How to reference keystore file in root project to sub projects

Hi ,

I am implementing jarsigning for muti-project model . I am able to execute this signjar in single project works fine…
but When i did same to muti-project , it throws error with “> jarsigner returned: 1” .

I googled and found that subprojects are missing keystore file because i have keystore file only under root project.

How can I get reference of this file in subproject task execution instead of copying keystore file in all subprojects ?

Thanks,
Slok