Method startDebug

java/src/processing/mode/java/Debugger.java:163–222

Start a debugging session. Builds the sketch and launches a VM to run it. VM starts suspended. Should produce a VMStartEvent.

()

   * VM starts suspended. Should produce a VMStartEvent.
   */
  public synchronized void startDebug() {
    //stopDebug(); // stop any running sessions
    if (isStarted()) {
      return; // do nothing
    }

    // we are busy now
    editor.statusBusy();

    // clear console
    editor.clearConsole();

    // clear variable inspector (also resets expanded states)
    editor.variableInspector().reset();

    // load edits into sketch obj, etc...
    editor.prepareRun();

    // after prepareRun, since this removes highlights
    editor.activateDebug();

    try {
      Sketch sketch = editor.getSketch();
      JavaBuild build = new JavaBuild(sketch);

      log("building sketch: " + sketch.getName());
      //LineMapping.addLineNumbers(sketch); // annotate
//      mainClassName = build.build(false);
      mainClassName = build.build(true);
      //LineMapping.removeLineNumbers(sketch); // annotate
      log("class: " + mainClassName);

      // folder with assembled/preprocessed src
      srcPath = build.getSrcFolder().getPath();
      log("build src: " + srcPath);
      // folder with compiled code (.class files)
      log("build bin: " + build.getBinFolder().getPath());

      if (mainClassName != null) {
        // generate the source line mapping
        //lineMap = LineMapping.generateMapping(srcPath + File.separator + mainClassName + ".java");

        log("launching debuggee runtime");
        runtime = new Runner(build, new RunnerListenerEdtAdapter(editor));
        VirtualMachine vm = runtime.debug(null); // non-blocking
        if (vm == null) {
          loge("error 37: launch failed", null);
        }

        // start receiving vm events
        VMEventReader eventThread = new VMEventReader(vm.eventQueue(), vmEventListener);
        eventThread.start();

        startTrackingLineChanges();
        editor.statusBusy();
      }
    } catch (Exception e) {
      editor.statusError(e);