Alternate Processing Editor Using processing-java.exe on the Command line

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Based on your post, I now have it working on Windows 11. The command line code is now in processing.exe and is different from MacOS; hence the use of processing.exe in lieu of processing-java.exe. Another difference is Windows uses back slashes in file paths instead of forward slashes like the Unix systems; therefore I had to change both newFileAction() and runAction() to use back slashes and use folderPath with sketch= in runAction(). Actually when used in a string in Windows you have to use double back slashes as shown below.

The runAction() that works on my system follows:

void runAction() {
  String runFilePath = "";
  String folderPath = "";
  int selectedIndex = tabbedPane.getSelectedIndex();
  for (int i = 0; i < files.size(); i++) {
    String path = files.get(i);
    if (i == selectedIndex) {
      runFilePath = path;
      println(path);
      logArea.append("runAction : runFilePath = " + runFilePath + "\n");
    }
  }
  int lastSlashIndex = runFilePath.lastIndexOf('\\');
  if (lastSlashIndex != -1) {
    folderPath = runFilePath.substring(0, lastSlashIndex);
    logArea.append("runAction : folderPath = " + folderPath + "\n");
  } else {
    logArea.append("No path separator found.");
  }
  String sketchStr = "--sketch=" + folderPath;  
  logArea.append("Generated command: " + cmdStrExe + " cli " + sketchStr + " --run\n");
  ProcessBuilder processBuilder = new ProcessBuilder(cmdStrExe, "cli", sketchStr, "--run"); 
  try {
    process = processBuilder.start();
    BufferedReader stdIn = new BufferedReader(new InputStreamReader(process.getInputStream()));
    BufferedReader stdErr = new BufferedReader(new InputStreamReader(process.getErrorStream()));
    String outStr = "";
    while ((outStr = stdIn.readLine()) != null) {
      logArea.append(outStr + "\n");
    println(outStr);  
  }
    String errStr = "";
    while ((errStr = stdErr.readLine()) != null) {
      logArea.append(errStr + "\n");
    }
    // Wait for the process to complete and get its exit value
    int exitCode = process.waitFor();
    logArea.append("\nProcess exited with code: " + exitCode + "\n");
  }
  catch (IOException | InterruptedException e) {
    logArea.append(e + "\n");
  }
}

Output Windows11:

w11
w111675×1561 140 KB

Any idea how to get that vertical scrollbar to not be clipped?