*
   * <p>Among the improvements that this method and {@code LoadingCache.get(K)} both provide are:
   *
   * <ul>
   *   <li>{@linkplain LoadingCache#get(Object) awaiting the result of a pending load} rather than
   *       starting a redundant one
   *   <li>eliminating the error-prone caching boilerplate
   *   <li>tracking load {@linkplain #stats statistics}
   * </ul>
   *

 *
 * <p>For instance, if <i>steps</i> is 5, one example sequence that will be tested is:
 *
 * <ol>
 *   <li>remove();
 *   <li>hasNext()
 *   <li>hasNext();
 *   <li>remove();
 *   <li>next();
 * </ol>
 *
 * <p>This particular order of operations may be unrealistic, and testing all 3^5 of them may be

     * <ul>
     *   <li>If it starts with either "pom." or "project.", the expression is evaluated against the model.</li>
     *   <li>If the value is null, get the value from the context.</li>
     *   <li>If the value is null, but the context contains the expression, don't replace the expression string
     *       with the value, and continue to find other expressions.</li>

 *
 * <p>Key features include:</p>
 * <ul>
 * <li>Incremental crawling support with last-modified timestamp checking</li>
 * <li>Document expiration handling</li>
 * <li>Child URL extraction and queueing</li>
 * <li>Integration with Fess configuration and permission systems</li>
 * <li>Client selection based on URL patterns</li>
 * </ul>
 *
 * @see CrawlerThread

                                <li role="presentation" class="nav-item"><a href="#remote" aria-controls="remote" class="nav-link active"
                                                                          role="tab"
                                                                          data-toggle="tab"
                                ><la:message key="labels.plugin_remote_install"/></a></li>

         * True if, and only if, Docker is:
         * <ul>
         *     <li>Installed</li>
         *     <li>Executable</li>
         *     <li>Is at least version compatible with minimum version</li>
         *     <li>Can execute a command that requires privileges</li>
         * </ul>
         */
        public final boolean isAvailable;

        /**

                            <li class="breadcrumb-item"><la:link href="list">
                                <la:message key="labels.elevate_word_link_list"/>
                            </la:link></li>
                            <li class="breadcrumb-item active"><la:message
                                    key="labels.elevate_word_link_details"/></li>
                        </ol>
                    </div>

                            <li class="breadcrumb-item"><la:link href="/admin/wizard/">
                                <la:message key="labels.wizard_start_title"/>
                            </la:link></li>
                            <li class="breadcrumb-item active"><la:message
                                    key="labels.wizard_crawling_config_title"/></li>
                        </ol>
                    </div>

/**
 * Transforms userguide source into docbook, replacing custom XML elements.
 *
 * Takes the following as input:
 * <ul>
 * <li>A source docbook XML file.</li>
 * <li>Meta-info about the canonical documentation for each class referenced in the document, as produced by {@link gradlebuild.docs.dsl.docbook.AssembleDslDocTask}.</li>
 * </ul>
 *
 */
@CacheableTask
abstract class UserGuideTransformTask extends DefaultTask {

 *
 * <ul>
 *   <li>Memory footprint has a fixed overhead (about 24 bytes per instance).
 *   <li><i>Some</i> construction use cases force the data to be copied (though several construction
 *       APIs are offered that don't).
 *   <li>Can't be passed directly to methods that expect {@code double[]} (though the most common
 *       utilities do have replacements here).
 *   <li>Dependency on {@code com.google.common} / Guava.