block">Create a predicate to test whether the expression is 
 not null.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="Predicate.html" title="interface in jakarta.persistence.criteria">Predicate</a></code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#isNull()" class="member-name-link">isNull</a>()</code></div>
<div class="col-last 