I made an application with Processing that I exported to a .app file. It works just fine on my computer. When I download my app from the Internet and try to open it, I get the following message:
MyApp.app is damaged and can't be opened. You should move it to the trash.
As users on this site have noticed, many Apple certificates expired on 11/11/2015, making it impossible to run these applications if Gatekeeper is enabled. Processing seems to be signing with expired signatures as well. How do I remove these signatures?