[jira] [Resolved] (CXF-2779) CXF ignores @XmlAttribute when serializing exception

["Daniel Kulp (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CXF-2779?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Daniel Kulp resolved CXF-2779.
------------------------------

       Resolution: Invalid
    Fix Version/s: Invalid
         Assignee: Daniel Kulp


I did fix the issue of using getField instead of getDeclaredField.

HOWEVER, the @XmlAttribute thing is not fixed as it would be against the JAX-WS spec and introduce differences in behavior between CXF and other JAX-WS implementations (including the reference implementation).   If you want/need information to be in attributes, you must use a fault bean and use the getFaultInfo way of doing it.

> CXF ignores @XmlAttribute when serializing exception
> ----------------------------------------------------
>
>                 Key: CXF-2779
>                 URL: https://issues.apache.org/jira/browse/CXF-2779
>             Project: CXF
>          Issue Type: Bug
>          Components: JAXB Databinding
>    Affects Versions: 2.2.7
>            Reporter: Chris Wilson
>            Assignee: Daniel Kulp
>             Fix For: Invalid
>
>         Attachments: CxfExceptionFieldPropagationTest.java, CxfExceptionFieldPropagationTest.java
>
>
> JAXBEncoderDecoder#unmarshallException} doesn't normally write to private fields, so exception data isn't propagated, unless:
> * either the {@link @XmlAccessorType} annotation is present on the class and used to set the default access method to something other than the default XmlAccessType#PUBLIC_MEMBER,
> * or the {@link XmlAttribute} annotation is present on the individual private members that you want to be serialized.
> The [Caucho documentation|http://www.caucho.com/resin-3.1/doc/jaxb-annotations.xtp#@XmlAttribute] says:
> bq. Adding @XmlAttribute to a private field will mark that field as serializable.
> and they give the following example which clearly implies that no accessors are required:
> {code}
> @XmlRootElement
> class Bean {
>   @XmlAttribute("sample-field")
>   private String _myField;
> }
> {code}
> Nevertheless:
> * JAXBEncoderDecoder#marshallException calls org.apache.cxf.jaxb.JAXBContextInitializer#isFieldAccepted to see whether the field should be copied
> * that method fails to check for the XmlAttribute annotation on the field
> * so its value is never serialized or deserialized
> and the attached test case fails unless:
> * either a public getter and setter are provided to turn the field into a property, 
> * or the access type is changed to something other than PUBLIC_MEMBER.

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