Sorry, i've finally solved myself the issue : I was using a DelegateAsyncProcessor to wrap processors and generate logs, but returning a Processor instead of a an AsyncProcessor.
=> only Asyncprocessor supports async and then multithreading ! -- View this message in context: http://camel.465427.n5.nabble.com/Concurrent-file-polling-doesn-t-work-with-Spring-XML-tp4757643p4757764.html Sent from the Camel - Users mailing list archive at Nabble.com.