*/
    public GroupPager() {
        // Default constructor
    }

    /**
     * Clears all pagination data and search criteria, resetting the pager to its initial state.
     * This method resets record counts, pagination flags, and search parameters to their default values.
     */
    public void clear() {
        allRecordCount = 0;
        allPageCount = 0;
        existPrePage = false;

    ImmutableSortedSet<Integer> set = ContiguousSet.create(Range.closed(1, 3), integers());
    for (Set<Integer> subset : Sets.powerSet(ImmutableSet.of(1, 2, 3))) {
      assertTrue(set.containsAll(subset));
    }
    for (Set<Integer> subset : Sets.powerSet(ImmutableSet.of(1, 2, 3))) {
      assertFalse(set.containsAll(Sets.union(subset, ImmutableSet.of(9))));
    }
  }

     */
    public long getNextSequenceNumber() {
        return sequenceNumber.incrementAndGet();
    }

    /**
     * Updates the heartbeat timestamp to current time and resets failure count.
     */
    public void updateHeartbeat() {
        this.lastHeartbeat = System.currentTimeMillis();
        this.heartbeatFailures = 0;
    }

    /**

    /**
     * Creation time of the crawling information.
     */
    public String createdTime;

    /**
     * Clears all pagination state and crawling information fields.
     * Resets all counts, page flags, and crawling-specific fields to their default values.
     */
    public void clear() {
        allRecordCount = 0;
        allPageCount = 0;
        existPrePage = false;

     */
    public DuplicateHostPager() {
        // Default constructor with explicit documentation
    }

    /**
     * Clears all paging state and search/filter parameters.
     * Resets the pager to its initial state with default values.
     */
    public void clear() {
        allRecordCount = 0;
        allPageCount = 0;
        existPrePage = false;
        existNextPage = false;

    /**
     * Default constructor for creating a new SearchLogPager instance.
     */
    public SearchLogPager() {
        // Default constructor
    }

    /**
     * Clears all filter criteria and resets pagination to default values.
     */
    public void clear() {
        allRecordCount = 0;
        allPageCount = 0;
        existPrePage = false;
        existNextPage = false;

import static com.google.common.collect.Iterators.emptyIterator;
import static com.google.common.collect.Sets.difference;
import static com.google.common.collect.Sets.intersection;
import static com.google.common.collect.Sets.newHashSet;
import static com.google.common.collect.Sets.symmetricDifference;
import static com.google.common.collect.Sets.union;
import static com.google.common.truth.Truth.assertThat;
import static java.util.Arrays.asList;

    ImmutableSortedSet<Integer> set = ContiguousSet.create(Range.closed(1, 3), integers());
    for (Set<Integer> subset : Sets.powerSet(ImmutableSet.of(1, 2, 3))) {
      assertTrue(set.containsAll(subset));
    }
    for (Set<Integer> subset : Sets.powerSet(ImmutableSet.of(1, 2, 3))) {
      assertFalse(set.containsAll(Sets.union(subset, ImmutableSet.of(9))));
    }
  }

        assertFalse(auth.isAnonymous());
        assertFalse(auth.isGuest());
    }

    @ParameterizedTest
    @EnumSource(SubjectVariant.class)
    @DisplayName("getSubject: caches results and refresh resets cache")
    void testGetSubjectLoginFailuresCacheAndRefresh(SubjectVariant variant) throws Exception {
        JAASAuthenticator auth = buildAuthenticator(variant);

    ImmutableSortedSet<Integer> asSet = RANGE_SET_ONE.asSet(DiscreteDomain.integers());
    assertEquals(expectedSet, asSet);
    assertThat(asSet).containsExactlyElementsIn(expectedSet).inOrder();
    assertTrue(asSet.containsAll(expectedSet));
    SerializableTester.reserializeAndAssert(asSet);
  }

  public void testAsSetHeadSet() {