it will be reduced to
        <code>cacheMaxSize/20</code>. This value may be changed while the web
        application is running (e.g. via JMX).</p>
      </td></tr><tr><td><code class="attributeName">cacheTtl</code></td><td>
        <p>The amount of time in milliseconds between the revalidation of cache
        entries. If not specified, the default value is <code>5000</code> (5
        seconds). This value may be changed while the web application is running
        (e.g. via JMX). When a resource is cac