Name: bb33257 Date: 12/23/98


The CharToByte converters for Cp939. Cp930. Cp933, Cp935,
and Cp937 all throw an InternalError exception in certain
circumstances. Here's a sample:

import java.io.*;

public class HostDBCS {
    public static void main(String argv[]) throws Exception {
        try {
            /* HOST DBCS Cp939, Cp930, Cp933, Cp935, Cp937 */
            String encoding = "Cp939";
            String inStr = "\uff21"; /* Unicode FULLWIDTH A */
            String outStr = null;
            byte[] inByte = new byte[3];
            byte[] outByte = null;

            inByte[0] = (byte) 0x0e; /* EBCDIC DBCS A */
            inByte[1] = (byte) 0x42; /* EBCDIC DBCS A */
            inByte[2] = (byte) 0xc1; /* EBCDIC DBCS A */

            outStr = new String(inByte, 0, 3, encoding);
            String s = Integer.toHexString(outStr.charAt(0)).toUpperCase();
            System.out.println("\noutStr=" + s);

            outByte = inStr.getBytes(encoding);
            s = "";
            for (int i = 0; i < outByte.length; i++)
                s += Integer.toHexString(outByte[i] & 0xff).toUpperCase();
            
            System.out.println("\noutByte=" + s);
        }
        catch (Throwable e) {
            System.err.println(e.getLocalizedMessage());
            e.printStackTrace();
        }
        System.in.read();
    }
}

The output from this program is:
 outStr=FF21
 Converter malfunction: sun.io.CharToByteCp939
 java.lang.InternalError: Converter malfunction: sun.io.CharToByteCp939
        at java.lang.String.getBytes(String.java:629)
        at java.lang.String.getBytes(String.java:659)
        at HostDBCS.main(Compiled Code)

I'm running JDK 1.2 final on Windows NT 4.0, but I suspect that
this problem occurs on other platforms as well.
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