Concurrent Hash Map javadoc question

[Martin Buchholz]

I think this doc difference is intentional.

In case of a retry loop, the value may have changed in the case of
computeIfPresent or compute and so the function must be called again with
the new value.

On Tue, Sep 17, 2019 at 4:36 PM Martijn Verburg <martijnverburg at gmail.com>
wrote:

> Hi Keith,
>
> I think this is one for concurrency interest to answer.
>
> Cheers,
> Martijn
>
>
> On Tue, 17 Sep 2019 at 12:48, Keith Turner <keith at deenlo.com> wrote:
>
> > The javadoc for ConcurrentHashMap.computeIfAbsent() states the
> > remapping function is applied at most once.  The functions
> > computeIfPresent() and compute() do not explicitly state if the
> > remapping functions could possibly be run multiple times. Does anyone
> > know if computeIfPresent() and compute() are guaranteed to only run
> > the remapping functions at most once?  If so, should the javadoc be
> > updated?
> >
> > Thanks,
> >
> > Keith
> >
>