I am trying to execute a sh script file from a Java method.

The key part of the code looks like this:

        Process p = null;

        try {
            p = Runtime.getRuntime().exec("start_team.sh");
        } catch (IOException e) {
            System.out.println(e.toString());
        }

        try {
            (Thread.currentThread()).sleep(30000);
        } catch (Exception e) {
            System.out.println(e.toString());
        }

The script runs fine on its own ("./start_team.sh" at command line),
but when we
execute this code, it freezes up about midway through, while the main
thread is still sleeping.

Does anyone know where to look to fix this code?  Is there something
obvious I'm missing?

Thanks for your time.