Name: ooR10006 Date: 07/24/2001
jdk1.4.0beta-b72's methods:
OutputStreamWriter(ByteArrayOutputStream, encodingName).write(char[]) and
InputStreamReader(ByteArrayInputStream, encodingName).read(char[], int, int)
incorrectly write/read chars/bytes for the encoding "SJIS".
Specifically, the problems are:
1. The character 0x005C is encoded as (byte)0x5C instead of the 2 byte
sequence (byte)0x81, (byte)0x5F.
2. The byte 0x5C is decoded as char 0x005C instead of 0x00A5.
3. 2 byte sequence (byte)0x81, (byte)0x5F is decoded as char 0xFF3C
instead of char 0x005C.
4. The byte 0x7E is decoded as char 0x007E instead of 0x203E, however
the char 0x203E is correctly encoded as byte 0x7E.
The following test shows this:
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
public class test {
public static void main(String[] args){
byteToChar();
charToByte();
}
static void byteToChar(){
char[] receivedChars = new char[4];
byte[] inputBytes = {(byte)0x5c, (byte)0x81, (byte)0x5F, (byte)0x7e};
char[] expectedChars = {(char)0xA5, (char)0x5C, (char)0x203E};
try {
ByteArrayInputStream bais = new ByteArrayInputStream(inputBytes);
InputStreamReader reader = new InputStreamReader(bais, "SJIS");
reader.read(receivedChars, 0, receivedChars.length);
System.out.println("byte sequence for decoding: (byte)0x5C "
+ "(byte)0x81, (byte)0x5F, (byte)0x7e");
System.out.println("decoded chars: "
+ "0x" + Integer.toHexString(receivedChars[0]) + ", "
+ "0x" + Integer.toHexString(receivedChars[1]) + ", "
+ "0x" + Integer.toHexString(receivedChars[2]));
System.out.println("expected chars: "
+ "0x" + Integer.toHexString(expectedChars[0]) + ", "
+ "0x" + Integer.toHexString(expectedChars[1]) + ", "
+ "0x" + Integer.toHexString(expectedChars[2]));
} catch(UnsupportedEncodingException e) {
return;
} catch(IOException ex) {
return;
}
}
static void charToByte(){
char[] inputChars = {(char)0x5C};
byte[] expectedBytes = {(byte)0x81, (byte)0x5F};
try {
ByteArrayOutputStream baos = new ByteArrayOutputStream(10);
OutputStreamWriter writer = new OutputStreamWriter(baos, "SJIS");
writer.write(inputChars);
writer.flush();
byte[] bytes = baos.toByteArray();
System.out.println("chars for encoding: (char)0x5C ");
System.out.println("encoding bytes: "
+ "0x" + Integer.toHexString(bytes[0] & 0xFF));
System.out.println("expected bytes: "
+ "0x" + Integer.toHexString(expectedBytes[0] & 0xFF) + ", "
+ "0x" + Integer.toHexString(expectedBytes[1] & 0xFF));
} catch (UnsupportedEncodingException e) {
return;
} catch (IOException ex) {
return;
}
}
}
% jdk1.4.0beta-b72/solsparc/bin/java test
byte sequence for decoding: (byte)0x5C (byte)0x81, (byte)0x5F, (byte)0x7e
decoded chars: 0x5c, 0xff3c, 0x7e
expected chars: 0xa5, 0x5c, 0x203e
chars for encoding: (char)0x5C
encoding bytes: 0x5c
expected bytes: 0x81, 0x5f
%
Due to this the following JCK test fails:
api/java_io/mbCharEncoding/index.html#ShiftJIS
The test is correct and actually fails since 1.1.6
======================================================================
- duplicates
-
JDK-4352234 InputStreamReader failing for ja/SJIS encoding (Converter tests for i18n)
- Closed
- relates to
-
JDK-4486307 (spec) Need to document deviation from standards in Japanese charsets
- Closed