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https://issues.apache.org/jira/browse/TUSCANY-3819?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12986352#action_12986352
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Scott Kurz commented on TUSCANY-3819:
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Added a fix to the bare+Holder along with void return type + Holder in r1063125.
Also added a convenience method to JavaOperation, boolean hasReturnTypeVoid().
> Multiple problems with multiple outputs (Holder support)
> --------------------------------------------------------
>
> Key: TUSCANY-3819
> URL: https://issues.apache.org/jira/browse/TUSCANY-3819
> Project: Tuscany
> Issue Type: Bug
> Components: SCA Java Runtime
> Affects Versions: Java-SCA-2.0-M5
> Reporter: Scott Kurz
> Assignee: Scott Kurz
> Attachments: 3819.1.patch, holder-ws-service-multiple-outputs.zip
>
>
> It seems like there are a few related problems when a Java method has
> multiple outputs, as my test will show.
> I think the history here is:
> - We first added support for using a single Holder parm (with INOUT or OUT)
> but only in the case in which there was only one output altogether, (i.e. the
> return type was void).
> - Brent recently added some support for truly using multiple outputs.
> I'm not sure what if any tests we have though using multiple outputs. For
> example, the test in
> samples/learning-more/binding-ws/holder-ws-service only has a single output.
> However, I do have a guess at how this might have worked at some point (maybe
> for Brent).
> I think if we have a binding/wire configuration which uses
> MediatorImpl.copyInput, etc, it might work with the existing code. However,
> I think when we use the DataTransformationInterceptor which in a typical
> Java<->XML transform uses the Input2InputTransformer, etc., it exposes holes
> in the wrapping that need to be more fully implemented.
> I'll attach a test.
> In the meantime I've assigned to myself as I have started working on a few
> areas including the Input2Input, Output2Output transformers, the JAXWS
> interface processor. Also the wsdlgen will need some tweaking I think.
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