Interesting, this is by Rémi Forax who is involved in the Asm Java bytecode manipulation library[1] as well as hacking on all kinds of other Java related stuff.

Interesting, this is by Rémi Forax who is involved in the Asm Java bytecode manipulation library[1] as well as hacking on all kinds of other Java related stuff. He's got a blog post here with some initial performance tests: http://weblogs.java.net/blog/forax/archive/2011/09/04/hotspot-loves-phpreboot http://weblogs.java.net/blog/forax/archive/2011/09/04/hotspo... Looks really fast when using type annotation (edit: faster than Java?!). Interestingly he is using the upcoming -hsx Hotspot server flag which makes a big difference in speed. [1] http://asm.ow2.org/ http://asm.ow2.org/