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https://issues.apache.org/jira/browse/CXF-3836?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13147538#comment-13147538
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Freeman Fang commented on CXF-3836:
-----------------------------------
Hi,
I just write a testcase which can verify null value for output Holder parameter
works, so I believe this issue already get resolved after CXF 2.4.2, I'll
commit the testcase soon.
Could you run your test with latest released CXF 2.4.4 or even CXF 2.5?
Freeman
> Missing output parameters in wrapped method implementations generate NPE
> ------------------------------------------------------------------------
>
> Key: CXF-3836
> URL: https://issues.apache.org/jira/browse/CXF-3836
> Project: CXF
> Issue Type: Bug
> Components: JAX-WS Runtime
> Affects Versions: 2.3.6, 2.4.2
> Reporter: Scott S. McCoy
> Assignee: Freeman Fang
>
> When implementing an interface generated from a WSDL which has an output
> parameter stored in a holder, as in
> {code}
> @WebParam(mode = WebParam.Mode.OUT, name = "created", targetNamespace
> = "")
> javax.xml.ws.Holder<java.lang.Boolean> created
> {code}
> Failing to provide a value in the supplied holder results in an NPE,
> originating from the runtime-generated WrapperTypeHelper class, e.g.
> {code}
> java.lang.NullPointerException
> at
> com.vindicia.soap.v3_6.account.UpdateResponse_WrapperTypeHelper1.createWrapperObject(Unknown
> Source)
> at
> org.apache.cxf.jaxws.interceptors.WrapperClassOutInterceptor.handleMessage(WrapperClassOutInterceptor.java:105)
> {code}
> This fails to inform the user of the cause of the issue or how to diagnose
> it. Instead, required parameters should be validated to atleast be not null
> before they are assumed to have been provided.
> I have validated this behavior on 2.4.2, 2.4.0 and 2.3.6.
> The work-around for the user is of course to provide a non-null value in the
> holder object.
> It is worth noting this appears to only happen for output parameters that are
> normally mapped to primitive types.
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