void JavaCalls::call(JavaValue* result, methodHandle method, JavaCallArguments* args, TRAPS) {

  {- -------------------------------------------
  (1) (assert)
      ---------------------------------------- -}

      // Check if we need to wrap a potential OS exception handler around thread
      // This is used for e.g. Win32 structured exception handlers
      assert(THREAD->is_Java_thread(), "only JavaThreads can make JavaCalls");

  {- -------------------------------------------
  (1) os::os_exception_wrapper() 経由で, JavaCalls::call_helper() を呼び出す.

      (なお, os::os_exception_wrapper() を経由するのは, 
       この時点までに積まれたスタック内のネイティブコードが
       どこかで勝手に独自の例外ハンドラをインストールしているかもしれないため)
      ---------------------------------------- -}

      // Need to wrap each and everytime, since there might be native code down the
      // stack that has installed its own exception handlers
      os::os_exception_wrapper(call_helper, result, &method, args, THREAD);
    }