JSON Marshaller does not respect JAXB annotations

Issue

When using the JSON Marshaller to construct a payload to create a BPM process, then the JAXB annotations are not respected.

Using this method:

public String createBPM(ProcessorData data) {

    HashSet<Class<?>> classes = new HashSet<Class<?>>();
    classes.add(ProcessorData.class);

    Marshaller marshaller = MarshallerFactory.getMarshaller(classes, MarshallingFormat.JSON, getClass().getClassLoader());

    Map<String, Object> map = new HashMap<String, Object>();
    map.put("inProcessorData", data);

    return marshaller.marshall(map);
}

Produces a payload where JAXB annotations inside ProcessorData are simply not present. For example, if JAXB annotation is overriding an attribute name, then this attribute name won't be changed in the final JSON payload.