IllegalAnnotationsException "JAXB can't handle interfaces." in BRMS 6.2 decision server

Issue

• After upgrading to BRMS 6.2.0, whenever there is a marker interface as part of facts, we get a JAXB exception as :

org.jboss.resteasy.spi.UnhandledException: org.kie.server.api.marshalling.MarshallingException: Error while creating JAXB context from default classes! 1 counts of IllegalAnnotationExceptions
    org.jboss.resteasy.core.SynchronousDispatcher.handleApplicationException(SynchronousDispatcher.java:367)
    org.jboss.resteasy.core.SynchronousDispatcher.handleException(SynchronousDispatcher.java:235)
    org.jboss.resteasy.core.SynchronousDispatcher.handleInvokerException(SynchronousDispatcher.java:211)
    org.jboss.resteasy.core.SynchronousDispatcher.getResponse(SynchronousDispatcher.java:576)
    org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:543)
    org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:128)
    org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:208)
    org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:55)
    org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:50)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    org.kie.server.services.impl.security.web.CaptureHttpRequestFilter.doFilter(CaptureHttpRequestFilter.java:42)
root cause

org.kie.server.api.marshalling.MarshallingException: Error while creating JAXB context from default classes! 1 counts of IllegalAnnotationExceptions
    org.kie.server.api.marshalling.jaxb.JaxbMarshaller.<init>(JaxbMarshaller.java:208)
    org.kie.server.api.marshalling.MarshallerFactory.getMarshaller(MarshallerFactory.java:39)
    org.kie.server.services.impl.KieContainerInstanceImpl.getMarshaller(KieContainerInstanceImpl.java:111)

Request XML

<batch-execution lookup="defaultSession">
 <insert out-identifier="cust" return-object="true">
    <com.sample.Customer>
      <age>38</age>
    </com.sample.Customer>
    </insert>  
     <fire-all-rules out-identifier="firedActivations"/>
</batch-execution>