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<body>
<p>This package contains <code>Realm</code> implementations for the
various supported realm technologies for authenticating users and
identifying their associated roles. The <code>Realm</code> that is
associated with a web application's <code>Context</code> (or a hierarchically
superior Container) is used to resolve authentication and role presence
questions when a web application uses container managed security as described
in the Servlet API Specification.</p>
<p>The implementations share a common base class that supports basic
functionality for all of the standard <code>Realm</code> implementations.</p>
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