error regarding StringBuilder class

[sankar ganesh]

hi,
i downloaded one MP3 decoder form the net and work it with WTK2.2.It show Exception and i came to know that it only works under WTK2.1.i downloaded WTK2.1 version and tried to compile it.The following error comes:
C:\WTK21\apps\JLayerME\src\javazoom\jlme\player\player\MyPlayerMIDlet.java:116: cannot access java.lang.StringBuilder
file java\lang\StringBuilder.class not found
dataSource = new Mp3ToWav("/" + file,true);
^
com.sun.kvem.ktools.ExecutionException

i'm trying toovercome this error but don't know abt StringBuilder class specification.If anyone knows how to overcome or how to work with the StringBuilder class then please guide me to overcome this pbm.
thanx in advance
sankar

[Marcin Zduniak]

It is because you are using JDK 5.0. Make look at this blog for some advice: http://blog.xenocid.net/archives/2005/04/stringbuilder_i.html

Regards.

[sankar ganesh]

thank u friend