Process exit code returning as 1 for applescript command and not opening terminal in macOS (happening for other ppl system)

Question

below code is executed but not opening my mac os terminal on my colleague machine and returing exit code as 1 instead of 0

  Runtime runtime = Runtime.getRuntime();
  String output= "";
  String[] myCommand = null;
  
  if(command.equals("open")) {
      String[] openTerminal = new String[] {
             //"/bin/bash", "-c", 
             "osascript -e 'tell application \"Terminal\" to do script \"" +
                    "echo Welcome to Tectonic" +"\"'"                   
        };

      myCommand = openTerminal;
  }

  try
  {
      Process p = runtime.exec(myCommand);
        InputStream stdIn = p.getInputStream();
        InputStreamReader isr = new InputStreamReader(stdIn);
        BufferedReader br = new BufferedReader(isr);

        String line = null;

        
        int exitVal = p.waitFor();
        if(exitVal==0) {

        }

Answer 1

You'll see the error message if you add this after exec :

p.getErrorStream().transferTo(System.out);

Or merge stderr to stdout:

ProcessBuilder pb = new ProcessBuilder(cmd);
pb.redirectErrorStream(true);
Process process = pb.start();
process.getInputStream().transferTo(System.out);
int rc = process.waitFor();