Spring i18n question marks instead of text

I hava i18n, but experience problems with russian letters. I have question marks ????? instead of text. Configuration:

@Bean
public LocaleResolver localeResolver(){
    CookieLocaleResolver resolver = new CookieLocaleResolver();
    resolver.setDefaultLocale(new Locale("ru"));
    resolver.setCookieName("locale");
    resolver.setCookieMaxAge(60 * 60 * 24 * 365 * 10);
    return resolver;
}

@Bean
public LocaleChangeInterceptor localeChangeInterceptor() {
    LocaleChangeInterceptor changeInterceptor = new LocaleChangeInterceptor();
    changeInterceptor.setParamName("lang");
    return changeInterceptor;
}

@Bean
public MessageSource messageSource() {
    ReloadableResourceBundleMessageSource messageSource = new ReloadableResourceBundleMessageSource();
    messageSource.setBasename("classpath:/i18n/messages");
    messageSource.setDefaultEncoding("UTF-8");
    return messageSource;
}

@Override
public void addInterceptors(InterceptorRegistry registry) {
    registry.addInterceptor(localeChangeInterceptor());
}

Also I am using Thymeleaf.

<h1 th:text="#{message}"></h1>