Issue in using Runtime.exec for service in linux

Question

Hi,
I have a problem in executing my own service through java6 on linux operating system.
I have created a UI (user interface) which contains a button. On clicking that button my own service gets executed successfully. But the problem is that when I close my UI, my service gets stopped. I want that it should keep running even when the UI gets closed.
I am using this command to start my service in ActionListener:
Runtime.getRuntime().exec("service myservice start");Am I missing something here?
Is this the expected behavior of exec()?

Answer 1

You need to use something along the lines of
        String[] command =
            "bash", "-c", "xemacs > /dev/null 2>&1 &"
        Process p = Runtime.getRuntime().exec(command);
        Thread stderr = new StreamGobbler(p.getErrorStream(), "stderr");
        stderr.setDaemon(true);
        stderr.start();
        Thread stdout = new StreamGobbler(p.getInputStream(), "stdout");
        stdout.setDaemon(true);
        stdout.start();
        int exitCode = p.waitFor();
        System.out.println("Exit code = " + exitCode);where the StreamGobbler class is taken from [http://www.javaworld.com/javaworld/jw-12-2000/jw-1229-traps.html|http://www.javaworld.com/javaworld/jw-12-2000/jw-1229-traps.html]. You should read all the 4 sections of this article.