I\'ve just upgraded JRE to 7u45, and my applet receives a warning message on start-up, saying \" This application will be blocked in a future Java security update because th
I was also facing this problem and i resolved this problem in my application by just adding the certificate as a "Secure Site" under java control center.
The error message ("The application will be blocked ... Permission attribute") is so misleading and it acts more like a generic error message and has nothing to do with Permissions attribute really present in the jars or not. This to me is a bug and hopefully java will fix it in the next release.
Exact steps to remove this error message:
1) javaws -viewer
2) Open Security tab
3) Clik on "Manage Certificates"
4) Select Certificate Type as "Secure Site"
5) Add the application certificate.