Lazy Pirate server in Java

package guide;

import java.util.Random;

import org.zeromq.SocketType;
import org.zeromq.ZMQ;
import org.zeromq.ZMQ.Socket;
import org.zeromq.ZContext;

//
// Lazy Pirate server
// Binds REQ socket to tcp://*:5555
// Like hwserver except:
// - echoes request as-is
// - randomly runs slowly, or exits to simulate a crash.
//

public class lpserver
{

public static void main(String[] argv) throws Exception
{
Random rand = new Random(System.nanoTime());

try (ZContext context = new ZContext()) {
Socket server = context.createSocket(SocketType.REP);
server.bind("tcp://*:5555");

int cycles = 0;
while (true) {
String request = server.recvStr();
cycles++;

// Simulate various problems, after a few cycles
if (cycles > 3 && rand.nextInt(3) == 0) {
System.out.println("I: simulating a crash");
break;
}
else if (cycles > 3 && rand.nextInt(3) == 0) {
System.out.println("I: simulating CPU overload");
Thread.sleep(2000);
}
System.out.printf("I: normal request (%s)\n", request);
Thread.sleep(1000); // Do some heavy work
server.send(request);
}
}
}
}