Sun's ISO-2022-JP decoder has a bad bug that causes it to go into an
infinite loop. I need a simple fix (I don't want to build my own
version of the JDK or anything).

This code demonstrates the problem:
import javax.mail.internet.*;

class JP {
  public static void main(String args[]) throws Exception {
    String s = "=?ISO-2022-JP?B?GyRAGyRCJT8lJiVzJWEhPCVrGyhC?=";
    System.out.println(MimeUtility.decodeText(s));
  }
}


% java -version
java version "1.4.2"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2-b28)
Java HotSpot(TM) Client VM (build 1.4.2-b28, mixed mode)

Here is a stack trace (from kill -QUIT). The code seems to be stuck in
decodeLoop().

"main" prio=1 tid=0x08052990 nid=0x25c5 runnable [bfffd000..bfffd6fc]
        at sun.nio.cs.ext.ISO2022_JP$Decoder.decodeArrayLoop(ISO2022_JP.java:147)
        at sun.nio.cs.ext.ISO2022_JP$Decoder.decodeLoop(ISO2022_JP.java:344)
        at java.nio.charset.CharsetDecoder.decode(CharsetDecoder.java:536)
        at java.lang.StringCoding$CharsetSD.decode(StringCoding.java:186)
        at java.lang.StringCoding.decode(StringCoding.java:224)
        at java.lang.String.<init>(String.java:320)
        at javax.mail.internet.MimeUtility.decodeWord(MimeUtility.java:693)
        at javax.mail.internet.MimeUtility.decodeText(MimeUtility.java:448)
        at JP.main(JP.java:7)

Hi,
     I tried this with JDK 1.3.1 . It seems to work quite alright .

regards

Remesh
http://www.i-unknown.net