<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util"><code>Set</code></a> if no links are present. Never returns <code>null</code>.</dd>
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<pre>boolean&nbsp;hasLink(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a