Camel in Action book appendix B covers the ProducerTemplate all the *request* methods is using InOut (request/reply). all the *send* methods is using InOnly.
The javadoc is improved so check the latest source code for better java doc. And btw subscribe to the mailing list to be sure more people read your posts. See note here: http://camel.apache.org/discussion-forums.html -- View this message in context: http://camel.465427.n5.nabble.com/Understanding-Request-Reply-tp3215755p3216134.html Sent from the Camel - Users mailing list archive at Nabble.com.