Create an empty Set in Java

/*from www .j  a  v a  2  s  . c  om*/
import java.util.Collections;
import java.util.Date;
import java.util.List;
import java.util.Map;
import java.util.Set;

public class Main {
  public static void main(String args[]) {
    Set set = Collections.EMPTY_SET;
    Set<Long> l = Collections.emptySet();

  }
}