How to skip jar signin process in Maven through Netbeans settings

Hello,
I've a Maven 3.0 project built in NetBeans 8.1. 
My pom.xml includes the jar files  signing and everything is working.

Somethimes I work locally and I want to compile the same project but not to sign the targets.
Is there a way to skip the maven signing phase avoiding to modify the pom.xml?

Can I put something like  "jarsigner.skip=true" in some conf in Netbeans?
I attach an extract of my pom.xml.

Thank you
Carlo




Attachments: 
http://forums.netbeans.org//files/pom_526.zip