XMLBeans which is an Apache project under Apache Licence has included it :
Couldn't we do the same ?
On Sun, Oct 2, 2011 at 4:29 PM, sebb <seb...@gmail.com> wrote:
> On 2 October 2011 15:20, Rainer Jung <rainer.j...@kippdata.de> wrote:
> > On 02.10.2011 15:49, sebb wrote:
> >> On 1 October 2011 14:33, Philippe Mouawad <philippe.moua...@gmail.com>
> >>> A little additional note,
> >>> There is an implementation of Concurrent map by doug lea in
> >>> called ConcurrentReaderHashMap
> >>> that has same performance as HashMap in read and a little less on
> >>> But performances are much better than ConcurrentHashMap.
> >>> So maybe a better alternative but requires concurrent-1.3.4.jar from:
> >>> -
> >> That looks interesting, however the licensing is not at all clear to
> >> me, and AFAICT we would only want the one class, not the entire jar.
> >> So it's quite a lot of extra complication for what is just a local
> > Concerning license the page says:
> > "All classes are released to the public domain and may be used for any
> > purpose whatsoever without permission or acknowledgment. Portions of the
> > CopyOnWriteArrayList and ConcurrentReaderHashMap classes are adapted
> > from Sun JDK source code. These are copyright of Sun Microsystems, Inc,
> > and are used with their kind permission, as described in this license."
> > and "this license" is another link to a PDF.
> > Legal has already resolved that one:
> > http://www.apache.org/legal/resolved.html#concurrent
> Thanks! Very useful.
> That would allow us to use the class as part of the concurrent library.
> However, we cannot use that particular source file, because it is one
> of the Sun-licensed ones.
> Not sure if there is any other way to include just the class that we need.
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