@Override
    public String read(final Input input) {
        final long uuidHighBits = input.readLong(false);
        final long uuidLowBits = input.readLong(false);
        return new UUID(uuidHighBits, uuidLowBits).toString();
    }
Kryo serializer for a string representation of a {@link UUID}. The string form must
conform to the output generated by {@link UUID#toString()}.
<p>
May use variable length serialisation so the length of the serialised form is unknown.
stroom-lmdb/src/main/java/stroom/lmdb/serde/VariableLengthUUIDKryoSerializer.java