SortedSet<String> set = new SafeTreeSet<>();
    set.add("e");
    SortedSet<String> copy = SerializableTester.reserializeAndAssert(set);
    assertEquals(set.comparator(), copy.comparator());
  }

  @GwtIncompatible // SerializableTester
  public void testSeveral_serialization() {
    SortedSet<String> set = new SafeTreeSet<>();
    set.add("a");
    set.add("b");
    set.add("c");

        createTestIndex();

        List<String> results = ScrollOperationHelper.scrollSearch(client, suggester.settings(), INDEX_NAME, QueryBuilders.matchAllQuery(),
                10, (hit, accumulator) -> accumulator.add(hit.getId()));

        assertNotNull(results);
        assertTrue(results.isEmpty());
    }

    @Test
    public void testScrollSearch_singlePage() {
        createTestIndex();
        indexDocuments(5);

        assertNull(sentIndex.get());

        sentIndex.set(null);
        sentDocList.clear();
        docList.add(new HashMap<>(Map.of(//
                "_id", "001", //
                "config_id", "W01", //
                "url", "http://test.com/001"//
        )));
        docList.add(new HashMap<>(Map.of(//
                "_id", "002", //
                "thumbnail", "http://test.com/002", //

        DefaultProblemCollector collector = new DefaultProblemCollector(null);

        collector.add(null, "PROBLEM1", -1, -1, null);

        collector.setSource("SOURCE_PROBLEM2");
        collector.add(null, "PROBLEM2", -1, -1, null);

        collector.setSource("SOURCE_PROBLEM3");
        collector.add(null, "PROBLEM3", -1, -1, null);

        assertEquals("", collector.getProblems().get(0).getSource());

    public void neitherOverriddenNorAnnotated(Object o) {
      neitherOverriddenNorAnnotatedEvents.add(o);
    }

    public void overriddenInSubclassNowhereAnnotated(Object o) {
      overriddenInSubclassNowhereAnnotatedEvents.add(o);
    }

    public void overriddenAndAnnotatedInSubclass(Object o) {
      overriddenAndAnnotatedInSubclassEvents.add(o);
    }
  }

  static class SubClass extends SuperClass {
    @Override

        Artifact l = createRemoteArtifact("l", "1.0-SNAPSHOT");
        deleteLocalArtifact(l);

        List<ArtifactRepository> repositories = new ArrayList<>();
        repositories.add(remoteRepository());
        repositories.add(badRemoteRepository());

        artifactResolver.resolve(l, repositories, localRepository());

        assertLocalArtifactPresent(l);
    }

    @Test

     * Adds a tag to filter by.
     * @param tag The tag.
     */
    public void addTag(final String tag) {
        tags.add(tag);
    }

    /**
     * Adds a role to filter by.
     * @param role The role.
     */
    public void addRole(final String role) {
        roles.add(role);
    }

    /**
     * Adds a field to filter by.
     * @param field The field name.
     */

    if (!parentBuilder.getFeatures().contains(NoRecurse.SUBMAP)) {
      derivedSuites.add(createSubmapSuite(parentBuilder, Bound.NO_BOUND, Bound.EXCLUSIVE));
      derivedSuites.add(createSubmapSuite(parentBuilder, Bound.INCLUSIVE, Bound.NO_BOUND));
      derivedSuites.add(createSubmapSuite(parentBuilder, Bound.INCLUSIVE, Bound.EXCLUSIVE));
    }

    return derivedSuites;
  }

  @Override

        stemmerOverrideFile = new StemmerOverrideFile("1", "dummy", new Date());
        List<StemmerOverrideItem> itemList = new ArrayList<>();
        itemList.add(new StemmerOverrideItem(1, "aaa", "a"));
        itemList.add(new StemmerOverrideItem(2, "bbb", "b"));
        itemList.add(new StemmerOverrideItem(3, "ccc", "c"));
        stemmerOverrideFile.stemmerOverrideItemList = itemList;
    }

    @Test
    public void test_selectList() {

  ) {
    get().log("[ES] onOpen", Platform.INFO, null)
    events.add(Open(eventSource, response))
    drainCancelQueue(eventSource)
  }

  override fun onEvent(
    eventSource: EventSource,
    id: String?,
    type: String?,
    data: String,
  ) {
    get().log("[ES] onEvent", Platform.INFO, null)
    events.add(Event(id, type, data))
    drainCancelQueue(eventSource)
  }