Suppress Java Warning - Do you want to run this application?

Hi,

we have private CA for issuing and signing certificates. which we use for signing our jar files and intranet sites. when these sites are calling jar files, we get java warning message "Do you want to run this application?".  I want to know how can we suppress this message, since we have lot of users. we have imported root certificate and certificate which was used for signing jar files into client's browser as well as java control panel in trusted.certs and trusted.cacerts.

following document gives details of configuring deployment.properties file, but it says user-level deployment.properties file is not configurable.