name = name.replace('.', '/');
ClassNode cn = new ClassNode(Opcodes.ASM4);
cr.accept(cn, ClassReader.EXPAND_FRAMES);
ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_FRAMES | ClassWriter.COMPUTE_MAXS);
cn.accept(cw);
/* new World constructor
* World(ISaveHandler saveHandler, String worldName,
WorldProvider provider, WorldSettings worldSettings,
Profiler theProfiler, ILogAgent worldLogAgent)
**/