Exclude relocated classes from minimization

[Brikman]

In my case, I have a gradle project (module) without any classes at all, but there is an imported dependency with the class I wish to make my main class in the resulting jar (actually this class is ready-to-use main class with psvm inside). I relocate this class from the library into my module's classpath and then build and minimize jar to shrink out all the other library classes except that one that was just relocated. Unfortunately, relocated class does not appear in the resulting jar. Although if I disable minimization, this class will appear on the desired place, as well as tons of other classes from this library I don't need.

Here is my shadowJar snippet:

shadowJar {
    . . .
    def libraryMainClass = 'path.to.ExternalMain'
    def localMainClass = 'path.to.LocalMain'
    relocate libraryMainClass, localMainClass

    manifest {
        attributes 'Main-Class': localMainClass
    }

    minimize()
}

So how could I keep relocated class in the minimized jar?

[raccoon1515]

I'm interested too.