I've generated a .class file with the following script: require 'jruby/core_ext' class Example def initialize puts "Hello from jRuby-land!" end become_java! '.' end A different JVM reads the .class file into a byte array and loads it like this: Ruby runtime = Ruby.newInstance(); ClassReader cr = new ClassReader(bytes); String className = cr.getClassName().replace('/', '.'); ClassDefiningJRubyClassLoader oscl = new ClassDefiningJRubyClassLoader(runtime.getJRubyClassLoader()); Class<?> klass = oscl.defineClass(className, klass); I get a Java Class back, but I'm not able to instantiate it. If I call klass.newInstance(), I get a NullPointerException. I'm sure I've made this much harder than it should be, but I haven't found any clues digging through the jRuby project. I feel like this is really close to working, but I don't think I'll get there on my own. Any help would be greatly appreciated. Thanks!
on 2015-06-22 08:47