this.comparator = comparator;
    checkState((type == Type.SORTED) == (comparator != null));
  }

  /** Returns an instance which specifies that no ordering is guaranteed. */
  public static <S> ElementOrder<S> unordered() {
    return new ElementOrder<>(Type.UNORDERED, null);
  }

  /**
   * Returns an instance which specifies that ordering is guaranteed to be always be the same across

    this.comparator = comparator;
    checkState((type == Type.SORTED) == (comparator != null));
  }

  /** Returns an instance which specifies that no ordering is guaranteed. */
  public static <S> ElementOrder<S> unordered() {
    return new ElementOrder<>(Type.UNORDERED, null);
  }

  /**
   * Returns an instance which specifies that ordering is guaranteed to be always be the same across

 * is an immutable <i>supplier</i> of {@code Writer} instances.
 *
 * <p>{@code CharSink} provides two kinds of methods:
 *
 * <ul>
 *   <li><b>Methods that return a writer:</b> These methods should return a <i>new</i>, independent
 *       instance each time they are called. The caller is responsible for ensuring that the
 *       returned writer is closed.

        this.typeRegistry = requireNonNull(typeRegistry, "null typeRegistry");
        this.allHandlers = new ConcurrentHashMap<>();
    }

    @Override
    public void onEvent(Object event) {
        if (event instanceof ExecutionEvent executionEvent) {
            if (executionEvent.getType() == ExecutionEvent.Type.SessionEnded) {
                allHandlers.clear();
            }
        }
    }

    @Override

    ContiguousSet<Integer> empty = ContiguousSet.create(Range.closedOpen(1, 1), integers());
    assertTrue(empty instanceof EmptyContiguousSet);
    reserializeAndAssert(empty);

    ContiguousSet<Integer> regular = ContiguousSet.create(Range.closed(1, 3), integers());
    assertTrue(regular instanceof RegularContiguousSet);
    reserializeAndAssert(regular);

    /*

            }
        }

        if (modelId == null) {
            modelId = getModelId();
            source = getSource();
        }

        if (line <= 0 && column <= 0 && req.getException() instanceof ModelParseException e) {
            line = e.getLineNumber();
            column = e.getColumnNumber();
        }

        ModelProblem problem = new DefaultModelProblem(
                req.getMessage(),

    DelegatingInvocationHandlerWithEquals(Object delegate) {
      super(delegate);
    }

    @Override
    public boolean equals(@Nullable Object obj) {
      if (obj instanceof DelegatingInvocationHandlerWithEquals) {
        DelegatingInvocationHandlerWithEquals that = (DelegatingInvocationHandlerWithEquals) obj;
        return delegate.equals(that.delegate);
      } else {
        return false;

            @Override
            public String getType() {
                return type;
            }

            @Override
            public boolean equals(Object o) {
                return o instanceof DefaultArtifactFactoryRequest that
                        && Objects.equals(groupId, that.groupId)
                        && Objects.equals(artifactId, that.artifactId)

    checkNotNull(throwable);
    if (throwable instanceof RuntimeException) {
      throw (RuntimeException) throwable;
    }
    if (throwable instanceof Error) {
      throw (Error) throwable;
    }
  }

  /**
   * Propagates {@code throwable} exactly as-is, if and only if it is an instance of {@link
   * RuntimeException} or {@link Error}.
   *

    }

    return derivedSuites;
  }

  @Override
  protected SetTestSuiteBuilder<K> createDerivedKeySetSuite(TestSetGenerator<K> keySetGenerator) {
    return keySetGenerator instanceof TestSortedSetGenerator
        ? SortedSetTestSuiteBuilder.using((TestSortedSetGenerator<K>) keySetGenerator)
        : SetTestSuiteBuilder.using(keySetGenerator);
  }

  /**