Main.java Source code

Introduction

Here is the source code for Main.java

Source

public class Main extends SecurityManager {

    // check access needs to overriden
    @Override
    public void checkAccess(ThreadGroup a) {
        throw new SecurityException("Not allowed.");
    }

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

        SecurityManager sm = new Main();

        System.setSecurityManager(sm);

        // check if accepting access for thread group is enabled
        sm.checkAccess(new ThreadGroup("example"));

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