[Makefile] [Linter] Outline utilities; be more flexible
[Makefile] [Linter] Outline utilities; be more flexible

The improved algorithm allows importing java.util.Map even if one only
uses Map.Entry.

CylonicRaider/Instant,CylonicRaider/Instant,CylonicRaider/Instant,CylonicRaider/Instant,CylonicRaider/Instant