text: public override bool containsKey(object key){if (key == null){return entryForNullKey != null;}int hash = key.GetHashCode();hash ^= ((int)(((uint)hash) >> 20)) ^ ((int)(((uint)hash) >> 12));hash ^= ((int)(((uint)hash) >> 7)) ^ ((int)(((uint)hash) >> 4));java.util.HashMap.HashMapEntry<K, V>[] tab = table;{for (java.util.HashMap.HashMapEntry<K, V> e = tab[hash & (tab.Length - 1)]; e !=null; e = e.next){K eKey = e.key;if (Sharpen.Util.Equals(eKey, key) || (e.hash == hash && key.Equals(eKey))){return true;}}}return false;}