@ControllerAdvice
public class GlobalExceptionHandler {
	

	@Inject
	private MessageSource messageSource;


	@ExceptionHandler(MyException.class)
	@ResponseStatus(value = HttpStatus.BAD_REQUEST)
	public HttpErrorMessage errors(MyException ex) {
		String messageKey = ex.getMessageKey();
		if (StringUtils.isEmpty(messageKey)) {
			messageKey = "unknown.error";
		}
		String message = messageSource.getMessage(messageKey, null, Locale.ENGLISH);

		return new HttpErrorMessage(HttpStatus.BAD_REQUEST.name(), HttpStatus.BAD_REQUEST.value(), message);
	}
}

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.1.xsd">

	<bean id="messageSource"
		class="org.springframework.context.support.ReloadableResourceBundleMessageSource">
		<property name="cacheSeconds" value="10" />
		<property name="basename" value="classpath:i18n/messages" />
		<property name="defaultEncoding" value="UTF-8"/>
	</bean>

</beans>

org.springframework.context.NoSuchMessageException: No message found under code 'unknown.error' for locale 'en'.
	at org.springframework.context.support.DelegatingMessageSource.getMessage(DelegatingMessageSource.java:69) ~[spring-context-4.1.2.RELEASE.jar:4.1.2.RELEASE]
	at com.jdev.commons.MyExceptionHandler.myErrors(Wor......
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.7.0_72]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) ~[na:1.7.0_72]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.7.0_72]
	at java.lang.reflect.Method.invoke(Method.java:606) ~[na:1.7.0_72]
	at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:215) ~[spring-web-4.1.2.RELEASE.jar:4.1.2.RELEASE]
	at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132) ~[spring-web-4.1.2.RELEASE.jar:4.1.2.RELEASE]
	at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110) ~[spring-webmvc-4.1.2.RELEASE.jar:4.1.2.RELEASE]
	at org.springframework.web.servlet.mvc.method.annotation.ExceptionHandlerExceptionResolver.doResolveHandlerMethodException(ExceptionHandlerExceptionResolver.java:362) ~[spring-webmvc-4.1.2.RELEASE.jar:4.1.2.RELEASE]
	at org.springframework.web.servlet.handler.AbstractHandlerMethodExceptionResolver.doResolveException(AbstractHandlerMethodExceptionResolver.java:60) [spring-webmvc-4.1.2.RELEASE.jar:4.1.2.RELEASE]
	at org.springframework.web.servlet.handler.AbstractHandlerExceptionResolver.resolveException(AbstractHandlerExceptionResolver.java:138) [spring-webmvc-4.1.2.RELEASE.jar:4.1.2.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.processHandlerException(DispatcherServlet.java:1167) [spring-webmvc-4.1.2.RELEASE.jar:4.1.2.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1004) [spring-webmvc-4.1.2.RELEASE.jar:4.1.2.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:955) [spring-webmvc-4.1.2.RELEASE.jar:4.1.2.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:877) [spring-webmvc-4.1.2.RELEASE.jar:4.1.2.RELEASE]
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:966) [spring-webmvc-4.1.2.RELEASE.jar:4.1.2.RELEASE]
	at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:868) [spring-webmvc-4.1.2.RELEASE.jar:4.1.2.RELEASE]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:641) [servlet-api.jar:na]
	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:842) [spring-webmvc-4.1.2.RELEASE.jar:4.1.2.RELEASE]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:722) [servlet-api.jar:na]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) [catalina.jar:7.0.28]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) [catalina.jar:7.0.28]
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:225) [catalina.jar:7.0.28]
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123) [catalina.jar:7.0.28]
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472) [catalina.jar:7.0.28]
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168) [catalina.jar:7.0.28]
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98) [catalina.jar:7.0.28]
	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927) [catalina.jar:7.0.28]
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) [catalina.jar:7.0.28]
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407) [catalina.jar:7.0.28]
	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1001) [tomcat-coyote.jar:7.0.28]
	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:579) [tomcat-coyote.jar:7.0.28]
	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310) [tomcat-coyote.jar:7.0.28]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [na:1.7.0_72]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [na:1.7.0_72]
	at java.lang.Thread.run(Thread.java:745) [na:1.7.0_72]