FULL PRODUCT VERSION :
java version "1.6.0_01"
Java(TM) SE Runtime Environment (build 1.6.0_01-b06)
Java HotSpot(TM) Client VM (build 1.6.0_01-b06, mixed mode, sharing)

java version "1.5.0_11"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_11-b03)
Java HotSpot(TM) Client VM (build 1.5.0_11-b03, mixed mode)

java version "1.4.2_14"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_14-b05)
Java HotSpot(TM) Client VM (build 1.4.2_14-b05, mixed mode)


ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows XP Professional Service Pack 2

A DESCRIPTION OF THE PROBLEM :
Shift_JIS encoder can not convert the Unicode character '\uFF0D' which is the fullwidth hyphen (minus) character into Shift-JIS character set (character code 0x817C in Shift-JIS).

When I tried to convert it vice-versa, Shift-JIS character 0x817C was converted into Unicode character \u2212 which is wrong. I think the mapping between Unicode and Shift_JIS has wrong information.


STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Run the following code.




EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
The above code should show the following message.

Unicode Character Data: \uFF0D
Shift_JIS Character Data: 0x81 0x7C

ACTUAL -
Conversion fails due to CharacterCodingException as follows.

Unicode Character Data: \uFF0D
java.nio.charset.UnmappableCharacterException: Input length = 1
at java.nio.charset.CoderResult.throwException(Unknown Source)
at java.nio.charset.CharsetEncoder.encode(Unknown Source)



---------- BEGIN SOURCE ----------
import java.nio.ByteBuffer;
import java.nio.CharBuffer;
import java.nio.charset.CharacterCodingException;
import java.nio.charset.Charset;
import java.nio.charset.CharsetEncoder;


public class Test {
    
    /** Creates a new instance of Test */
    public Test() {
        char c = '\uFF0D'; // Fullwidth Hyphen-Minus, 0x817C in Shift-JIS
        CharsetEncoder ce = Charset.forName("Shift_JIS").newEncoder();
        CharBuffer cb = CharBuffer.allocate(1);
        ByteBuffer bb;
        System.out.println(String.format("Unicode Character Data: \\u%X", new Integer(c)));
        cb.put(c);
        cb.rewind();
        try
        {
                bb = ce.encode(cb);
                System.out.print(ce.charset().displayName() + " Character Data: ");
                while (bb.hasRemaining())
                {
                        System.out.print(String.format("0x%02X ", new Byte(bb.get())));
                }
        } catch (CharacterCodingException e)
        {
                e.printStackTrace();
        }
    }
    
    public static void main(String[] args) {
        Test app = new Test();
    }
    
}

---------- END SOURCE ----------

REPRODUCIBILITY :
This bug can be reproduced always.