[CXF-2779] CXF ignores @XmlAttribute when serializing exception

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Invalid
• Affects Version/s: 2.2.7
• Fix Version/s: Invalid
• Component/s: JAXB Databinding
• Assignee: Daniel Kulp
• Reporter: Graham Charters
• Created: 22/Apr/10 09:56
• Updated: 26/Oct/11 17:12
• Resolved: 01/Sep/11 16:42

Description

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 says:

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:

@XmlRootElement
class Bean {
  @XmlAttribute("sample-field")
  private String _myField;
}

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.