Is there a better way to throw this exception?

[Weijun Wang]

Hi All

I have a method that could throw two kinds of checked exceptions and 
possibly other unchecked ones:

   void once() throws One, Two

Now I have a wrapper method that calls once() for multiple times, and 
want to throw the first exception if *all* fails. Now it looks like

   void multiple() throws One, Two {
      Exception saved = null;
      for (all chances) {
         try {
            once();
            return;
         } catch (Exception e) {
            if (saved != null) saved = e;
         }
      }
      if (saved instanceof One) {
         throw (One)saved;
      } else if (saved instanceof One) {
         throw (Two)saved;
      } else if (saved instanceof RuntimeException) {
         throw (RuntimeException)saved;
      } else {
         // Not likely, but I've already wrote so many lines.
         throw new RuntimeException(saved);
      }
   }

Is there any way I can make it shorter?

Thanks
Max