code: @Override
      protected final void unserialize(ByteBuffer bytes)
      {
          super.unserialize(bytes);
          // one used for initial value
          m_data_ = ICUBinary.getInts(bytes, m_dataLength_, 0);
          m_initialValue_ = m_data_[0];
      }
docs: <p>Parses the input stream and stores its trie content into a index and
  data array</p>
  @param bytes data buffer containing trie data