Start a Java process at low priority using Runtime.exec / ProcessBuilder.start?

Question

I\'m trying to start an external process via Java using the ProcessBuilder class, and that much works. Currently running using the command:

new ProcessBuilde         


        

Answer 1

Use start command. It is windows dependent but does what you need. I have read there is no cross platform way for this.

ProcessBuilder pb = new ProcessBuilder("cmd", "/C start /B /belownormal javaws -version");
System.out.println("Before start");
Process start = pb.start();

It is even possible to read Input end Error streams.

To wait:

ProcessBuilder pb = new ProcessBuilder("cmd", "/C start /B /belownormal /WAIT javaws -sdasd");
System.out.println("Before start");
Process start = pb.start();
start.waitFor();
System.out.println("Done");

For premature destroy:

ProcessBuilder pb = new ProcessBuilder("cmd", "/C start /B /belownormal /WAIT javaws -sdasd");
System.out.println("Before start");
Process start = pb.start();
start.destroy();
start.waitFor();

System.out.println("Done");