d identity attributes in a relational database,
 and make that implementation available as an enabled CDI bean.
 <p>
 The container-provided <code>IdentityStore</code> must support validating <a href="../../../../jakarta/security/enterprise/credential/UsernamePasswordCredential.html" title="class in jakarta.security.enterprise.credential"><code>UsernamePasswordCredential</code></a>,
 and may support validating other credential types.</div>
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