On 17 Oct 2014 21:11, "Romain Manni-Bucau" <rmannibu...@gmail.com> wrote:
>
> Yes, that what i said we were not impacted even if the stack is big.
>
> Once again in theory you are right but in practise that's boring and
> creates averhead  for nothing.

You're not making a lot of sense here. Sebb explained a problem with your
approach, but your response is that he's right in theory, but that's boring?

I don't see how a multiple jar approach could work. Can you explain?

Duncan

> Le 17 oct. 2014 22:08, "sebb" <seb...@gmail.com> a écrit :
>
> > On 17 October 2014 19:08, Romain Manni-Bucau <rmannibu...@gmail.com>
> > wrote:
> > > I did it twice or more. it is not magic but the goal is to put
> > > removed/changed classes outside the core project (yes it implies some
> > > modules). this way the core part (what i call core here is what
> > > doesn't change) stays the same with same packages and only what moves
> > > changes.
> >
> > I still don't get it.
> >
> > Suppose you have the following method in the Item class:
> >
> > public int getLength()
> >
> > You want to change it to
> >
> > public long getLength()
> >
> > This is not binary compatible.
> >
> > Suppose I move the int version into a legacy jar.
> > The long version is in the core jar.
> > Both are in the same class.
> >
> > Now assume that appA uses the int version, and appB has been updated
> > to use the long version.
> >
> > I don't see how one can make this work with Maven.
> > The JVM classloader can only load a single version of the Item class.
> >
> > However appA needs one version, and appB needs the other.
> >
> > Note: I know that this can be made to work with OSGI (it uses multiple
> > class-loaders) but that is a separate issue.
> >
> > > I know it is easier to just change everything but then you can't cry
> > > cause the war does 200M to pring hello ;).
> > >
> > > Using maven pom dependencies can also make it smoother using the pom
> > > dependency as an aggregator.
> > >
> > > it wouldn't be commons which is (are actually) everywhere I wouldn't
> > > care that much but commons is so widely spread that it is a bit harder
> > > to manage (it is comparable to asm if it speaks to anyone).
> >
> >
> > >
> > >
> > > Romain Manni-Bucau
> > > @rmannibucau
> > > http://www.tomitribe.com
> > > http://rmannibucau.wordpress.com
> > > https://github.com/rmannibucau
> > >
> > >
> > > 2014-10-17 20:02 GMT+02:00 Phil Steitz <phil.ste...@gmail.com>:
> > >> On 10/17/14 6:57 AM, Romain Manni-Bucau wrote:
> > >>> Well maven showed the opposite. And this is clearly a theory vs
> > practise
> > >>> topic so not sure it does worth allimenting this thread since well
not
> > agree
> > >>
> > >> Top-posting this kind of statement does no good.  If you have a
> > >> better approach, please describe it.
> > >>
> > >> Phil
> > >>> Le 17 oct. 2014 15:52, "Matt Benson" <gudnabr...@gmail.com> a écrit
:
> > >>>
> > >>>> It's not just the broken parts that your dependencies may be using.
> > The
> > >>>> strategy Commons uses is the only way any of us know to permit
forward
> > >>>> movement while avoiding jar hell.
> > >>>>
> > >>>> Matt
> > >>>> On Oct 17, 2014 8:35 AM, "Romain Manni-Bucau" <
rmannibu...@gmail.com>
> > >>>> wrote:
> > >>>>
> > >>>>> 2014-10-17 15:28 GMT+02:00 Benedikt Ritter <brit...@apache.org>:
> > >>>>>> 2014-10-17 14:42 GMT+02:00 Romain Manni-Bucau <
> > rmannibu...@gmail.com>:
> > >>>>>>
> > >>>>>>> 2014-10-17 13:52 GMT+02:00 Gary Gregory <garydgreg...@gmail.com
>:
> > >>>>>>>> On Fri, Oct 17, 2014 at 6:24 AM, Romain Manni-Bucau <
> > >>>>>>> rmannibu...@gmail.com>
> > >>>>>>>> wrote:
> > >>>>>>>>
> > >>>>>>>>> 2014-10-17 12:23 GMT+02:00 Benedikt Ritter <brit...@apache.org
>:
> > >>>>>>>>>> Hi,
> > >>>>>>>>>>
> > >>>>>>>>>> 2014-10-16 15:30 GMT+02:00 Romain Manni-Bucau <
> > >>>>> rmannibu...@gmail.com
> > >>>>>>>> :
> > >>>>>>>>>> <snip>
> > >>>>>>>>>>
> > >>>>>>>>>>> In TomEE the stack uses [lang], then [lang3] was created and
> > now
> > >>>>>>> TomEE
> > >>>>>>>>>>> needs [lang] + [lang3] where actually it only needs [lang]
> > >>>>> features,
> > >>>>>>>>>>> ie suppose package didn't change then we wouldn't have had
any
> > >>>>> issue.
