This isn’t mine, but I just saw it on /r/programming and thought I’d share here.
Github: https://github.com/boundary/fasttuple
Blog post: http://boundary.com/blog/2014/05/15/dynamic-tuple-performance-on-the-jvm/
There’s been a lot of talk about value types and the like recently, and here’s another related development: heterogeneous primitive tuples bia bytecode generation. At least mildly ingenious, what do you guys think?