Is there a way to prevent IDEA from explicity adding JRE jars to the classpath?

Hi,
I'm having trouble with an application that scans the classpath for  plugins. It assumes that any jars in the classpath are potential  plugins, and for some reason IDEA makes a point of explicitly adding the  JRE jars to the classpath rather than letting them be detected  normally. I can't change the application's plugin behavior. I've found a  couple workarounds for this, but I'm pretty frustrated that it's even an  issue. Is there a way to prevent IDEA from adding the JRE jars in the  first place?
Thanks