28 public abstract class Charset implements Comparable<Charset> {  class
29   private static final Charset UTF_8 = new Charset("UTF-8") {};
31   private static final SortedMap<String, Charset> AVAILABLE_CHARSETS =
32       new TreeMap<String, Charset>();
37   public static SortedMap<String, Charset> availableCharsets() {  in availableCharsets()
41   public static Charset forName(String charsetName) {  in forName()
62     Charset charset = AVAILABLE_CHARSETS.get(charsetName.toUpperCase());  in forName()
71   private Charset(String name) {  in Charset()  method in Charset
79   public final int compareTo(Charset that) {  in compareTo()
90     } else if (o instanceof Charset) {  in equals()
91       Charset that = (Charset) o;  in equals()