src/share/classes/sun/nio/cs/ext/ISO2022.java

@@ -386,13 +386,13 @@
         }
     }
 
     protected static class Encoder extends CharsetEncoder {
         private final Surrogate.Parser sgp = new Surrogate.Parser();
-        private final byte SS2 = (byte)0x8e;
-        private final byte PLANE2 = (byte)0xA2;
-        private final byte PLANE3 = (byte)0xA3;
+        protected final byte SS2 = (byte)0x8e;
+        protected final byte PLANE2 = (byte)0xA2;
+        protected final byte PLANE3 = (byte)0xA3;
         private final byte MSB = (byte)0x80;
 
         protected final byte maximumDesignatorLength = 4;
 
         protected String SODesig,