grant {
    permission com.sun.rmi.rmid.ExecOptionPermission "-Djava.security.manager=default";
    permission com.sun.rmi.rmid.ExecOptionPermission "-Djava.security.policy=*";
    permission java.lang.RuntimePermission "selectorProvider";
    permission java.lang.RuntimePermission "accessClassInPackage.sun.nio.ch";
};