Getting error when executing Camel ReST service with both JSON and XML payloads.

Issue

• I am trying to create a Camel ReST service via Java DSL that can consume/produce both json and xml and the JSON works but I receive the following error when I try to retrieve the result in XML:

java.io.IOException: org.apache.camel.InvalidPayloadException: No body available of type: javax.xml.bind.JAXBElement but has value: BaseResponse [isError=false, respMsg=null, respCode=null, transId=null] of type: xyz.abc.GetAssociateByIdResponse on: Message[ID-FEI1006154-64303-1503685576207-19-3]. Exchange[ID-FEI1006154-64303-1503685576207-19-4]
    at org.apache.camel.converter.jaxb.JaxbDataFormat.marshal(JaxbDataFormat.java:153)
    at org.apache.camel.processor.MarshalProcessor.process(MarshalProcessor.java:69)
    at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:109)
    at org.apache.camel.processor.MarshalProcessor.process(MarshalProcessor.java:50)
    at org.apache.camel.processor.binding.RestBindingProcessor$RestBindingMarshalOnCompletion.onAfterRoute(RestBindingProcessor.java:367)
    at org.apache.camel.util.UnitOfWorkHelper.afterRouteSynchronizations(UnitOfWorkHelper.java:154)
    at org.apache.camel.impl.DefaultUnitOfWork.afterRoute(DefaultUnitOfWork.java:273)
    at org.apache.camel.processor.CamelInternalProcessor$RouteLifecycleAdvice.after(CamelInternalProcessor.java:316)
    at org.apache.camel.processor.CamelInternalProcessor$InternalCallback.done(CamelInternalProcessor.java:245)
    at org.apache.camel.processor.Pipeline.process(Pipeline.java:109)
    at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:196)
    at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:109)
    at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:91)
    at org.apache.camel.http.common.CamelServlet.service(CamelServlet.java:143)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:295)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:231)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:149)
    at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:169)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:151)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:97)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:102)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:854)
    at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:656)
    at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:926)
    at java.lang.Thread.run(Thread.java:748)
Caused by: org.apache.camel.InvalidPayloadException: No body available of type: javax.xml.bind.JAXBElement but has value: BaseResponse [isError=false, respMsg=null, respCode=null, transId=null] of type: xyz.abc.GetAssociateByIdResponse on: Message[ID-FEI1006154-64303-1503685576207-19-3]. Exchange[ID-FEI1006154-64303-1503685576207-19-4]
    at org.apache.camel.converter.jaxb.JaxbDataFormat.marshal(JaxbDataFormat.java:216)
    at org.apache.camel.converter.jaxb.JaxbDataFormat.marshal(JaxbDataFormat.java:150)
    ... 27 more