Validation of method params is not internationalized ---------------------------------------------------- Key: WFLY-1722 URL: https://issues.jboss.org/browse/WFLY-1722 Project: WildFly Issue Type: Bug Components: REST Affects Versions: 8.0.0.Alpha3 Reporter: Juergen Zimmermann Assignee: Stuart Douglas When a method of a JAX-RS resource class is invoked due to e.g. a GET or a POST request, then the method's parameters are validated via bean validation. However, the language of violation messages is always the default Locale, and not calculated using the header parameter accept-language, e.g. accept-language=de. http://beanvalidation.org/1.1/spec contains an example for a class LocaleSpecificMessageInterpolator so that validation happens with a dedicated locale.