title: How get messageSource's message if the locale doesn't have a property file?
body: <p>I have defined only french and US english files (<code>messages_en_US.properties</code>, <code>messages_fr.properties</code>). I have also created a bean locale resolver to set the default as en-US:</p>
  
  <pre><code>@Configuration
  public class LocalizationConfig
  {    
      @Bean
      public LocaleResolver getLocaleResolver()
      {
          SessionLocaleResolver resolver = new SessionLocaleResolver();
  
          //Default to the US
          resolver.setDefaultLocale( Locale.US );
  
          return resolver;
      }
  }
  </code></pre>
  
  <p>But when I call the below method, it throws a "NoSuchMessageException":</p>
  
  <pre><code>messageSource.getMessage(
      "test.message",
      new Object[] {},
      Locale.GERMAN
  </code></pre>
  
  <p>);</p>
  
  <p>How do I make it use the default if the locale asked for doesn't exist?</p>