code: @Override
      public HashCode secureHash() {
          final Hasher code =
              StandardSettings.HASHFUNC.newHasher().putLong(mBucketKey).putLong(mRevisionCount).putLong(
                  mBucketCounter);
          for (int i = 0; i < mReferenceKeys.length; i++) {
              code.putLong(mReferenceKeys[i]);
              code.putBytes(mReferenceHashs[i]);
          }
          return code.hash();
      }
docs: {@inheritDoc}