@Override
          public void execute(Runnable task) {
            manualExecutorTask[0] = task;
          }
        };

    results.add(serializer.submit(Callables.returning(null), manualExecutor));
    Future<?>[] thingToCancel = new Future<?>[1];
    results.add(
        serializer.submit(
            () -> {
              thingToCancel[0].cancel(false);
              return null;
            },

                return matchOutput;
            }

            pendingOutput = fst.outputs.add(pendingOutput, scratchArc.output());

            if (scratchArc.isFinal()) {
                matchOutput = fst.outputs.add(pendingOutput, scratchArc.nextFinalOutput());
                longestMatchEndOffset = start + index + Character.charCount(codePoint);
            }

        projectsWithNullAwayEnabled.add(projectPath)
    }

    fun addProjectWithUncheckedDeps(projectPath: String) {
        ensureProjectNotSeen(projectPath)

        projectsWithUncheckedDeps.add(projectPath)
    }

    fun addProjectToEnableNullawayIn(projectPath: String) {
        ensureProjectNotSeen(projectPath)

        projectsToEnableNullaway.add(projectPath)
    }

    // other threads waiting on take() will also return.
    if (result == DEAD_LETTER) responseQueue.add(DEAD_LETTER)

    return result
  }

  public override fun peek(): MockResponse = responseQueue.peek() ?: failFastResponse ?: super.peek()

  public open fun enqueue(response: MockResponse) {
    responseQueue.add(response)
  }

  public open fun clear() {
    responseQueue.clear()
  }

  fun setFaultyWrite(
    file: Path,
    faulty: Boolean,
  ) {
    if (faulty) {
      writeFaults.add(file)
    } else {
      writeFaults.remove(file)
    }
  }

  fun setFaultyDelete(
    file: Path,
    faulty: Boolean,
  ) {
    if (faulty) {
      deleteFaults.add(file)
    } else {
      deleteFaults.remove(file)
    }
  }

  fun setFaultyRename(
    file: Path,

          @Override
          protected void handleLine(String line, String end) {
            lines.add(line + end);
          }
        };
    char[] chars = input.toCharArray();
    int off = 0;
    while (off < chars.length) {
      int len = min(chars.length, off + chunk) - off;
      lineBuf.add(chars, off, len);
      off += len;
    }
    lineBuf.finish();
    return lines;
  }

  private Outcome doCall() {
    List<Object> arguments = new ArrayList<>();
    if (isGuarded(method)) {
      arguments.add(guard);
    }
    if (isLongTimeUnitBased(method)) {
      arguments.add(timeout.millis);
      arguments.add(MILLISECONDS);
    }
    if (isDurationBased(method)) {
      arguments.add(Duration.ofMillis(timeout.millis));
    }
    try {
      Object result;
      doingCallLatch.countDown();

                    if (values.length > 1) {
                        permissionSet.add(systemHelper.getSearchRoleByUser(values[0]));
                    }
                }
                stream(groups).of(stream -> stream.forEach(s -> permissionSet.add(systemHelper.getSearchRoleByGroup(s))));
                stream(roles).of(stream -> stream.forEach(s -> permissionSet.add(systemHelper.getSearchRoleByRole(s))));

        ASN1Integer expected = new ASN1Integer(123);
        vector.add(expected);
        ASN1Integer result = ASN1Util.as(ASN1Integer.class, vector.elements());
        assertSame(expected, result);
    }

    @Test
    void testAs_Enumeration_Failure() {
        // Test failed casting from enumeration
        Vector<ASN1Integer> vector = new Vector<>();
        vector.add(new ASN1Integer(123));

  }

  @CollectionSize.Require(absent = CollectionSize.ZERO)
  public void testEquals_otherSetWithDifferentElements() {
    Collection<E> elements = getSampleElements(getNumElements() - 1);
    elements.add(getSubjectGenerator().samples().e3());

    assertFalse(
        "A Set should not equal another Set containing different elements.",
        getSet().equals(MinimalSet.from(elements)));
  }