@Override
	public void checkMulticast(InetAddress maddr) {
		throw new SecurityException("Multicast on " + maddr.toString() + " is not always allowed.");
	}
File delete access is allowed <br>
on "agent.exec.folder".

@param file file path
ngrinder-runtime/src/main/java/org/ngrinder/sm/NGrinderSecurityManager.java