src/java.base/share/classes/java/lang/StringCoding.java

8200310: Avoid charset lookup machinery in java.nio.charset.StandardCharsets
Reviewed-by: sherman

*** 50,59 ****
--- 50,62 ----
  import static java.lang.Character.isSurrogate;
  import static java.lang.Character.highSurrogate;
  import static java.lang.Character.lowSurrogate;
  import static java.lang.Character.isSupplementaryCodePoint;
  import static java.lang.StringUTF16.putChar;
+ import static java.nio.charset.StandardCharsets.ISO_8859_1;
+ import static java.nio.charset.StandardCharsets.US_ASCII;
+ import static java.nio.charset.StandardCharsets.UTF_8;
  
  /**
   * Utility class for string encoding and decoding.
   */
  
*** 65,78 ****
      private static final ThreadLocal<SoftReference<StringDecoder>> decoder =
          new ThreadLocal<>();
      private static final ThreadLocal<SoftReference<StringEncoder>> encoder =
          new ThreadLocal<>();
  
-     private static final Charset ISO_8859_1 = sun.nio.cs.ISO_8859_1.INSTANCE;
-     private static final Charset US_ASCII = sun.nio.cs.US_ASCII.INSTANCE;
-     private static final Charset UTF_8 = sun.nio.cs.UTF_8.INSTANCE;
- 
      private static <T> T deref(ThreadLocal<SoftReference<T>> tl) {
          SoftReference<T> sr = tl.get();
          if (sr == null)
              return null;
          return sr.get();
--- 68,77 ----