Blackberry simulator not creating COD file

This is an answer to anyone having problems getting a program to appear in the Blackberry simulator or problems generating a COD file.

I have been programming in JAVA using the Eclipse IDE and my program was working fine in the BB simulator. After creating a new package and adding more class files to my project, I noticed that my changes were not being reflected in the simulator. After countless hours trying to solve the problem (cleaning, running clean.bat, deleting cod files, creating a new workspace, etc. - nothing worked) I just discovered an answer on a forum that solved my problem:

http://supportforums.blackberry.com/t5/Java-Development/Eclipse-I-O-Error-Cannot-run-program-quot-jar-quot-CreateProcess/td-p/37701

I had 116 files in my project. I deleted two packages to get the number of classes under 100 and, voila, a new COD file was generated and my changes are reflected now in the Blackberry simulator. This is obviously a bug that RIM needs to address. I wasted days debugging this until I found a solution.

Hoping this helps some开发者_高级运维one with similar problems.

It's been a while from my Blackberry days, but there are two things you should check:

• Check that you do not have a large class file. A single cod file is limited to 64K, so if a class file is more than 20-30K sometimes the compiler is not smart enough to organize the files in several code files.
• Compile using ant build file, see here http://bb-ant-tools.sourceforge.net/docs