Missing output parameters in wrapped method implementations generate NPE
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Key: CXF-3836
URL: https://issues.apache.org/jira/browse/CXF-3836
Project: CXF
Issue Type: Bug
Components: JAX-WS Runtime
Affects Versions: 2.4.2, 2.3.6
Reporter: Scott S. McCoy
When implementing an interface generated from a WSDL which has an output
parameter stored in a holder, as in
{{{
@WebParam(mode = WebParam.Mode.OUT, name = "created", targetNamespace =
"")
javax.xml.ws.Holder<java.lang.Boolean> created
}}}
Failing to provide a value in the supplied holder results in an NPE,
originating from the runtime-generated WrapperTypeHelper class, e.g.
{{{
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)
}}}
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.
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