To really get crazy, another thing Gentoo likely won't see unless someone steps up. OpenJ9 alternative to HotSpot.
https://en.wikipedia.org/wiki/OpenJ9 https://github.com/ibmruntimes/openj9-openjdk-jdk9 https://www.slideshare.net/DanHeidinga/j9-under-the-hood-of-the-next-open-source-jvm -- William L. Thomson Jr.
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