Deploy Java code to BlackBerry device without signing keys

I want to deploy code directly to a BlackBerry device, bu开发者_StackOverflow中文版t I do not have any RIM code signing keys. Is there a way to do this without the keys?

Currently I am using the .cod files to deploy on a BlackBerry device simulator.

You only need signing keys if you use BlackBerry APIs that require them (as noted in the javadocs for the classes and/or methods that require them). Otherwise, you can build, deploy, and test your application on the phone just fine.