return i;
      }
    }
    return -1;
  }

  /**
   * Returns the values from each provided array combined into a single array. For example, {@code
   * concat(new boolean[] {a, b}, new boolean[] {}, new boolean[] {c}} returns the array {@code {a,
   * b, c}}.
   *
   * @param arrays zero or more {@code boolean} arrays
   * @return a single array containing all the values from the source arrays, in order

  private ExecutionSequencer() {}

  /** Creates a new instance. */
  public static ExecutionSequencer create() {
    return new ExecutionSequencer();
  }

  /** This reference acts as a pointer tracking the head of a linked list of ListenableFutures. */
  private final AtomicReference<ListenableFuture<@Nullable Void>> ref =
      new AtomicReference<>(immediateVoidFuture());

        return i;
      }
    }
    return -1;
  }

  /**
   * Returns the values from each provided array combined into a single array. For example, {@code
   * concat(new boolean[] {a, b}, new boolean[] {}, new boolean[] {c}} returns the array {@code {a,
   * b, c}}.
   *
   * @param arrays zero or more {@code boolean} arrays
   * @return a single array containing all the values from the source arrays, in order

        response.setContentType(buf.toString());
        writeHeaders(response);
        try (PrintWriter out = new PrintWriter(new OutputStreamWriter(response.getOutputStream(), enc))) {
            out.print(text);
        } catch (final IOException e) {
            throw new IORuntimeException(e);
        }
    }

    /**
     * Writes custom headers to the HTTP response.

    @Test
    void testDependencyManagementExclusionsExcludeTransitively() throws Exception {
        File localRepo = getLocalRepositoryPath();

        File pom0 = new File(localRepo, "p0/pom.xml");
        File pom0Basedir = pom0.getParentFile();
        File pom1 = new File(pom0Basedir, "p1/pom.xml");

        // load the child project, which inherits from p0...
        MavenProject project0 = getProjectWithDependencies(pom0);

        return caught;
      }
      throw new AssertionError(
          "expected to throw " + expectedThrowable.getSimpleName() + " but threw " + t, t);
    }
    if (userPassedSupplier) {
      throw new AssertionError(
          "expected to throw "
              + expectedThrowable.getSimpleName()
              + " but returned result: "
              + result);
    } else {

            holder = null;
          }
        }
        return false;
      }

      @Override
      Splitr createSplit(Spliterator<T> from, long i) {
        return new Splitr(from, i);
      }
    }
    return StreamSupport.stream(new Splitr(fromSpliterator, 0), isParallel).onClose(stream::close);
  }

  /**
   * Returns a stream consisting of the results of applying the given function to the elements of

  }

  private static <E extends @Nullable Object> List<E> list(List<E> list, @Nullable Object mutex) {
    return (list instanceof RandomAccess)
        ? new SynchronizedRandomAccessList<E>(list, mutex)
        : new SynchronizedList<E>(list, mutex);
  }

  private static class SynchronizedList<E extends @Nullable Object>
      extends SynchronizedCollection<E> implements List<E> {

  }

  private static <E extends @Nullable Object> List<E> list(List<E> list, @Nullable Object mutex) {
    return (list instanceof RandomAccess)
        ? new SynchronizedRandomAccessList<E>(list, mutex)
        : new SynchronizedList<E>(list, mutex);
  }

  private static class SynchronizedList<E extends @Nullable Object>
      extends SynchronizedCollection<E> implements List<E> {

  private final Equivalence<? super T> equivalence;
  private final RelationshipTester<T> delegate;
  private final List<T> items = new ArrayList<>();

  private EquivalenceTester(Equivalence<? super T> equivalence) {
    this.equivalence = checkNotNull(equivalence);
    this.delegate =
        new RelationshipTester<>(
            equivalence, "equivalent", "hash", /* itemReporter= */ Item::toString);
  }