   All JAXB 1.0 Providers are required to support this operation.
        </dd>

        <dt><b>On-Demand Validation</b></dt>
        <dd> This form of validation enables a client application to receive 
             information about validation errors and warnings detected in the 
             Java content tree.  At any point, client applications can call
             the <a href="../../../jakarta/xml/bind/Validator.html#validate-java.lang.Object-"><code>Validator.validate</code></a> method
             on