Blackberry bar signing error

Question

I have an android application and want to port it to BB 10 device. I have converted it to bar file with command line tools and configured my computer for signing application. But when i am trying to sign application it gives error.

Command Line :

 batchbar-signer MyFile.bar author.p12 password

It gives error

blackberry.tools.SDK\lib/KeyTool.jar
Error: null 

Also tried online tools to sign my application but online tools gives error,too

Installed blackberry plug-in for Eclipse as an alternative , also it doesnt work.

My ADT Version : 21.0.1 JRE Versiyon : 7u21 Blackberry SDK : 1.5.2

Waiting for your help

THANKS.

Answer 1

Believe the reason currently for the error with signing the application is that you are using Java 7 version while BlackBerry current Java support is Java 6 - spec docs

Does it continue giving you an error if you change to an earlier Java versions?