/String.html?is-external=true" title="class or interface in java.lang" class="externalLink">String</a>[]</span>&nbsp;<span class="memberName">getRegistrationIDs</span>&#8203;(<span class="arguments"><a href="AuthConfigProvider.html" title="interface in jakarta.security.auth.message.config">AuthConfigProvider</a>&nbsp;provider)</span></div>
<div class="block">Get the registration identifiers for all registrations of the provider instance at the factory.</div>
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<dt><span class="paramLabel">Parameters:</sp