How can I unblock from a Java started process?

Question

When executing some command(let\'s say \'x\') from cmd line, I get the following message: \"....Press any key to continue . . .\". So it waits for user input to unblock.

Answer 1

I wrote an answer to command line execution at this stackoverflow question.

Yours is a bit more tricky since you probably need to reply.

In your case it might me necessary to give the input stream gobbler something like a reply channel:

 StreamGobbler outputGobbler = new StreamGobbler(
                                    proc.getInputStream(), "OUTPUT", 
                                    proc.getOutputStream());

and make it match a pattern and reply on the given input stream.

while ((line = br.readLine()) != null) {
    System.out.println(type + ">" + line);
    if (line.contains(PRESS_KEY_CONTINUE) {
        ostream.write("y".getBytes("US-ASCII")); 
        System.out.println("< y"); 
    }
}

Hope this helps.