this.presentFeatures = Helpers.copyToSet(presentFeatures);
    this.absentFeatures = Helpers.copyToSet(absentFeatures);
  }

  public TesterRequirements(TesterRequirements tr) {
    this(tr.getPresentFeatures(), tr.getAbsentFeatures());
  }

  public TesterRequirements() {
    this(Collections.<Feature<?>>emptySet(), Collections.<Feature<?>>emptySet());
  }

 *
 * <table>
 * <caption>Range Types</caption>
 * <tr><th>Notation        <th>Definition               <th>Factory method
 * <tr><td>{@code (a..b)}  <td>{@code {x | a < x < b}}  <td>{@link Range#open open}
 * <tr><td>{@code [a..b]}  <td>{@code {x | a <= x <= b}}<td>{@link Range#closed closed}
 * <tr><td>{@code (a..b]}  <td>{@code {x | a < x <= b}} <td>{@link Range#openClosed openClosed}

  public static final String REFERER = "Referer";
  /**
   * The HTTP <a href="https://www.w3.org/TR/referrer-policy/">{@code Referrer-Policy}</a> header
   * field name.
   *
   * @since 23.4
   */
  public static final String REFERRER_POLICY = "Referrer-Policy";

  /**
   * Values for the <a href="https://www.w3.org/TR/referrer-policy/">{@code Referrer-Policy}</a>
   * header.
   *
   * @since 23.4
   */

    this.presentFeatures = Helpers.copyToSet(presentFeatures);
    this.absentFeatures = Helpers.copyToSet(absentFeatures);
  }

  public TesterRequirements(TesterRequirements tr) {
    this(tr.getPresentFeatures(), tr.getAbsentFeatures());
  }

  public TesterRequirements() {
    this(Collections.<Feature<?>>emptySet(), Collections.<Feature<?>>emptySet());
  }

 *
 * <p>For details on the behavior of the escapers in this class, see sections <a
 * href="http://www.w3.org/TR/2008/REC-xml-20081126/#charsets">2.2</a> and <a
 * href="http://www.w3.org/TR/2008/REC-xml-20081126/#syntax">2.4</a> of the XML specification.
 *
 * @author Alex Matevossian
 * @author David Beaumont
 * @since 15.0
 */
@GwtCompatible

 *
 * <table>
 * <caption>Encodings</caption>
 * <tr>
 * <th>Encoding
 * <th>Alphabet
 * <th>{@code char:byte} ratio
 * <th>Default padding
 * <th>Comments
 * <tr>
 * <td>{@link #base16()}
 * <td>0-9 A-F
 * <td>2.00
 * <td>N/A
 * <td>Traditional hexadecimal. Defaults to upper case.
 * <tr>
 * <td>{@link #base32()}
 * <td>A-Z 2-7
 * <td>1.60
 * <td>=

   *
   * @since 32.0.0
   */
  public static final MediaType JWT = createConstant(APPLICATION_TYPE, "jwt");

  /**
   * The <a href="http://www.w3.org/TR/appmanifest/">Manifest for a web application</a>.
   *
   * @since 19.0
   */
  public static final MediaType MANIFEST_JSON_UTF_8 =
      createConstantUtf8(APPLICATION_TYPE, "manifest+json");

  /**

 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
public final class HtmlEscapers {
  /**
   * Returns an {@link Escaper} instance that escapes HTML metacharacters as specified by <a
   * href="http://www.w3.org/TR/html4/">HTML 4.01</a>. The resulting strings can be used both in
   * attribute values and in most elements' text contents, provided that the HTML

c?tgnuv-airab??de?eilcab??vog?zib???wo&rc?t!epac????o&76i4orfy--nx?a!.&bp?de?go?oc?ti?vg??boat??b!.&a&ci&sum?tilop??i&c&arcomed?neic??golo&ce?ncet??m&edaca?onoce??rt&ap?sudni??vilob??n&egidni?icidem??serpme?tsiver?vitarepooc??b&ew?og??dulas?e&rbmon?tr&a?op&ed?snart????g&olb?ro??ikiw?l&a&noi&canirulp?seforp??rutan??im??moc?o&fni?lbeup?rga?tneimivom??saiciton?t&askt?en?ni??ude?vt??h?iew?olg??c!.&bew?cer?dr&c,rac,?esabapus,gro?ipym,l&im?per:.di,,?m&o&c!.topsgolb,?n??rif??ofni?s&egap&dael,l,?tra??t&...

    assertEquals(ImmutableSortedMap.of("one", 3, "three", 5), map.headMap("two", false));
    assertEquals(ImmutableSortedMap.of("three", 5), map.subMap("one", false, "tr", true));

    assertEquals("three", map.higherKey("one"));
    assertEquals("three", map.higherKey("r"));
    assertEquals("three", map.ceilingKey("r"));
    assertEquals("one", map.ceilingKey("one"));