docs: @SuppressWarnings("unchecked")
      public V get(final long key) {
          int index = longHash(key, mask);
          Object value;
          while (null != (value = values[index])) {
              if (key == keys[index]) {
                  return (V) value;
              }
              index = ++index & mask;
          }
          return null;
      }