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From "Claus Ibsen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CAMEL-4401) StreamResequencer poisoned by bad Exchange
Date Tue, 13 Sep 2011 13:03:08 GMT

    [ https://issues.apache.org/jira/browse/CAMEL-4401?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13103605#comment-13103605
] 

Claus Ibsen commented on CAMEL-4401:
------------------------------------

David do you have an unit test reproducing this issue?

> StreamResequencer poisoned by bad Exchange
> ------------------------------------------
>
>                 Key: CAMEL-4401
>                 URL: https://issues.apache.org/jira/browse/CAMEL-4401
>             Project: Camel
>          Issue Type: Bug
>          Components: camel-core
>    Affects Versions: 2.7.1
>         Environment: JDK 1.6.0_20, Linux x86_64
>            Reporter: David Tombs
>            Priority: Minor
>
> If a StreamResequencer's configured Expression returns null for an Exchange (e.g., if
a header does not exist) and the resequencer's pipeline is currently empty, the bad Exchange
will be added to the pipeline. ResequencerEnginer.insert() succeeds in calling sequence.add()
with the bad Exchange, but throws an Exception when calling sequence.successor(). This results
in the message ending up at the Error Handler but the bad Exchange still in the Engine's sequence.
Probably insert() should be probably be more transactional.
> After this happens:
> 1) Trying to add a further exchange (even a "good" one) results in an Exception when
calling sequence.add().
> 2) ResequencerEngine.deliverNext() results in an Exception so no further messages will
be delievered.
> I will attach a unit test to reproduce when I get a chance.

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