});
JSONBufferPacker pk = new JSONBufferPacker(msgpack);
pk.write(v);
byte[] raw = pk.toByteArray();
String str = new String(raw);
assertEquals("{\"k1\":1,\"k2\":[null,true,false],\"k3\":0.1}", str);
JSONBufferUnpacker u = new JSONBufferUnpacker(msgpack).wrap(raw);