To get easier browser integration, any spring-injected class may be annotated with @BrowserMessages to specify the messages list to add to the i18n file sent to the browser:

@BrowserMessages({ "ie.error", "warning.missingFile" })
public class MyClass {
}

This annotation may be only processed after the first instantiation, in which case it should not be used with Action classes (that will only get instantiated upon first request).

Further testing is required for this.