What is the correct way to execute an AutoIt3 script in Java?

public static void runScript() throws Exception { 
        
        try { 
            
            ProcessBuilder pb = new ProcessBuilder("C:\\Program Files (x86)\\AutoIt3\\AutoIt3.exe\"", "\"C:\\Users\\Cameron\\workspace\\truecryptgui.au3\"");
             Process p = pb.start();
            
                
             System.out.println("Script executed, TrueCrypt volume created!");
        }
        catch (IOException e) { 
                System.out.println("exception happened - here's what I know: ");
                e.printStackTrace();
                System.exit(-1);
        }
        
    }