title: VSCode Java Debugger "Error Unable to open 'thing.java': File not found (\thing.java)."
body: <p>I am receiving this error when try to debug java in VSCode:
  <code>Error Unable to open 'thing.java': File not found (\thing.java).</code></p>
  
  <p>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).</p>
  
  <p>Here is my launch.json:</p>
  
  <pre><code>{
    "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"      
    ]
  }
  </code></pre>
  
  <p>What am I doing wrong?  How can I get the source code to show?</p>