VSCode Java Debugger "Error Unable to open 'thing.java': File not found (\thing.java)."

Question

I am receiving this error when try to debug java in VSCode: Error Unable to open 'thing.java': File not found (\thing.java).

The debugger seems to be running (my code is paused, I can see local variables and step through, but the source code is not being shown).

Here is my launch.json:

{
  "name": "Java",
  "type": "java",
  "request": "launch",
  "stopOnEntry": true,
  "preLaunchTask": "build",
  "jdkPath": "${env:JAVA_HOME}/bin",
  "cwd": "${workspaceRoot}",
  "startupClass": "my.package.classname",
  "options": [
    "-classpath",
    "${workspaceRoot}/bin"      
  ]
}

What am I doing wrong? How can I get the source code to show?

Lindsay-Needs-Sleep · Accepted Answer · 2021-05-15 00:19:52Z

2

It appears javaVSCode (Java debugger for VSCode) is having trouble locating the source files. This was an issue for this, and it appears to be fixed.

Unfortunately there was no documentation. So, after looking through the merge and some experimentation, the answer is to:

Add the "sourcePaths" option to your configuration

eg.

{
  "name": "Java",
  "type": "java",
  "request": "launch",
  "stopOnEntry": true,
  "preLaunchTask": "build",
  "jdkPath": "${env:JAVA_HOME}/bin",
  "sourcePaths": ["${workspaceRoot}/src/my/package"],
  "cwd": "${workspaceRoot}",
  "startupClass": "my.package.classname",
  "options": [
    "-classpath",
    "${workspaceRoot}/bin"      
  ]
}

edited May 15, 2021 at 0:19

answered May 17, 2017 at 10:41

Lindsay-Needs-Sleep

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1 Comment

AhmedRana Over a year ago

sourcePath has now chagned to sourcePaths

Rodrigo Celebrone · Accepted Answer · 2018-05-07 03:03:20Z

0

This problem happen if you don't have JAVA_HOME set to your environment:

Run in terminal: echo $JAVA_HOME

If nothing appears, just set it: export JAVA_HOME=/usr/java/your-jdk-version/

edited May 7, 2018 at 3:03

answered May 7, 2018 at 2:09

Rodrigo Celebrone

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