     call_counts[method_name] ?= 0
 
     start = (new Date).getTime()
-    old_fn.call this, arguments...
+    old_fn.apply this, arguments
     end = (new Date).getTime()
 
     timings[hash] += end - start

    unless cname?
      console.error "No main class provided and no Main-Class found in #{argv.jar}"

  if argv.profile?
    run_profiled rs, cname, java_cmd_args, argv.hot
  else
    jvm.run_class rs, cname, java_cmd_args, null, argv.compile

  methods.Method::run_bytecode = profiled_fn(methods.Method::run_bytecode)
  methods.Method::run_manually = profiled_fn(methods.Method::run_manually)

  runner()

  self_timings = {}
  total_timings = {}
