Device identifier of Android emulator

Question

I want to test in the emulator an app that depends of the device identifier (ANDROID_ID).

I currently obtain device identifier with the following code:

Answer 1

If you want non-null emulator uuid, then start the emulator like this:

emulator -avd jbx86 -prop emu.uuid=5ec33f90-a471-11e2-9e96-0800200c9a66