final List<E> list;
    final int[] c;
    final int[] o;
    int j;

    PermutationIterator(List<E> list) {
      this.list = new ArrayList<>(list);
      int n = list.size();
      c = new int[n];
      o = new int[n];
      Arrays.fill(c, 0);
      Arrays.fill(o, 1);
      j = Integer.MAX_VALUE;
    }

    @Override
    protected @Nullable List<E> computeNext() {

          protected void verify(List<T> elements) {
            assertEquals(new HashSet<>(elements), newHashSet(mmHeap.iterator()));
            assertIntact(mmHeap);
          }
        };
    tester.test();
  }

  public void testIteratorTester() throws Exception {
    Random random = new Random(0);
    List<Integer> list = new ArrayList<>();
    for (int i = 0; i < 3; i++) {
      list.add(random.nextInt());

    }

    /**
     * Constructs a new CrawlerSystemException with the specified detail message.
     *
     * @param message the detail message. The detail message is saved for later retrieval by the {@link #getMessage()} method.
     */
    public CrawlerSystemException(final String message) {
        super(message);
    }

    /**
     * Constructs a new CrawlerSystemException with the specified cause.
     *

    return new CollectionTestSuiteBuilder<E>().usingGenerator(generator);
  }

  @Override
  protected List<TestSuite> createDerivedSuites(
      FeatureSpecificTestSuiteBuilder<?, ? extends OneSizeTestContainerGenerator<Collection<E>, E>>
          parentBuilder) {
    List<TestSuite> derivedSuites = new ArrayList<>(super.createDerivedSuites(parentBuilder));

    return ofClassAndContents(Object.class, (E[]) new Object[0], asList(contents));
  }

  @SuppressWarnings("unchecked") // empty Object[] as E[]
  public static <E extends @Nullable Object> MinimalSet<E> from(Collection<? extends E> contents) {
    return ofClassAndContents(Object.class, (E[]) new Object[0], contents);
  }

            // last resort; as ideally we should get ExitException only
            new SystemLogger(stdErr).error(e.getMessage(), e);
            return 1;
        } finally {
            if (classWorldManaged) {
                classWorld.close();
            }
        }
    }

    protected MessageBuilderFactory createMessageBuilderFactory() {
        return new JLineMessageBuilderFactory();
    }

    return ofClassAndContents(Object.class, (E[]) new Object[0], asList(contents));
  }

  @SuppressWarnings("unchecked") // empty Object[] as E[]
  public static <E extends @Nullable Object> MinimalSet<E> from(Collection<? extends E> contents) {
    return ofClassAndContents(Object.class, (E[]) new Object[0], contents);
  }

    private final GenerationListener listener = new DefaultGenerationListener();

    public ClassDocBuilder(DslDocModel model, JavadocConverter javadocConverter) {
        commentBuilder = new ClassDocCommentBuilder(javadocConverter, listener);
        propertiesBuilder = new ClassDocPropertiesBuilder(javadocConverter, listener);
        methodsBuilder = new ClassDocMethodsBuilder(javadocConverter, listener);

    }

    /**
     * Creates a new NTLM HTTP URL connection that wraps an existing HTTP connection.
     *
     * @param connection the HTTP connection to wrap for NTLM authentication
     */
    public NtlmHttpURLConnection(final HttpURLConnection connection) {
        super(connection.getURL());
        this.connection = connection;
        requestProperties = new HashMap();
    }

    @Override

public abstract class UuidUtil {

    /**
     * Do not instantiate.
     */
    protected UuidUtil() {
    }

    private static final byte[] DEFAULT_ADDRESS = new byte[] { (byte) 127, (byte) 0, (byte) 0, (byte) 1 };

    private static final SecureRandom RANDOM = new SecureRandom();

    private static final String BASE = StringUtil.toHex(getAddress()) + StringUtil.toHex(System.identityHashCode(RANDOM));

    /**