title: JSR 303 custom constraint message
body: <p>On a Spring MVC application I've developed a custom JSR 303 constraint as follows:</p>
  
  <pre><code>@Target({ElementType.FIELD, ElementType.METHOD})
  @Retention(RetentionPolicy.RUNTIME)
  @Constraint(validatedBy = {})
  @Pattern(regexp = EmailWithTld.PATTERN, flags = Pattern.Flag.CASE_INSENSITIVE)
  public @interface EmailWithTld {
  
      static final String PATTERN = "(?:[a-z0-9!#$%&amp;'*+/=?^_`{|}~-]+(?:\\.[a-z0-9!#$%&amp;'*+/=?^_`{|}~-]+)*|\"(?:[\\x01-\\x08\\x0b\\x0c\\x0e-\\x1f\\x21\\x23-\\x5b\\x5d-\\x7f]|\\\\[\\x01-\\x09\\x0b\\x0c\\x0e-\\x7f])*\")@(?:(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?|\\[(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?|[a-z0-9-]*[a-z0-9]:(?:[\\x01-\\x08\\x0b\\x0c\\x0e-\\x1f\\x21-\\x5a\\x53-\\x7f]|\\\\[\\x01-\\x09\\x0b\\x0c\\x0e-\\x7f])+)\\])";
  
      String message() default "{springtest.constraints.EmailWithTld.message}";
  
      Class&lt;?&gt;[] groups() default {};
  
      Class&lt;? extends Payload&gt;[] payload() default {};
  
  }
  </code></pre>
  
  <p>The problem is that the message value is ignored, and the message that is displayed on validation error is the one from @Pattern ("must match "(?:[a-z0-9!#$%&amp;.....")</p>
  
  <p>I was expecting it to return my message, from the message variable.</p>
  
  <p>One way i can get a custom message is by replacing the above @Pattern with</p>
  
  <pre><code>@Pattern(message="{springtest.constraints.EmailWithTld.message}", regexp = EmailWithTld.PATTERN, flags = Pattern.Flag.CASE_INSENSITIVE)
  </code></pre>
  
  <p>If I do it this way the correct message does show up, provided I use the resource bundle for setting it. If set via the annotation usage, it does not work. Example:</p>
  
  <pre><code>@Pattern(message="Testing 1 2 3}"
  </code></pre>
  
  <p>What is the correct way to do it?</p>