ISaveHandler saveHandler, String worldName,
WorldProvider provider, WorldSettings worldSettings,
Profiler theProfiler, ILogAgent worldLogAgent)
**/
String sig = "(Lnet/minecraft/server/MinecraftServer;Lnet/minecraft/world/storage/ISaveHandler;Ljava/lang/String;Lnet/minecraft/world/WorldProvider;Lnet/minecraft/world/WorldSettings;Lnet/minecraft/profiler/Profiler;Lnet/minecraft/logging/ILogAgent;)V";
cw.newMethod(name, "<init>", sig, true);
MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "<init>", sig, null, null);
mv.visitCode();
mv.visitVarInsn(Opcodes.ALOAD, 0);
mv.visitInsn(Opcodes.DUP);
mv.visitInsn(Opcodes.DUP);