[ https://issues.apache.org/jira/browse/AXIS2-4463?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rich Scheuerle resolved AXIS2-4463.
-----------------------------------

    Resolution: Fixed

> Unreachable code in JAXBAttachmentUnmarshaller
> ----------------------------------------------
>
>                 Key: AXIS2-4463
>                 URL: https://issues.apache.org/jira/browse/AXIS2-4463
>             Project: Axis 2.0 (Axis2)
>          Issue Type: Bug
>          Components: jaxws
>            Reporter: Andreas Veithen
>            Assignee: Rich Scheuerle
>            Priority: Minor
>
> While reviewing some code, I noticed that org.apache.axis2.datasource.jaxb.JAXBAttachmentUnmarshaller contains unreachable code. There are two places where the following if statement is used:
> if (xmlStreamReader instanceof OMXMLStreamReader) {
>     ...
> }
> "xmlStreamReader" is an attribute of JAXBAttachmentUnmarshaller, but this attribute is never initialized and remains null (this is obviously a bug; see code in the constructor). Since "null instanceof X" is always false, the code inside the if statement is unreachable.
> Since this code is related to XOP/MTOM processing, I'm wondering how it is possible that MTOM actually works in JAX-WS (does it?). Also it would be interesting to analyze why this issue doesn't trigger any test failure.

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