Thanks, Henryk, I really appreciate your answer. I can see that the FilterProcessor do exchange.setProperty(Exchange.FILTER_MATCHED, matches); and I also see that the GroupedExchangeAggregationStrategy puts the Exchange in it's list of answer.properties.
I also set headers/properties myself (in bold below). But I am still not able to access any of those headers in the "filterMatchCheckRouter" as stated below. The headers are just not there in the exchange sent to filterMatchCheckRouter. Could Spring mess up things? Or am I missing out on something here? Is my config wrong? ProcessorDefinition processorDefinition = from(incomingQueue).routeId("ProducerRoute").shutdownRoute(ShutdownRoute.Defer).shutdownRunningTask(ShutdownRunningTask.CompleteAllTasks).convertBodyTo(Document.class); MulticastDefinition multicastDefinition = processorDefinition.multicast(*new GroupedExchangeAggregationStrategy()*); for (Producer producer : producers) { multicastDefinition .filter().method(producer, "filter") *.process(new Processor() { @Override public void process(Exchange exchange) throws Exception { exchange.getIn().setHeader("KEY1", "value1"); exchange.setProperty("KEY2", "value2"); }}) * .bean(producer, "createEvent") .to(EndPointUri.INCOMING_EVENT_QUEUE); } multicastDefinition.to("direct:filterMatchCheckRouter"); -- View this message in context: http://camel.465427.n5.nabble.com/copy-of-Exchange-during-Multicast-tp5714477p5714528.html Sent from the Camel - Users mailing list archive at Nabble.com.