microsoft / microsoft/vscode-java-debug
Getting 'ERROR: transport error 202: recv error: Connection reset by peer' while debugging
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Description
Environment:
- VS Code Version: 1.73.1
- Extension Version: Language Support for Java(TM) by Red Hat v1.13.2022111603
- JDK Type & Version: Oracle jdk1.8.0_351 - 32bit
- OS Type & Version: Windows 10 Enterprise
Step to Reproduce:
- Open an existing multi-module maven project in VS Code and wait until it is fully loaded. This project is relatively huge.
- Setup
launch.jsonwithattachandlaunchfor Java Project - The
launchconfig is working fine. Still, after a couple of minutes, I getERROR: transport error 202: recv error: Connection reset by peerin the terminal, and the debugger is disconnected. - The same happens with the
attachconfig. - I am able to debug successfully as long as the debugger is not disconnected.
- When debugging in the
attachconfig, the debugger keeps on listening, and I can attach again, but it will disconnect after a couple of minutes. - Even after the debugger is disconnected, the application is still active.
- The command used to start the debugger in
attachmode is:
C:\apps\jdk1.8.0_271\bin\java.exe "-agentlib:jdwp=transport=dt_socket,server=y,suspend=y,address=localhost:60082" '-Xincgc -Xms64m -Xmx950m' '-Dsun.security.ssl.allowUnsafeRenegotiation="true"' '-Djava.security.policy="policy.all"' '-Dpython.home=".."' '-Dcom.ibm.mq.cfg.useIBMCipherMappings="false"' '-Xbootclasspath/p:class1 class2 ...' '-cp' '.\classpath.jar' 'mainClassName'
Note: The command above to start the debugger is mostly provided as it is the same one used to launch the actual application.
Launch Config for attach:
{
"type": "java",
"name": "Attach to java debug port 60082",
"projectName": "sarora",
"request": "attach",
"hostName": "localhost",
"port": "60082"
}
Expected Behavior:
- The debugger should remain active and should not disconnect
Actual Behavior:
- The debugger is disconnecting after a couple of minutes.
Related Issues:
I found this report to be similar:
https://github.com/microsoft/vscode-java-debug/issues/164
and I followed the instructions to do the needed troubleshooting but it is not working.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reproducing the disconnect with the reported VS Code, extension, JDK, Windows, attach configuration, and large multi-module Maven project. Compare the behavior with related issue 164; done means the debugger remains connected while the application continues running.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java, typescript, vscode
- Domain
- devtools
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100