Camel 3.17.0 stop an outer splitter from an inner splitter on exception - apache-camel

Question

I have the following Apache Camel routes which have an outer and an inner splitters, however when error happens on an inner splitter I can see that an inner splitter stops, however an outer splitter does not, why?
While debugging I also see that on an inner and on the outer aggregators onCompletion exchange has an error (exchange.getException()), however outer splitter does not stop and proceeds till it ends. And My doTry ... doCatch block catches and exception only after an outer splitter ends. How to make so, that on an inner or an outer splitter error both would stop processing current exchanges and would wait for next exchanges?
from ("direct:outer-split")
.routeId("outer-split")
.doTry()
.split(body(), new OuterAggregator())
.stopOnException()
.shareUnitOfWork()
.streaming().process(s -> s.getMessage())
.to("direct:inner-split")
.end()
.to("direct:success-outer")
.endDoTry()
.doCatch(Exception.class)
.process(s -> System.out.println("124334"))
.stop()
.endDoTry();
from("direct:inner-split")
.routeId("inner-split")
.onException(TestException.class)
.onRedelivery(this::registerError)
.useExponentialBackOff()
.backOffMultiplier(1.5)
.maximumRedeliveryDelay(40000)
.maximumRedeliveries(-1)
.handled(true)
.stop()
.end()
.split(body(), new InnerAggregator())
.stopOnException()
.shareUnitOfWork()
.to("direct:doProcessing")
.end()
.to("direct:endSuccess");
from("direct:doProcessing")
.routeId("doProcessing")
.errorHandler(noErrorHandler())
.process(this::performAction);
public void performAction(Exchange exchange){
throw new RuntimeException();
}
The content of both of my aggregators is the following
#Override
public Exchange aggregate(Exchange oldExchange, Exchange newExchange) {
if (oldExchange == null) {
List<MyDto> dtos = new ArrayList<>();
MyDto MyDto = newExchange.getIn()
.getBody(MyDto.class);
dtos.add(MyDto);
newExchange.getIn().setBody(dtos);
return newExchange;
}
List<MyDto> dtos = castList(MyDto.class,
oldExchange.getIn().getBody(List.class));
MyDto dto = newExchange.getIn()
.getBody(MyDto.class);
dtos.add(dto);
oldExchange.getIn().setBody(dtos);
if (newExchange.getException() != null) {
oldExchange.setException(newExchange.getException());
}
return oldExchange;
}
#Override
public void onCompletion(Exchange exchange) {
LOG.info("test");
/* if (exchange != null && exchange.getException() != null) {
exchange.setProperty(Exchange.EXCEPTION_CAUGHT, exchange.getException());
}*/
}
Update
Came to a conclusion that it would work if I removed streaming() from the outer splitter. Sad as it is not an option for me.