Create an empty Map in Java

//from  w w w .j a v  a  2 s .co  m
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[]) {
    Map map = Collections.EMPTY_MAP;
    Map<Date, String> d = Collections.emptyMap();

  }
}