JAXB Error : has more than one mapping. Due to two Object Factories with the same Bean

Question

I have two Maven JAXB Projects.

A: Main Maven JAXB stubs XSD project, this contains BASKET.xsd

B: Maven JAXB stubs User-Project that wants to wrap BASKET.xsd in their own Objects.

This results in TWO Objects factories (different packages), both declare the following...

@XmlElementDecl(namespace = "http://www.bob.org/bob/namespace/", name = "Basket")
public JAXBElement<BasketType> createBasket(BasketType value) {
    return new JAXBElement<BasketType>(QNAME, BasketType.class, null, value);
}

This generation is done via this plugin... org.jvnet.jaxb2.maven2 maven-jaxb2-plugin 0.13.2

On application start I get CXF-RT-Frotnend-JaxRS 3.1.11 giving me an error...

017-07-03 14:38:54,613845801: WARN  : [RMI TCP Connection(3)-127.0.0.1] [] org.apache.cxf.jaxrs.utils.ResourceUtils: No JAXB context can be created
com.sun.xml.internal.bind.v2.runtime.IllegalAnnotationsException: 1 counts of IllegalAnnotationExceptions
The element name {http://www.bob.org/bob/namespace/}Basket has more than one mapping.
    this problem is related to the following location:
        at public javax.xml.bind.JAXBElement com.bob.bean.ObjectFactory.createBasket(org.bob.BasketType)
        at com.bob.bean.ObjectFactory
    this problem is related to the following location:
        at public javax.xml.bind.JAXBElement org.userservice.bean.ObjectFactory.createBasket(org.bob.BasketType)

This wasn't an error I got untill I upgraded from CXF 2.7.7 to 3.1.11

Does anyone know if there is a way to get maven-jaxb2-plugin to not generate the method createBasket(..) on the UserService ObjectFactory??

Or to get CXF to accept the two methods, which are identical, on the two ObjectFactoty classes?

Answer 1

My soloution was to change

<property name="singleJaxbContext" value="true"/>

to

<property name="singleJaxbContext" value="false"/>

e.g. in my application-config.xml

  <bean id="jaxbextprovider" class="org.apache.cxf.jaxrs.provider.JAXBElementProvider">
    <property name="singleJaxbContext" value="false"/>
  </bean>