Main.java Source code

Introduction

Here is the source code for Main.java

Source

public class Main extends SecurityManager {

    // checkListen needs to be overriden
    @Override
    public void checkListen(int port) {
        throw new SecurityException();
    }

    public static void main(String[] args) {
        System.setProperty("java.security.policy", "file:/C:/java.policy");

        SecurityManager sm = new Main();

        System.setSecurityManager(sm);

        // perform the check
        sm.checkListen(8080);

        System.out.println("Allowed!");
    }
}