Ok, I looked into this and found the message in the Activemq source. It looks like it is trying to set an Object Property using the values part of the return map. Maybe something it getting confused somewhere.
Changing the server to return a List instead solved the problem. Not sure why! -- View this message in context: http://camel.465427.n5.nabble.com/MessageFormatException-using-requestBody-InOut-over-activemq-JMS-tp5554469p5555747.html Sent from the Camel - Users mailing list archive at Nabble.com.
