How do you attach to a remote Java debugger using Visual Studio Code

Question

I am trying to configure Visual Studio Code so that I can use it instead of IJ for debugging a complex Java app. Because of reasons too complicated to get into, I have been running on a terminal using mvnDebug then connecting using JDB. In IJ I set this up as a remote debugger, however, I can't seem to find the same option in VSC.

I have tried this extension, but I can't figure out how to configure it for just JDB (I shouldn't need startupClass etc).

How do I use JDB with Visual Studio Code?

I'm still wondering in 2018

GabrielBB
– GabrielBB

2018-03-23 20:48:00 +00:00
Commented Mar 23, 2018 at 20:48 — GabrielBB
– GabrielBB, Commented Mar 23, 2018 at 20:48
Still relevant in 2021 @GabrielBB :D

Zack
– Zack

2021-05-28 13:34:59 +00:00
Commented May 28, 2021 at 13:34 — Zack
– Zack, Commented May 28, 2021 at 13:34
Still relevant in 2022

Matheus Castello
– Matheus Castello

2022-09-07 02:00:08 +00:00
Commented Sep 7, 2022 at 2:00 — Matheus Castello
– Matheus Castello, Commented Sep 7, 2022 at 2:00
Still relevant in 2023.

Vladislavs Dovgalecs
– Vladislavs Dovgalecs

2023-08-01 15:29:53 +00:00
Commented Aug 1, 2023 at 15:29 — Vladislavs Dovgalecs
– Vladislavs Dovgalecs, Commented Aug 1, 2023 at 15:29
Still relevant in 2024

Anentropic
– Anentropic

2024-03-15 20:14:33 +00:00
Commented Mar 15, 2024 at 20:14 — Anentropic
– Anentropic, Commented Mar 15, 2024 at 20:14

Aman Verma · Accepted Answer · 2018-11-20 09:13:12Z

63

Create a Debug Configuration like below and press F5 to debug :

"version": "0.2.0",
"configurations": [
    {
        "type": "java",
        "name": "Debug (Attach)",
        "projectName": "Your_Project_Name",
        "request": "attach",
        "hostName": "your_host_name",
        "port": Debugging_port
    }
]

Example :

"version": "0.2.0",
"configurations": [
    {
        "type": "java",
        "name": "Debug (Attach)",
        "projectName": "MyApplication",
        "request": "attach",
        "hostName": "localhost",
        "port": 8787
    }
]

I am using wildfly server. So the default debugging port is 8787.

answered Nov 20, 2018 at 9:13

Aman Verma

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4 Comments

user2571962 Over a year ago

When using Wildfly, you have to start the server with debug option: stanadalone.bat --debug 8787

jurl Over a year ago

Thanks! I use gradle task with JavaExec so adding debugOptions section did the work for me in order to connect

tarekahf Over a year ago

How to do the same, that is, remote debug Java web application running on Tomcat from vs code?

Ido Over a year ago

How can you pass arguments for the remote JVM? (e.g. -agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=5005)

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