code: public IJsonMarshaller getJsonMarshaller(Annotation[] annotations) throws JsonMarshallerException {
  		if (annotations != null) {
  			for (Annotation annotation : annotations) {
  				if (JsonUnmarshaller.class.isAssignableFrom(annotation.annotationType())) {
  					return getJsonMarshallerFromAnnotation((JsonUnmarshaller) annotation);
  				}
  			}
  		}
  		return null;
  	}
docs: Return JsonUnmarshaller instance if annotation JsonUnmarshaller is present
  
  @param annotations
  @return
  @throws org.ocelotds.marshalling.exceptions.JsonMarshallerException