How to skip some jars in multi jars

[pcdlrzxx]

I have an Eclipse 4 plug-in project, cause there is a feature module which would be packaged into a jar by Maven Tycho. Meanwhile there are also other modules going to be packaged as jars, such as plugins and fragments.

But when I add the proguard-maven-plugin and execute maven packaging, everything works fine until the feature jar. It throws an error likes below, and I take many tries(add inFilter tag, exclusions tag, and so on) to solve it but failed.

So, can anybody tell me how to skip certain jar(s) when there are mutil jars in a project, or any way to solve the problem below is also okay.

Thanks a lot!