Diffreren behaviour of ProcessBuilder in javac and NetBeands builds

问题

I have a code:

import javax.swing.SwingUtilities;
import java.io.File;
import java.io.IOException;

class RunIt{

if (args.length==0) {
    ProcessBuilder pb = new ProcessBuilder("java","-Xmx768m","RunIt","anArgument");
    pb.directory(new File("."));            
    try {
        Process process = pb.start();
    }
    catch(IOException e) {
        e.printStackTrace();
    }                       
    System.exit(0);
}
SwingUtilities.invokeLater(new Runnable(){public void run(){new classWithJFrameInConstructor();}});
}

import JFrame;

class classWithJFrameInConstructor{
 JFrame frame;

 classWithJFrameInConstructor(){
  frame=new JFrame();
  frame.setVisible(true);
 }
}

Where classWithJFrameInConstructor is class where JFrame is created and set visible in class constructor

If I compile it normally using javac it works well. But if I compile it in NetBeans no windows is run.

The problem part is:

System.exit(0);

If this code is missing builds from javac runs two app windows. Vice versa NetBeans build runs normally.

来源：https://stackoverflow.com/questions/34015537/diffreren-behaviour-of-processbuilder-in-javac-and-netbeands-builds