private static class CustomQuery extends Query {
        @Override
        public String toString(String field) {
            return "CustomQuery";
        }

        @Override
        public boolean equals(Object obj) {
            return obj != null && getClass() == obj.getClass();
        }

        @Override
        public int hashCode() {
            return getClass().hashCode();
        }

        String serverAddress = registration.getServerAddress() != null ? registration.getServerAddress().getHostAddress() : null;
        boolean addressMatch = java.util.Objects.equals(resourceName, serverAddress);

        return shareMatch || addressMatch;
    }

    /**
     * Checks for expired registrations based on heartbeat timeouts.
     */
    private void checkHeartbeats() {

 * Comparator} or {@link Comparable} type whose comparison behavior is <i>inconsistent with
 * equals</i>. That is, {@code a.compareTo(b)} or {@code comparator.compare(a, b)} should equal zero
 * <i>if and only if</i> {@code a.equals(b)}. If this advice is not followed, the resulting
 * collection will not correctly obey its specification.
 *
 * <p>See the Guava User Guide article on <a href=

 * with {@link Collection} itself). Prefer subtypes such as {@link ImmutableSet} or {@link
 * ImmutableList}, which have well-defined {@link #equals} semantics, thus avoiding a common source
 * of bugs and confusion.
 *
 * <h3>About <i>all</i> {@code Immutable-} collections</h3>
 *

   * {@code strictfp}-like semantics.)
   */
  @Override
  public boolean equals(@Nullable Object obj) {
    if (obj == null) {
      return false;
    }
    if (getClass() != obj.getClass()) {
      return false;
    }
    Stats other = (Stats) obj;
    return count == other.count
        && doubleToLongBits(mean) == doubleToLongBits(other.mean)

 *
 * <p>Each of the {@code standard} methods uses the set's comparator (or the natural ordering of the
 * elements, if there is no comparator) to test element equality. As a result, if the comparator is
 * not consistent with equals, some of the standard implementations may violate the {@code Set}
 * contract.
 *
 * <p>The {@code standard} methods and the collection views they return are not guaranteed to be

     */
    public static boolean getBoolean(final Properties props, final String key, boolean def) {
        final String b = props.getProperty(key);
        if (b != null) {
            def = b.toLowerCase().equals("true");
        }
        return def;
    }

    /**
     * Retrieve an array of <code>InetAddress</code> created from a property

            d.setGroupId(groupId);
            d.setArtifactId(artifactId);
            d.setVersion(version);
            d.setScope(scope);

            if (systemPath != null && scope.equals(Artifact.SCOPE_SYSTEM)) {
                d.setSystemPath(systemPath);
            }

            if (exclusion != null) {
                d.addExclusion(exclusion);
            }

          .put(com.google.common.base.Optional.class, com.google.common.base.Optional.absent())
          .put(Predicate.class, Predicates.alwaysTrue())
          .put(Equivalence.class, Equivalence.equals())
          .put(Ticker.class, Ticker.systemTicker())
          .put(Stopwatch.class, Stopwatch.createUnstarted())
          // io types
          .put(InputStream.class, new ByteArrayInputStream(new byte[0]))

            boolQuery.should(query);
        }
        return boolQuery;
    }

    private QueryBuilder simpleQuery(String query, float titleBoost, float contentBoost) {
        if ("dismax".equals(ComponentUtil.getFessConfig().getQueryDefaultQueryType())) {
            return QueryBuilders.disMaxQuery()
                    .tieBreaker(0.1f)//