protected int maxErrorCount = 2;

    protected List<String> finishedSessionIdList = new ArrayList<>();

    private final List<DocBoostMatcher> docBoostMatcherList = new ArrayList<>();

    private List<Crawler> crawlerList;

    private IngestFactory ingestFactory = null;

    public IndexUpdater() {
        // nothing
    }

    @PostConstruct
    public void init() {

    }

    private Artifact createProjectArtifactX(String groupId, String artifactId, String version) {
        return createProjectArtifactX(groupId, artifactId, version, null);
    }

    private Artifact createParentArtifactX(String groupId, String artifactId, String version) {
        return createProjectArtifactX(groupId, artifactId, version);
    }

    public String toString() {
      return "BY_TO_STRING";
    }

    private Object readResolve() {
      return INSTANCE;
    }
  }

  // Always equal is a valid total ordering. And it works for any Object.
  private static final class AlwaysEqual extends Ordering<@Nullable Object>
      implements Serializable {
    private static final AlwaysEqual INSTANCE = new AlwaysEqual();

    @Override

  }

  // TODO(benyu): migrate all subtyping tests from TypeTokenTest to this class using SubtypeTester.

  private interface Outdoor {}

  private interface Indoor {}

  private interface Grocery {}

  private interface Electronics {}

  private interface ConsumerFacing<T> {}

  private static class Mall<T> {
    class Shop<ProductT> {}

    abstract class Retailer<ProductT> extends Shop<ProductT>

    // ----------------------------------------------------------------------

    private static final String CONVERSION_ERROR = "Cannot convert: \"%s\" to: %s";

    // ----------------------------------------------------------------------
    // Implementation fields
    // ----------------------------------------------------------------------

    private final Collection<TypeConverterBinding> typeConverterBindings;

    assertThat(future.set(1)).isTrue();
    assertSuccessful(future, 1);
  }

  /** Concrete subclass for testing. */
  private static class TestedFuture<V> extends AbstractFuture<V> {
    private static <V> TestedFuture<V> create() {
      return new TestedFuture<V>();
    }
  }

  private static final class CountingRunnable implements Runnable {
    int count;

    @Override
    public void run() {

class StatisticsBasedPerformanceTestBucketProvider(private val model: CIBuildModel, performanceTestDurationsJson: File, performanceTestsCiJson: File) : PerformanceTestBucketProvider {
    private
    val performanceTestConfigurations = readPerformanceTestConfigurations(performanceTestsCiJson)
    private

   */

  private static boolean hasConstructorUsableByGetChecked(
      Class<? extends Exception> exceptionClass) {
    try {
      Exception unused = newWithCause(exceptionClass, new Exception());
      return true;
    } catch (Throwable t) { // sneaky checked exception
      return false;
    }
  }

@Tag("it")
public class KeyMatchTests extends CrudTestBase {

    private static final String NAME_PREFIX = "keyMatchTest_";
    private static final String API_PATH = "/api/admin/keymatch";
    private static final String LIST_ENDPOINT_SUFFIX = "settings";
    private static final String ITEM_ENDPOINT_SUFFIX = "setting";

    private static final String KEY_PROPERTY = "term";

    @Override

  }

  private final int[] factorials = new int[ARRAY_SIZE];
  private final int[][] binomials = new int[ARRAY_SIZE][2];
  private final int[][] nonnegInt = new int[ARRAY_SIZE][2];
  private final long[][] nonnegLong = new long[ARRAY_SIZE][2];
  private final int[][] intsToAdd = new int[ARRAY_SIZE][2];
  private final int[][] intsToMul = new int[ARRAY_SIZE][2];