Java - Llamar a otro main con argumentos

import java.io.IOException;

public class colaborar {

    private static int numeroLlamada=10;

    public static void main(String[]args) throws IOException{

        args[0]=String.valueOf(numeroLlamada);

        args[1]="mifichero.txt";//Peta en esta linea

        int llamadasInicial=10;

        int cuentaLlamadas=0;

        numeroLlamada=numeroLlamada+llamadasInicial;

        Lenguaje.main(args);

    }

}

public class Callee {

	/* */

	public static void process(int callNum, String fileName) {

		System.out.printf("Process of call# %d file %s\n", callNum, fileName);

	}

	/* */

	public static void main(String args[]) {

		if(args.length == 2) {

			process(Integer.valueOf(args[0]), args[1]);

		}

	}

}

public class Caller {

	/* */

	public static void main(String args[]) {

		Callee.process(10, "mifichero.txt");

	}

}