> > >>>>>>>>>>> So it means you tend to import multiple versions of the same
> > lib
> > >>>>> just
> > >>>>>>>>>>> cause few parts were broken even if it doesn't affect you.
> > >>>> That's
> > >>>>> a
> > >>>>>>>>>>> bit sad IMO.
> > >>>>>>>>>>>
> > >>>>>>>>>> If there is anything missing in lang3 that blocks you from
> > >>>>> migrating
> > >>>>>>>>>> completely, can you tell us what that is? Maybe we can fix
> > >>>> that...
> > >>>>>>>>> Issue is not in [commons] but in dependencies. The code we own
> > >>>>>>>>> migrated but not all our deps.
> > >>>>>>>>>
> > >>>>>>>>
> > >>>>>>>> I suggest you ask/Jira each dep to update their [lang] to the
> > >>>> latest.
> > >>>>>>> That
> > >>>>>>>> has worked for me in the past with different FOSS projects I've
> > made
> > >>>>> the
> > >>>>>>>> request about this and that libraries.
> > >>>>>>>>
> > >>>>>>>> Some projects will be receptive and at least reply to you right
> > >>>> away,
> > >>>>>>>> others won't. Patches help of course since will require at
least
> > >>>>> import
> > >>>>>>>> changes.
> > >>>>>>>>
> > >>>>>>> yep, main issue ATM is some can't or doesn't maitain the
version we
> > >>>>>>> use - excepted for security issues (we are bound to a EE version
> > for
> > >>>>>>> instance). It meanse it will be forgotten in few years but it
also
> > >>>>>>> means we can get the same with [lang3] and [lang4] so clearly
> > >>>>>>> something to tackle at [commons] level. We can't just ask
> > everybody to
> > >>>>>>> update each time IMHO.
> > >>>>>>>
> > >>>>>> The alternative is, that TomEE won't run at all because of
> > incompatible
> > >>>>> API
> > >>>>>> changes. I would vote for the lesser evil ;-)
> > >>>>>>
> > >>>>> No, if broken part are provided in a -legacy.jar or a
> > >>>>> -compatibility.jar there would be no issue.
> > >>>>>
> > >>>>>>>> Gary
> > >>>>>>>>
> > >>>>>>>>
> > >>>>>>>>>> Benedikt
> > >>>>>>>>>>
> > >>>>>>>>>>
> > >>>>>>>>>> --
> > >>>>>>>>>> http://people.apache.org/~britter/
> > >>>>>>>>>> http://www.systemoutprintln.de/
> > >>>>>>>>>> http://twitter.com/BenediktRitter
> > >>>>>>>>>> http://github.com/britter
> > >>>>>>>>>
> > >>>>
---------------------------------------------------------------------
> > >>>>>>>>> To unsubscribe, e-mail: dev-unsubscr...@commons.apache.org
> > >>>>>>>>> For additional commands, e-mail: dev-h...@commons.apache.org
> > >>>>>>>>>
> > >>>>>>>>>
> > >>>>>>>>
> > >>>>>>>> --
> > >>>>>>>> E-Mail: garydgreg...@gmail.com | ggreg...@apache.org
> > >>>>>>>> Java Persistence with Hibernate, Second Edition
> > >>>>>>>> <http://www.manning.com/bauer3/>
> > >>>>>>>> JUnit in Action, Second Edition <
http://www.manning.com/tahchiev/
> > >
> > >>>>>>>> Spring Batch in Action <http://www.manning.com/templier/>
> > >>>>>>>> Blog: http://garygregory.wordpress.com
> > >>>>>>>> Home: http://garygregory.com/
> > >>>>>>>> Tweet! http://twitter.com/GaryGregory
> > >>>>>>>
> > ---------------------------------------------------------------------
> > >>>>>>> To unsubscribe, e-mail: dev-unsubscr...@commons.apache.org
> > >>>>>>> For additional commands, e-mail: dev-h...@commons.apache.org
> > >>>>>>>
> > >>>>>>>
> > >>>>>>
> > >>>>>> --
> > >>>>>> http://people.apache.org/~britter/
> > >>>>>> http://www.systemoutprintln.de/
> > >>>>>> http://twitter.com/BenediktRitter
> > >>>>>> http://github.com/britter
> > >>>>>
---------------------------------------------------------------------
> > >>>>> To unsubscribe, e-mail: dev-unsubscr...@commons.apache.org
> > >>>>> For additional commands, e-mail: dev-h...@commons.apache.org
> > >>>>>
> > >>>>>
> > >>
> > >>
> > >> ---------------------------------------------------------------------
> > >> To unsubscribe, e-mail: dev-unsubscr...@commons.apache.org
> > >> For additional commands, e-mail: dev-h...@commons.apache.org
> > >>
> > >
> > > ---------------------------------------------------------------------
> > > To unsubscribe, e-mail: dev-unsubscr...@commons.apache.org
> > > For additional commands, e-mail: dev-h...@commons.apache.org
> > >
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: dev-unsubscr...@commons.apache.org
> > For additional commands, e-mail: dev-h...@commons.apache.org
> >
> >

Reply via email to