src/jdk.charsets/share/classes/sun/nio/cs/ext/ISO2022_CN_GB.java

*** 66,76 ****
      private static class Encoder extends ISO2022.Encoder {
  
          public Encoder(Charset cs)
          {
              super(cs);
!             SODesig = "$)A";
  
              try {
                  Charset cset = Charset.forName("EUC_CN"); // GB2312
                  ISOEncoder = cset.newEncoder();
              } catch (Exception e) { }
--- 66,76 ----
      private static class Encoder extends ISO2022.Encoder {
  
          public Encoder(Charset cs)
          {
              super(cs);
!             SODesig = new byte[] { '$', ')', 'A'};
  
              try {
                  Charset cset = Charset.forName("EUC_CN"); // GB2312
                  ISOEncoder = cset.newEncoder();
              } catch (Exception e) { }