d>
<dt>Returns:</dt>
<dd>a zero-length String if value is <code>null</code>, otherwise the result of the conversion</dd>
<dt>Throws:</dt>
<dd><code><a href="ConverterException.html" title="class in jakarta.faces.convert">ConverterException</a></code> - if conversion cannot be successfully performed</dd>
<dd><code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/NullPointerException.html" title="class or interface in java.lang" class="external-link">NullPointerException</a></co