@SuppressWarnings("unchecked") // generics+arrays
    // TODO(cpovirk): Consider storing an Entry<?> instead of Entry<E>.
    Entry<E>[] entries = (Entry<E>[]) multiset.entrySet().toArray((Entry<E>[]) new Entry<?>[0]);
    Arrays.sort(entries, DecreasingCount.INSTANCE);
    return ImmutableMultiset.copyFromEntries(asList(entries));
  }

    @SuppressWarnings("unchecked") // generics+arrays
    // TODO(cpovirk): Consider storing an Entry<?> instead of Entry<E>.
    Entry<E>[] entries = (Entry<E>[]) multiset.entrySet().toArray((Entry<E>[]) new Entry<?>[0]);
    Arrays.sort(entries, DecreasingCount.INSTANCE);
    return ImmutableMultiset.copyFromEntries(asList(entries));
  }

  public void testEquals_containingNullKey() {
    Collection<Entry<K, V>> entries = getSampleEntries(getNumEntries() - 1);
    entries.add(entry(null, v3()));

    resetContainer(getSubjectGenerator().create(entries.toArray()));
    assertTrue(
        "A Map should equal any other Map containing the same entries,"
            + " even if some keys are null.",
        getMap().equals(newHashMap(entries)));
  }

        requireNonNull(commandRegistry, "commandRegistry");
        this.commandRegistries.add(commandRegistry);
    }

    public CommandRegistry[] getCommandRegistries() {
        return commandRegistries.toArray(new CommandRegistry[0]);
    }

    @Override
    public void close() throws Exception {
        ArrayList<Exception> exceptions = new ArrayList<>();
        for (CommandRegistry commandRegistry : commandRegistries) {

      }
    }
    return sum;
  }

  @Benchmark
  int arrayListToArrayFor(int reps) {
    int sum = 0;
    for (int i = 0; i < reps; i++) {
      for (Object value : arrayList.toArray()) {
        sum += value.hashCode();
      }
    }
    return sum;
  }

  @Benchmark
  int linkedListFor(int reps) {
    int sum = 0;
    for (int i = 0; i < reps; i++) {

     */
    Interface a = new Impl();
    Interface b = new Impl();
    ImmutableSortedSet<Interface> set = ImmutableSortedSet.of(a, b);
    Object[] unused1 = set.toArray();
    Object[] unused2 = set.toArray(new Object[2]);
  }

  interface Interface extends Comparable<Interface> {}

  static class Impl implements Interface {
    static int nextId;
    Integer id = nextId++;

                }

                // dump things out
                System.out.println("===================================================");
                System.out.println("args: " + Arrays.toString(mvnArgs.toArray()));
                System.out.println("===================================================");
                System.out.println("stdout: " + stdout);

      char[] chars = Chars.toArray(asList(elements));
      return charactersOf(String.copyValueOf(chars));
    }
  }

  public static class CharactersOfCharSequenceGenerator extends TestCharacterListGenerator {
    @Override
    public List<Character> create(Character[] elements) {
      char[] chars = Chars.toArray(asList(elements));
      StringBuilder str = new StringBuilder();

      int i = 0;
      for (Entry<K, V> entry : originalEntries) {
        entries.add(mapEntry(keysArray[i++], entry.getValue()));
      }

      return mapGenerator.create(entries.toArray()).keySet();
    }

    @Override
    public K[] createArray(int length) {
      // TODO: with appropriate refactoring of OneSizeGenerator, we can perhaps
      // tidy this up and get rid of the casts here and in

  public void testEquals_containingNullKey() {
    Collection<Entry<K, V>> entries = getSampleEntries(getNumEntries() - 1);
    entries.add(entry(null, v3()));

    resetContainer(getSubjectGenerator().create(entries.toArray()));
    assertTrue(
        "A Map should equal any other Map containing the same entries,"
            + " even if some keys are null.",
        getMap().equals(newHashMap(entries)));
  }