Thomas Sergent created CAMEL-17144:
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             Summary: Split with aggregation strategy does not wait all 
substask to be completed
                 Key: CAMEL-17144
                 URL: https://issues.apache.org/jira/browse/CAMEL-17144
             Project: Camel
          Issue Type: Bug
          Components: camel-core
    Affects Versions: 3.12.0, 3.0.0
            Reporter: Thomas Sergent
         Attachments: test-camel-scheduler.zip

Hi after trying to update from camel 2.25.4 to 3.12 I have a trouble with the 
usage of the split with parallelProcessing enabled. I cannot share my project 
but here is a little sample to reproduce the issue. 

 
{code:java}
from("scheduler:testBug?initialDelay=1000&useFixedDelay=true&delay=5000&greedy=true")
                .to("direct:test");

from("direct:test")
                .log("Before the processor the body must be empty : [${body}]")
                .process((exchange) -> {
                        exchange.getIn().setBody(IntStream.range(0, 
10).mapToObj(i -> "" + i).collect(Collectors.toList()));
                })
                .log("Exchange updated number form 0 to 9 : [${body}]")
                .split(body())
                                .parallelProcessing(true)
                                .log("The child exchange: ${body}")
                .end()

                .log("Split done: [${body}]")
                .setProperty(Exchange.SCHEDULER_POLLED_MESSAGES, 
simple("false"));
{code}
 

With camel 2.25.X the expected behavior (to process each split before returning 
to the caller) is ok but not with the 3.X where the process loop indefinillty. 
 

Note: I have added a kill switch to avoid process to be hanged. 



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