if (qMessageJSON.has(SNS_MESSAGE_KEY)) { // posted from SNS
payloadJSON = qMessageJSON.getString(SNS_MESSAGE_KEY);
// XXX: other SNS attributes?
}
MessagePacket packet = MessagePacket.fromJSON(payloadJSON);
MessageBuilder<?> builder = MessageBuilder.fromMessage(packet
.assemble());
if (qMessage != null) {
builder.setHeader(SqsHeaders.MSG_RECEIPT_HANDLE,
qMessage.getReceiptHandle());
builder.setHeader(SqsHeaders.AWS_MESSAGE_ID,