e-tab2 method-summary-table-tab3">
<div class="block">Returns the string value of the associated <code>JsonString</code> mapping
 for the specified name.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>boolean</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#isNull(java.lang.String)" class="member-name-link">isNull</a><wbr>(<a href="htt