String#getBytes("JIS") returns incorrect result

Name: mc57594 Date: 03/06/97


String#getBytes("JIS") and OutputStreamWriter object created by
    OutputStreamWriter w = new OutputStreamWriter(outputstream, "JIS");
encode strings incorrectly.
They always append shift-in sequence to encoded byte sequence, even if it is not necessary.
For example,
    String s = new String("abc");
    byte b[];
    try {
        b = s.getBytes("JIS");
        ..........
    }
    catch (Exception e) { ...... }
In this example, expected result is
    b[] = { 'a', 'b', 'c' }
but result I gotten is
    b[] = { 'a', 'b', 'c', '\x1b', '\x28', '\42' }
                           --------------------- shift-in
This is wrong clealy.
Is this bug ?
Thank you.


company - Kanazawa Research Institute , email - ###@###.###
======================================================================