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From "Vladimir Strigun (JIRA)" <j...@apache.org>
Subject [jira] Created: (HARMONY-137) CharsetDecoder should replace undefined bytes with replacement string
Date Mon, 27 Feb 2006 07:11:27 GMT
CharsetDecoder should replace undefined bytes with replacement string

         Key: HARMONY-137
         URL: http://issues.apache.org/jira/browse/HARMONY-137
     Project: Harmony
        Type: Bug
  Components: Classlib  
    Reporter: Vladimir Strigun
    Priority: Minor

Corresponding to cp1250 mapping table, 0x81 byte is undefined. See http://www.unicode.org/Public/MAPPINGS/VENDORS/MICSFT/WINDOWS/CP1250.TXT
So, charset decoder should replace undefined bytes with default replacement, i.e. 0xFFFD.

Testcase for reproducing this issue:

import java.nio.charset.*;
import java.nio.*;

public class Harmony137 {
    public static void main(String[] args) throws Exception {
        ByteBuffer bb = ByteBuffer.allocate(5);
        bb.put((byte)0x81); bb.flip();
        Charset cp1250 = Charset.forName("cp1250");
        CharBuffer cb = cp1250.newDecoder().onMalformedInput(CodingErrorAction.REPLACE).onUnmappableCharacter(CodingErrorAction.REPLACE).decode(bb);
        if(cb.get(0)!=65533) {
            System.out.println("FAIL: expected 0xFFFD but result is: 0x"+Integer.toHexString(cb.get(0)).toUpperCase());

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