ByteBuffer buffer = ByteBuffer.allocate(PING_FRAME_SIZE);
buffer.putLong(uuid.getMostSignificantBits());
buffer.putLong(uuid.getLeastSignificantBits());
ByteBuffer buffer = ByteBuffer.allocate(PING_FRAME_SIZE);
buffer.putLong(uuid.getMostSignificantBits());
buffer.putLong(uuid.getLeastSignificantBits());