return vector.elements();
  }

  public void testToString() {
    Iterator<String> iterator = Lists.newArrayList("yam", "bam", "jam", "ham").iterator();
    assertEquals("[yam, bam, jam, ham]", Iterators.toString(iterator));
  }

  public void testToStringWithNull() {
    Iterator<@Nullable String> iterator =

    return vector.elements();
  }

  public void testToString() {
    Iterator<String> iterator = Lists.newArrayList("yam", "bam", "jam", "ham").iterator();
    assertEquals("[yam, bam, jam, ham]", Iterators.toString(iterator));
  }

  public void testToStringWithNull() {
    Iterator<@Nullable String> iterator =

				"application/vnd.iptc.g2.packageitem+xml",
				"application/vnd.ipunplugged.rcprofile",
				"application/vnd.irepository.package+xml",
				"application/vnd.is-xpr",
				"application/vnd.jam",
				"application/vnd.japannet-directory-service",
				"application/vnd.japannet-jpnstore-wakeup",
				"application/vnd.japannet-payment-wakeup",
				"application/vnd.japannet-registration",