduledRunnable.call(ScheduledRunnable.java:57)
at java.base/java.util.concurrent.FutureTask.run(Unknown Source)
at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.base/java.lang.Thread.run(Unknown Source)
Caused by: java.net.ConnectException: Connection refused: connect
at java.base/sun.nio.ch.Net.connect0(Native Method)
at java.base/sun.nio.ch.Net.connect(Unknown Source)
at java.base/sun.nio.ch.Net.connect(Unknown Source)
at java.base/sun.nio.ch.NioSocketImpl.connect(Unknown Source)
at java.base/java.net.SocksSocketImpl.connect(Unknown Source)
at java.base/java.net.Socket.connect(Unknown Source)
at java.base/java.net.Socket.connect(Unknown Source)
at java.base/java.net.Socket.(Unknown Source)
at java.base/java.net.Socket.(Unknown Source)
at org.eclipse.jdi.internal.connect.SocketTransportService$2.run(SocketTransportService.java:147)
... 1 more

Launch setting file

{
				"type": "java",
				"name": "Attach Service",
				"request": "attach",
				"processId" : "${command:PickJavaProcess}",
				"timeout": 300000

			}
Current Result

When the type is launch in Launch setting , the debugger starts but after a certain time period the debugger stops , but application is in running mode in the backend . on Debugger console I can see "ERROR: transport error 202: recv error: Connection reset by peer".
So I tried to do attach java process , Vscode is not able to attach , it shows the java process on popup , when I click on it , it throws error dialog saying "Failed to attach remote debuggee VM. Reason java.net.connectException:connection refused connect"

Expected Result

debugger should work

Additional Informations

Back 5/6months ago , I was able to do the debugging correct with the same project on vscode , then I recently updated it to debug the same project and its throwing exception now.

Beitragsleitfaden

Beitragsleitfaden öffnen

Erste Schritte

  1. Lies das ganze Issue und danach den Beitragsleitfaden des Projekts.
  2. Schreib ins Issue, dass du es übernimmst — das erspart doppelte Arbeit.
  3. Forke das Repository und arbeite in einem Branch.
  4. Öffne einen Pull Request, der die Issue-Nummer nennt.

Rechercherichtung

Beginne damit, den Fehler mit der gezeigten setting.json und der Java-Startkonfiguration zu reproduzieren, und untersuche dann das java-debug-Protokoll im Bereich von AttachRequestHandler.java sowie den connection-refused-Fehler. Vergleiche das Start- und Attach-Verhalten unter den angegebenen Windows- und JDK-Versionen; abgeschlossen ist die Arbeit, wenn der Debugger verbunden bleibt und eine Verbindung zum ausgewählten Java-Prozess herstellen kann.

Vom Indexierungsmodell aus dem Issue-Text verfasst.

Bewertung

Tech-Stack
java, vscode
Bereich
developer-experience, devtools
Issue-Typ
Bug
Schwierigkeit
4/5
Geschätzter Aufwand
3-5 Tage
Aktivitätsstatus
Veraltet
Klarheit
Muss geklärt werden
Anfängerfreundlichkeit
25/100

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