RFR: 8242039: Improve jlink VersionPropsPlugin

[Claes Redestad]

On 2020-04-03 15:36, Langer, Christoph wrote:
> Eventually I came up with this result and then I also asked myself the question whether the new complexity was worth the benefit. I answered myself with a yes (though definitely not a clear one ��), and that's why I proposed the change. After all, the new complexity isn't huge...

I don't mind the cleaned up patch[1].

It also gets rid of the constants being replaced, which I assume will
otherwise be loaded and kept on the heap and in the string table
forever. While unlikely to cause confusion, I'd argue that not finding
the value replaced in heap dumps might be of some value.

/Claes

[1] http://cr.openjdk.java.net/~clanger/webrevs/8242039.1/