microsoft / microsoft/vscode-java-debug
Randomly Failed to lanuch debuggee in terminal: com.sun.jdi.connect.TransportTimeoutException
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描述
Randomly getting error: Failed to lanuch debuggee in terminal: com.sun.jdi.connect.TransportTimeoutException
Environment
- Operating System: Debian GNU/Linux 12 x86_64
- JDK version: openjdk 17.0.7
- Visual Studio Code version: 1.79.2 (vscodium)
- Java extension version: v0.25.2023042006
- Java Debugger extension version: v0.51.0
Steps To Reproduce
It occurs completely randomly, and can be for any java code.
I managed to reproduce it:
- Create a simple
Test.java.
sample project
package com;
import java.util.Scanner;
public class Test {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
int i = scanner.nextInt();
}
}
- Start the program, enter
1in the terminal, pressEnter. - Repeat step 2 until error occurs. (10 ~ 30 repeats)
- After randomly repeating, from now on the program freezes every time, and after 20 seconds later a message always pops up, saying
Failed to lanuch debuggee in terminal. Reason: com.sun.jdi.connect.TransportTimeoutException
screenshot
launch.json
{
"version": "0.2.0",
"configurations": [
{
"type": "java",
"name": "Test",
"request": "launch",
"mainClass": "com.Test",
"projectName": "temp_43be885e"
},
{
"type": "java",
"name": "Current File",
"request": "launch",
"mainClass": "${file}"
},
{
"type": "java",
"name": "App",
"request": "launch",
"mainClass": "App",
"projectName": "temp_43be885e"
},
{
"type": "java",
"name": "Main",
"request": "launch",
"mainClass": "com.Main",
"projectName": "temp_43be885e"
}
]
}
It doesn't happens a lot when I try to reproduce it.
Java Language Server Log
!ENTRY java-debug 4 0 2023-06-22 18:15:38.087
!MESSAGE [error response][launch]: Failed to launch debuggee in terminal. Reason: com.sun.jdi.connect.TransportTimeoutException
!STACK 0
com.microsoft.java.debug.core.DebugException: Failed to launch debuggee in terminal. Reason: com.sun.jdi.connect.TransportTimeoutException
at com.microsoft.java.debug.core.adapter.handler.LaunchWithDebuggingDelegate.lambda$launchInTerminal$0(LaunchWithDebuggingDelegate.java:147)
at java.base/java.util.concurrent.CompletableFuture.uniWhenComplete(Unknown Source)
at java.base/java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(Unknown Source)
at java.base/java.util.concurrent.CompletableFuture.postComplete(Unknown Source)
at java.base/java.util.concurrent.CompletableFuture.complete(Unknown Source)
at com.microsoft.java.debug.core.protocol.AbstractProtocolServer.lambda$sendRequest$2(AbstractProtocolServer.java:178)
at io.reactivex.internal.observers.LambdaObserver.onNext(LambdaObserver.java:63)
at io.reactivex.internal.operators.observable.ObservableObserveOn$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)
Additional Informations
- It occurs completely randomly, and can be for any java code.
- Cleaning java workspace could temporarily fix.
- Downgrading the extension to 0.50.0 doesn't fix it. It didn't occur to me in the few months ago.
- Downgrading the extension to 0.49.0 and 0.46.0, doesn't seem to be able to reproduce (but it's hard to tell because it is random).
- Adding
"java.debug.settings.console":"internalConcole"inUser/settings.jsonseems to fix it, but I cannot use the terminal to enter inputs now. reference
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调研方向
从 LaunchWithDebuggingDelegate.java 第 147 行开始,这里堆栈跟踪报告了终端启动失败。使用所示的 Test.java 程序重复输入 1 进行复现,并比较启用或禁用终端控制台设置时的行为。完成标准是重复启动不再冻结或以 TransportTimeoutException 结束。
由索引模型根据 Issue 内容生成。
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