Tomas Hanus created CAMEL-7946:
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             Summary: Backward compatibility of RoutingSlip/RecipientList 
statement is violated
                 Key: CAMEL-7946
                 URL: https://issues.apache.org/jira/browse/CAMEL-7946
             Project: Camel
          Issue Type: Bug
    Affects Versions: 2.13.2
            Reporter: Tomas Hanus


Currently we fixed issue in production of route that uses routingSlip statement 
for dynamic resolution of endpoint. This route is synchronous when next 
endpoint expects some result from previous endpoint that was resolved by 
routingSlip. Problem is, and we don't know how long (camel version), that 
without explicit statement which defines ExchangePattern as *InOut* before 
using routingSlip unexpected behaviour occurs.

*wrong approach*:
.recipientList(method(MyRoute.class, "getUri")).id(ENDPOINT_ID_EXT);

*correct behaviour*:
// for request/reply
.setExchangePattern(ExchangePattern.InOut)
.recipientList(method(MyRoute.class, "getUri")).id(ENDPOINT_ID_EXT);

Because this change is *not backwards compatible* and has a very unexpected 
behavior and this issue is difficult to identify.



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