Let's say we have camel-jms-inbound->bean-service->camel-jms-outbound with IN_ONLY for example. If an Exception is thrown in the camel-jms-outbound, camel OutboundHandler doesn't extract that fault from camel Exchange but just exit successfully. It should be extracted and thrown to the consumer. In addition, same thing happens on ClientProxyHandler. It also doesn't extract a fault on IN_ONLY. Both of these should be fixed to propagate a fault from camel-jms-outbound to camel-jms-inbound via bean-service.