I compiled sources of helloworldplus demo application with javac 1.4.2_06. I can install it on Emulator but it is impossible to run it. No error is generated - after launch nothing happens.

The original jar of hello application can be loaded and run successfully. The only difference is that in my jar are classes compiled by me, JAD and manifest are the same except jar size parameter in jad.

Does anybody know how to fix it?
Where can I find any log?

I'm using Emulator from S60 3rd SDK for MIDP.