In case the "malformed" character is the only character in the input buffer
or the last character in the input buffer, the return value from convertAny()
will be off-by-one. The following sample showes the problem. The expected
return value is "3" not the current "2"

import java.io.*;
import sun.io.*;

public class test_c2b {
  public static void main(String args[]) {
    char cc[] = new char[10];
    byte bb[] = new byte[20];
    CharToByteConverter c2b = null;
    int i;

    try {
      c2b = CharToByteConverter.getConverter("ASCII");
      cc[0] = (char)0xdc00;
      cc[1] = (char)0xdc00;
      cc[2] = (char)0xdc00;
      int ret = c2b.convertAny(cc, 0, 3, bb, 0, bb.length);
      System.out.println("ret=" + ret);
      System.out.println("byte[0]=" + bb[0]);
      System.out.println("byte[1]=" + bb[1]);
      if (ret == 3);
      System.out.println("byte[2]=" + bb[2]);

    }
    catch (Exception e){
      System.out.println("c2b failed exception: " + e);
    }
    
  }
}