Description of problem:

I have following REST server:

<cxf:rsServer
    id="rsJaxbServer"
    address="http://localhost:58003/restjaxb"
    serviceClass="org.kie.jax.rs.CommandExecutorImpl">
    <cxf:providers>
      <bean class="org.kie.jax.rs.CommandMessageBodyReader" />
    </cxf:providers>
  </cxf:rsServer>

for that I've created this camel route:

<route id="restJaxbGW">
  <from uri="cxfrs://bean://rsJaxbServer"/>
  <policy ref="kiePolicy">
    <unmarshal ref="jaxb" /> // here is the problem
    <to uri="kie:ksession1"/>
    <marshal ref="jaxb" />
   </policy>
</route>

The source code of KiePolicy counts on the jaxb. https://github.com/droolsjbpm/droolsjbpm-integration/blob/master/kie-camel/src/main/java/org/kie/camel/component/KiePolicy.java#L154

When I run any request, I receive:

javax.xml.bind.JAXBException: Provider com.sun.xml.bind.v2.ContextFactory could not be instantiated: javax.xml.bind.JAXBException: "null" doesnt contain ObjectFactory.class or jaxb.index

this is obvious because I should define something like:

<dataFormats>
  <jaxb id="jaxbCommands" prettyPrint="true" contextPath="org.drools.core.command"/>
</dataFormats>

but in the package "org.drools.core.command" there must be the jaxb.index or ObjectFactory as I understand. There should be the same classes as defined here https://github.com/droolsjbpm/droolsjbpm-integration/blob/6.0.x/kie-remote/kie-services-client/src/main/java/org/kie/services/client/serialization/jaxb/impl/JaxbCommandsRequest.java

It might be possible to have the classes just in the jaxb.index.