checkNotNull(valueFunction);
    checkNotNull(mergeFunction);
    return Collectors.collectingAndThen(
        Collectors.toMap(
            keyFunction, valueFunction, mergeFunction, () -> new TreeMap<K, V>(comparator)),
        ImmutableSortedMap::copyOfSorted);
  }

  // unsafe, comparator() returns a comparator on the specified type
  @SuppressWarnings("unchecked")
  public static <K, V> ImmutableSortedMap<K, V> of() {

 */
package org.codelibs.fess.app.web.admin.relatedquery;

import static org.codelibs.core.stream.StreamUtil.split;
import static org.codelibs.core.stream.StreamUtil.stream;

import java.util.stream.Collectors;
import java.util.stream.Stream;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.beans.util.BeanUtil;
import org.codelibs.core.lang.StringUtil;

 */
package org.codelibs.fess.app.web.api.admin.pathmap;

import static org.codelibs.fess.app.web.admin.pathmap.AdminPathmapAction.getPathMapping;

import java.util.List;
import java.util.stream.Collectors;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.fess.Constants;
import org.codelibs.fess.app.pager.PathMapPager;

 */
package org.codelibs.fess.app.web.api.admin.relatedcontent;

import static org.codelibs.fess.app.web.admin.relatedcontent.AdminRelatedcontentAction.getRelatedContent;

import java.util.List;
import java.util.stream.Collectors;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.fess.app.pager.RelatedContentPager;
import org.codelibs.fess.app.service.RelatedContentService;

import static org.codelibs.fess.app.web.admin.group.AdminGroupAction.getGroup;
import static org.codelibs.fess.app.web.admin.group.AdminGroupAction.validateAttributes;

import java.util.List;
import java.util.stream.Collectors;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.fess.app.pager.GroupPager;
import org.codelibs.fess.app.service.GroupService;

 */
package org.codelibs.fess.app.web.api.admin.boostdoc;

import static org.codelibs.fess.app.web.admin.boostdoc.AdminBoostdocAction.getBoostDocumentRule;

import java.util.List;
import java.util.stream.Collectors;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.beans.util.CopyOptions;
import org.codelibs.fess.app.pager.BoostDocPager;

import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import java.util.regex.Pattern;
import java.util.stream.Collectors;

import org.codelibs.fess.crawler.entity.OpenSearchUrlFilter;
import org.codelibs.fess.crawler.exception.CrawlerSystemException;
import org.codelibs.fess.crawler.service.UrlFilterService;

 */
package org.codelibs.fess.app.web.admin.labeltype;

import static org.codelibs.core.stream.StreamUtil.split;
import static org.codelibs.core.stream.StreamUtil.stream;

import java.util.stream.Collectors;
import java.util.stream.Stream;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.lang.StringUtil;
import org.codelibs.fess.Constants;

                nameList.add(value);
            } else {
                versionList.add(value);
            }
        }
        return new Artifact(nameList.stream().collect(Collectors.joining("-")), versionList.stream().collect(Collectors.joining("-")), url);
    }

    /**
     * Installs an artifact based on its type.
     *
     * @param artifact the artifact to install
     */

  private final BiPredicate<? super R, ? super R> equivalence;

  private CollectorTester(
      Collector<T, A, R> collector, BiPredicate<? super R, ? super R> equivalence) {
    this.collector = checkNotNull(collector);
    this.equivalence = checkNotNull(equivalence);
  }

  /**
   * Different orderings for combining the elements of an input array, which must all produce the
   * same result.
   */