 (possibly empty) <code>Collection</code> of the values of the header with the given name</dd>
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<h4>getHeaderNames</h4>
<pre class="methodSignature"><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Collection.html?is-external=true" title="class or interface in java.util" class="externalLink">Collection</a>&lt;<a href="https://docs.oracle.com/en/java/javase/11/docs/api/j