an></dt>
<dd><code>verifier</code> - hostname verifier.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>an updated client builder instance.</dd>
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<h3><a id="executorService(java.util.concurrent.ExecutorService)">executorService</a></h3>
<div class="memberSignature"><span class="modifiers">public abstract</span>&nbsp;<span class="returnType"><a href="ClientBuilder.html" title="class in jakarta.ws.rs.client">ClientBuilder</a></s