AggregateProcessor ap = new AggregateProcessor(context, done, corr, as, executorService, true);
ap.setCompletionSize(100);
ap.setCompletionFromBatchConsumer(true);
ap.start();
Exchange e1 = new DefaultExchange(context);
e1.getIn().setBody("A");
e1.getIn().setHeader("id", 123);
e1.setProperty(Exchange.BATCH_INDEX, 0);