"Validator.html" title="interface in jakarta.faces.validator"><code>Validator</code></a> implementations must have a zero-arguments public constructor. In addition, if the
 <a href="Validator.html" title="interface in jakarta.faces.validator"><code>Validator</code></a> class wishes to have configuration property values saved and restored with the view, the
 implementation must also implement <a href="../component/StateHolder.html" title="interface in jakarta.faces.component"><code>StateHolder</code></a>.
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