SecurityManager.checkMulticast(InetAddress maddr) has the following syntax.
public void checkMulticast(InetAddress maddr)
In the following code shows how to use SecurityManager.checkMulticast(InetAddress maddr) method.
import java.net.InetAddress; /* w w w .j a va 2 s . c om*/ public class Main extends SecurityManager { public static void main(String[] args) throws Exception { InetAddress add = InetAddress.getLocalHost(); System.setProperty("java.security.policy", "file:/C:/java.policy"); Main sm = new Main(); System.setSecurityManager(sm); sm.checkMulticast(add); System.out.println("Allowed!"); } }