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https://issues.apache.org/jira/browse/AXIS2-3476?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aaron Gourley updated AXIS2-3476:
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Attachment: CustomMessage.wsdl
Sample WSDL exploiting the deficiency. Notice that the startSetCustomMessage()
method does not make use of the CustomMessageServiceCallbackHandler instance,
making it impossible for the business logic to be informed of faults or
completion.
> Client-side processing of asynchronous requests with void return type is
> flawed.
> --------------------------------------------------------------------------------
>
> Key: AXIS2-3476
> URL: https://issues.apache.org/jira/browse/AXIS2-3476
> Project: Axis 2.0 (Axis2)
> Issue Type: Bug
> Components: codegen
> Affects Versions: 1.4, 1.3, 1.2
> Environment: Axis2 1.3, Java 6, Windows XP
> Reporter: Aaron Gourley
> Attachments: CustomMessage.wsdl
>
>
> Root of problem is in
> modules/codegen/src/org/apache/axis2/wsdl/template/java/InterfaceImplementation.xsl,
> near the following block of code:
> <xsl:when test="$outputtype=''">
> // Nothing to pass as the callback!!!
> </xsl:when>
> Due to the fact that the startXXX() methods don't register a callback in the
> operationClient for void methods, generated client stubs are produced in such
> a way that there is no way for the client application to have itself notified
> upon request completion (whether on error, fault, or otherwise). The client
> is left in limbo.
> Along with a fix for this issue I believe that a change has to be made to the
> CallbackHandlerTemplate.xsl file so that generated callback handlers support
> some sort of onComplete() derivation (such as receiveCompleteXXX). The
> reason being is that for void methods there is no way for a client
> application using the generated stub code to be notified when a void method
> completes successfully. This way, the generated Axis2Callback within the
> stub code would be able to call the new onComplete() style method in the
> CallbackHandler, allowing the client app to know when execution is complete.
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