Mule not displaying/reading custom messages from ReloadableResourceBundles - spring

Question

I can't figure out how to get my custom message from the Spring Errors object. It seems like I have stuff wired up properly. I've seen examples where the default message is actually the custom message, but that seems a hack and contrary to the documentation.
As I understand it, using ValidationUtils, I could have the following:
ValidationUtils.rejectIfEmpty(errors, "myfield", "myfield.required", "Column 'myfield' is required.");
I also think I understand that the second parameter "myfield.required" is in essence the key to a properties file entry.
So, I have this properties file sitting my src/main/resouces folder named validation-messages_en_US.properties with this entry:
myfield.required=Column 'myfield' is a custom message !
My Spring Bean definition:
<spring:beans>
<context:component-scan base-package="com.mycompany.myproject" />
<spring:bean id="messageSource" name="messageSource" class="org.springframework.context.support.ReloadableResourceBundleMessageSource">
<spring:property name="basenames" value="classpath:validation-messages"/>
</spring:bean>
</spring:beans>
My Validator:
import java.util.List;
import org.apache.log4j.Logger;
import org.mule.api.annotations.param.Payload;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.MessageSource;
import org.springframework.stereotype.Component;
import org.springframework.validation.BeanPropertyBindingResult;
import org.springframework.validation.Errors;
import org.springframework.validation.FieldError;
import org.springframework.validation.ObjectError;
import org.springframework.validation.ValidationUtils;
import org.springframework.validation.Validator;
import com.mycompany.myproject.vsd.request.VSDRequest;
#Component
public class VSDRequestValidator implements Validator {
private static final Logger logger = Logger.getLogger(VSDRequestValidator.class);
#Autowired
private MessageSource messageSource;
#Override
public boolean supports(Class<?> clazz) {
return VSDRequest.class.isAssignableFrom(clazz);
}
#Override
public void validate(Object object, Errors errors) {
VSDRequest request = (VSDRequest) object;
ValidationUtils.rejectIfEmpty(errors, "myfield", "myfield.required", "Column 'myfield' is required.");
if (errors.hasErrors()) {
List<ObjectError> objErrors = errors.getAllErrors();
for (ObjectError e : objErrors) {
logger.info(e.getDefaultMessage());
}
}
}
/**
* Receive <code>payload</code> to perform validations on.
*
* #param object
*/
public void validate(#Payload Object object) {
if (object == null) {
throw new IllegalArgumentException("The supplied [Validator] is required and must not be null.");
}
if (!supports(object.getClass())) {
throw new IllegalArgumentException("The supplied [Validator] must support the validation of [VSDRequest] instances.");
}
BeanPropertyBindingResult errors = new BeanPropertyBindingResult((VSDRequest) object, "VSDRequest");
logger.info(messageSource.getMessage("myfield.required", null, null)); // This get the message I want
validate(object, errors);
}
}
My MessageSource properly injects. I injected it into my class just to check it and know it's being recognized. I shouldn't even need to do that if Spring is reading the ReloadableResourceBundle.
Does the getDefaultMessage() return either the custom message or the default message? Maybe I'm looking at this all wrong?