assertTrue(permutations.hasNext());
      permutations.next();
    }
    assertNoMorePermutations(permutations);
  }

  public void testToStringImplWithNullEntries() throws Exception {
    List<@Nullable String> list = Lists.newArrayList();
    list.add("foo");
    list.add(null);

    assertEquals(list.toString(), Collections2.toStringImpl(list));
  }

                                        + " due to an error: " + e.getMessage());
                        getLogger().debug("Exception", e);
                    } finally {
                        updateCheckManager.touch(metadata, repository, file);
                    }
                }

constraints.CronExpression.message          = {item} is invalid cron expression.

# ----------------------------------------------------------
#                                      Application Exception
#                                      ---------------------
# /- - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# five framework-embedded messages (don't change key names)
# - - - - - - - - - -/

constraints.CronExpression.message          = {item} is invalid cron expression.

# ----------------------------------------------------------
#                                      Application Exception
#                                      ---------------------
# /- - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# five framework-embedded messages (don't change key names)
# - - - - - - - - - -/

  private EqualsTester equalsTester;
  private ValidTestObject equalObject1;
  private ValidTestObject equalObject2;
  private ValidTestObject notEqualObject1;

  @Override
  public void setUp() throws Exception {
    super.setUp();
    reference = new ValidTestObject(1, 2);
    equalsTester = new EqualsTester();
    equalObject1 = new ValidTestObject(1, 2);
    equalObject2 = new ValidTestObject(1, 2);

   * escaping algorithm to perform more efficiently.
   *
   * <p>If the implementation of this method cannot correctly handle a particular code point then it
   * should either throw an appropriate runtime exception or return a suitable replacement
   * character. It must never silently discard invalid input as this may constitute a security risk.
   *
   * @param cp the Unicode code point to escape if necessary

  /** Used to avoid http://bugs.sun.com/view_bug.do?bug_id=6558557 */
  static <T> SortedMultiset<T> cast(Multiset<T> iterable) {
    return (SortedMultiset<T>) iterable;
  }

  @Override
  public void setUp() throws Exception {
    super.setUp();
    sortedMultiset = cast(getMultiset());
    entries =
        copyToList(
            getSubjectGenerator()

    IllegalArgumentException expected =
        assertThrows(IllegalArgumentException.class, () -> builder.buildOrThrow());
    // We don't really care which values the exception message contains, but they should be
    // different from each other. If buildKeepingLast() collapsed duplicates, that might end up not
    // being true.

    }
  }

  /**
   * Iterates the elements of the queue in no particular order.
   *
   * <p>If the underlying queue is modified during iteration an exception will be thrown.
   */
  private class QueueIterator implements Iterator<E> {
    private int cursor = -1;
    private int nextCursor = -1;
    private int expectedModCount = modCount;

  }

  public void testAsListEmpty() {
    assertThat(Floats.asList(EMPTY)).isSameInstanceAs(Collections.emptyList());
  }

  /**
   * A reference implementation for {@code tryParse} that just catches the exception from {@link
   * Float#valueOf}.
   */
  private static @Nullable Float referenceTryParse(String input) {
    if (input.trim().length() < input.length()) {
      return null;
    }
    try {