boolean containsKey(Object key,int hash){
  if (cnt != 0) {
    HashEntry<K,V> e=getFirst(hash);
    while (e != null) {
      if (e.hash == hash && key.equals(e.key))       return true;
      e=e.next;
    }
  }
  return false;
}

boolean containsKey ( Object key , int hash ) { if ( cnt != 0 ) { HashEntry < K , V > e = getFirst ( hash ) ; while ( e != null ) { if ( e . hash == hash && key . equals ( e . key ) ) return true ; e = e . next ; } } return false ; }
performs lock - free check of key presence .
