&lt;<a href="../JsonValue.html" title="interface in jakarta.json">JsonValue</a>,&#8203;T,&#8203;<a href="../JsonArray.html" title="interface in jakarta.json">JsonArray</a>&gt;&nbsp;downstream)</code></th>
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<div class="block">Constructs a <code>java.util.stream.Collector</code> that implements a "group by" operation on the
 input <code>JsonValue</code> elements.</div>
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<caption><span>Methods in <a href="../stream/package-summary.html