}
// setup is done; fire off the EventBus invocation
logger.fine("calling .invoke_rpc");
eb.send(
AMQP_BRIDGE_ADDR + ".invoke_rpc",
new JsonObject()
.putString("routingKey", amqpQueue)
.putObject("properties", new JsonObject().putString("contentType", "application/bson"))
.putBinary("body", baos.toByteArray()),