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https://issues.apache.org/jira/browse/CAMEL-3917?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13027124#comment-13027124
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Claus Ibsen commented on CAMEL-3917:
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Thanks Aki for looking into this. Yeah those fallback converters is a bit
tricky. You need to return Void.TYPE if you cannot convert it at this given
time, but you may be able to do that later.
> CxfPayloadConverter may start failing to convert a CxfPayload to a Node
> -----------------------------------------------------------------------
>
> Key: CAMEL-3917
> URL: https://issues.apache.org/jira/browse/CAMEL-3917
> Project: Camel
> Issue Type: Bug
> Components: camel-cxf
> Affects Versions: 2.7.1
> Reporter: Aki Yoshida
> Assignee: Claus Ibsen
> Fix For: 2.8.0
>
> Attachments: camel-cxf-20110429-patch.txt
>
> Original Estimate: 1h
> Remaining Estimate: 1h
>
> There is an issue with CxfPayloadConverter that can lead to a failure in
> converting the CxfPayload into something which is actually convertible.
> This problem happens when you try to convert a CxfPayload instance that has
> an empty body list into a Node instance. This returns null and subsequently
> registers this type mapping key (CxfPayload->Node) in
> org.apache.camel.impl.converter.BaseTypeConverterRegistry's conversion-misses
> table. Because of this, a subsequent conversion using a CxfPayload instance
> with an non empty body list will permanently fail.
> I am attaching a modified CxfPayloadConversionTest that includes
> testCxfPayloadToNode that illustrates this problem. Currently, the last
> assertion of this test is failing when this issue is present.
> I think we can fix this problem by returning Void.TYPE instead of a null for
> this case.
> In this way, the conversion is regarded as a success and there will be no
> entry in the conversion-misses table.
> So, I am also attaching the modiefied CxfPayloadConverter class that can
> handle this test case.
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