did not appear, and after a minute or two she walked on in the
direction in which the March Hare was said to live.  `I've seen
hatters before,' she said to herself; `the March Hare will be
much the most interesting, and perhaps as this is May it won't be
raving mad--at least not so mad as it was in March.'  As she said
this, she looked up, and there was the Cat again, sitting on a
branch of a tree.

  public SampleElements<Entry<String, String>> samples() {
    return new SampleElements<>(
        Helpers.mapEntry("one", "January"),
        Helpers.mapEntry("two", "February"),
        Helpers.mapEntry("three", "March"),
        Helpers.mapEntry("four", "April"),
        Helpers.mapEntry("five", "May"));
  }

  @Override
  public final BiMap<String, String> create(Object... entries) {
    @SuppressWarnings("unchecked")

  public SampleElements<Entry<String, String>> samples() {
    return new SampleElements<>(
        Helpers.mapEntry("one", "January"),
        Helpers.mapEntry("two", "February"),
        Helpers.mapEntry("three", "March"),
        Helpers.mapEntry("four", "April"),
        Helpers.mapEntry("five", "May"));
  }

  @Override
  public SampleElements<String> sampleKeys() {

  public SampleElements<Entry<AnEnum, String>> samples() {
    return new SampleElements<>(
        Helpers.mapEntry(AnEnum.A, "January"),
        Helpers.mapEntry(AnEnum.B, "February"),
        Helpers.mapEntry(AnEnum.C, "March"),
        Helpers.mapEntry(AnEnum.D, "April"),
        Helpers.mapEntry(AnEnum.E, "May"));
  }

  @Override
  public final Map<AnEnum, String> create(Object... entries) {
    @SuppressWarnings("unchecked")

  public SampleElements<Entry<AnEnum, String>> samples() {
    return new SampleElements<>(
        Helpers.mapEntry(AnEnum.A, "January"),
        Helpers.mapEntry(AnEnum.B, "February"),
        Helpers.mapEntry(AnEnum.C, "March"),
        Helpers.mapEntry(AnEnum.D, "April"),
        Helpers.mapEntry(AnEnum.E, "May"));
  }

  @Override
  public final Map<AnEnum, String> create(Object... entries) {
    @SuppressWarnings("unchecked")

  public SampleElements<Entry<String, String>> samples() {
    return new SampleElements<>(
        Helpers.mapEntry("one", "January"),
        Helpers.mapEntry("two", "February"),
        Helpers.mapEntry("three", "March"),
        Helpers.mapEntry("four", "April"),
        Helpers.mapEntry("five", "May"));
  }

  @Override
  public final BiMap<String, String> create(Object... entries) {
    @SuppressWarnings("unchecked")

      return new SampleElements<>("one", "two", "three", "four", "five");
    }

    @Override
    public SampleElements<String> sampleValues() {
      return new SampleElements<>("january", "february", "march", "april", "may");
    }

    @Override
    public Collection<String> createCollection(Iterable<? extends String> values) {
      return Lists.newArrayList(values);
    }

    @Override

  public SampleElements<Entry<String, String>> samples() {
    return new SampleElements<>(
        Helpers.mapEntry("one", "January"),
        Helpers.mapEntry("two", "February"),
        Helpers.mapEntry("three", "March"),
        Helpers.mapEntry("four", "April"),
        Helpers.mapEntry("five", "May"));
  }

  @Override
  public SampleElements<String> sampleKeys() {

   */
  @Deprecated
  JAVA_EXT_DIRS("java.ext.dirs"),

  /** Operating system name. */
  OS_NAME("os.name"),

  /** Operating system architecture. */
  OS_ARCH("os.arch"),

  /** Operating system version. */
  OS_VERSION("os.version"),

  /** File separator ("/" on UNIX). */
  FILE_SEPARATOR("file.separator"),

  /** Path separator (":" on UNIX). */

      static {
        // fall back to the safer pure java implementation unless we're in
        // a 64-bit JVM with an 8-byte aligned field offset.
        if (!("64".equals(System.getProperty("sun.arch.data.model"))
            && (BYTE_ARRAY_BASE_OFFSET % 8) == 0
            // sanity check - this should never fail
            && theUnsafe.arrayIndexScale(byte[].class) == 1)) {