[concurrency-interest] Re: Question about Hashtable and ConcurrentHashMap.

Martin Buchholz Martin.Buchholz@Sun.COM
Wed, 06 Oct 2004 22:16:57 -0700

Bino, I've taken the liberty of forwarding your question to the

In my opinion... they are not compatible *enough*, and the
performance advantage is probably only significant when
concurrency is high.


Bino George wrote:
> Hi Folks,
>           I have been reading that ConcurrentHashMap is compatible
> with Hashtable and is mush faster than Hashtable. So is there any reason
> why we could not replace the implementation of Hashtable with that of
> ConcurrentHashMap ? Obviously there must be a reason why it was not
> done ? Can you tell me what the reason is ?
> Thanks,
> Bino.