Spring validation can't find message -

i have problem validation in springmvc, can't find error messages...
have error says: no message found under code 'empty' locale 'en_gb'. if configured in messages.properties.

i have configured in spring context servlet:

<beans:bean id="messagesource"     class="org.springframework.context.support.reloadableresourcebundlemessagesource">     <beans:property name="basename">             <beans:value>web-inf/classes/messages</beans:value>     </beans:property> </beans:bean> 

in project file under src/main/resources/messages.properties, , is:

empty.user.password=il campo password non può essere lasciato vuoto empty.user.username=il campo username non può essere lasciato vuoto unique.user.username=l''username {0} è già usato empty=il campo non può essere vuoto 

then have validator:

@override public void validate(object target, errors errors) {     final user user = (user) target;     validationutils.rejectifemptyorwhitespace(errors, "username", "empty");     validationutils.rejectifemptyorwhitespace(errors, "password", "empty");     if (userrepository.findbyusername(user.getusername()) != null){         errors.rejectvalue("username", "unique", new object[]{user.getusername()}, "the username exists");     } } 

and in jsp:

<form:errors path="*" cssclass="alert error" element="div" /> 

i can't figure out can problem...

update: noticed deploying application in tomcat inside eclipse works...it has problem when execute using maven both jetty:run , tomcat:run

have checked if messages.prop file getting copied on under classes directory

hth