public int size() {
   return map.size();
 }
 public boolean put(short key, boolean value) {
   return map.put(key, value);
 }
 public boolean remove(short key) {
   return map.remove(key);
 }
 public boolean isEmpty() {
   return map.isEmpty();
 }
 public boolean get(short key) {
   return map.get(key);
 }
 public boolean containsValue(boolean value) {
   return map.containsValue(value);
 }
 public boolean containsKey(short key) {
   return map.containsKey(key);
 }
 public void clear() {
   map.clear();
 }