Don't worry, there's several! http://int3.github.io/doppio/about.html http://int3.github.io/doppio/about.html https://github.com/nurv/BicaVM https://github.com

Don't worry, there's several! http://int3.github.io/doppio/about.html http://int3.github.io/doppio/about.html https://github.com/nurv/BicaVM https://github.com/nurv/BicaVM https://github.com/YaroslavGaponov/node-jvm https://github.com/YaroslavGaponov/node-jvm The doppio demo even lets you run javascript-in-java-in-javascript (rhino->doppio->browser)!