tle="class or interface in java.lang" class="external-link">IllegalArgumentException</a></code> - if <code>tx</code> or <code>id</code> is null</dd>
<dd><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/IllegalArgumentException.html" title="class or interface in java.lang" class="external-link">IllegalArgumentException</a></code> - if this field is a sub-field of a <a href="ComplexField.html" title="class in io.permazen.core"><code>ComplexField</code></a></dd>
</dl>
</sec