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POJSR 303 custom constraint message
 

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  1. POJSR 303 custom constraint message
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    <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>
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