Please suggest about obfuscator

[abdun]

I developed j2me application with nokia api(Nokia 3510i sdk v0.1 beta ).
I used obfuscator( retroguard v1.1 ) with error obfuscating( run retroguard ).
I follow to document all step.

This is error message:
Exception in thread "main" java.lang.UnsatisfiedLinkError: nativeStaticInitialier
at com.nokia.mid.impl.isa.ui.style.UIStyle.nativeStaticInitialiser(Nati
e Method)
at com.nokia.mid.impl.isa.ui.style.UIStyle.<clinit>(UIStyle.java:544)
at javax.microedition.lcdui.Displayable.<clinit>(Displayable.java:247)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at a.a.a.f.a(Unknown Source)
at a.a.a.f.a(Unknown Source)
at a.a.a.f.j(Unknown Source)
at a.a.a.j$4.a(Unknown Source)
at a.a.a.j.a(Unknown Source)
at a.a.a.j.a(Unknown Source)
at a.a.a.j.a(Unknown Source)
at a.a.a.j.if(Unknown Source)
at a.a.a.s.do(Unknown Source)
at a.a.a.s.a(Unknown Source)
at RetroGuard.a(Unknown Source)
at RetroGuard.a(Unknown Source)
at RetroGuard.main(Unknown Source)

Please suggest about error or suggest another obfuscator.

Regard,
Abdun

[jalev]

There is two kind of obfuscators, one is obfuscating against the source code and other needs to have just jar file.
Sometimes when obfuscating code which contains non specific api's
some error might happend.
I have been using JBuilder 7 with mobile set 3, and when I have selected right SDK for compiling the code, also the default obfuscator is working fine (retroquard).

With other way used, you need to have Nokia SDK classes.zip placed into your setting what obfuscaator is using so it can find Nokia APIs.