4 ms·This is important if you want to use JRuby.by arockwell 15y agoThis is important if you want to use JRuby.nupark2 15y agoThere's a protobuf java library.andrewvc 15y agoAnd a jruby messagepack libraryrandrews 15y agoExactly! Also IronRuby. Or MRI on Windows for a lot of extensions, which just won't build there.