[aerogear-dev] What is our default JDK platform?

Karel Piwko kpiwko at redhat.com
Thu May 30 02:52:10 EDT 2013 

On Thu, 30 May 2013 08:37:57 +0200
Matthias Wessendorf <matzew at apache.org> wrote:

> what's wrong when some use JDK7 (e.g. SimplePush/PushEE) and some use JDK6
> (e.g. Android, OTP) ?

The consequence is that just can't run parts that use JDK7 on JDK6, so JDK6
support is dropped. 

There is nothing wrong with dropping JDK6 support if required to achieve some
functionality, I'm just trying to point out that technical decisions being done
right now will affect scope of supported environments in future.

> 
> 
> On Thu, May 30, 2013 at 8:31 AM, Karel Piwko <kpiwko at redhat.com> wrote:
> 
> > I still don't get it.
> >
> > How am I supposed to run code compiled with -target 1.7 on JDK6?
> > This will throw UnsupportedClassVersionError.
> >
> > The only way how to test on both JDK6 and JDK7 is to have code compiled
> > against
> > target 1.6. And this would require source 1.6. So, if Vert.x (1.3.1 and
> > 2.0.0.beta3 targets JDK7) and Netty (4.0.0.CR3 targets JDK6) are compiled
> > targeting JDK7, testing on JDK6 is out of scope.
> >
> > Karel
> >
> > On Wed, 29 May 2013 10:43:32 -0300
> > Bruno Oliveira <bruno at abstractj.org> wrote:
> >
> > > Security has dependency with other projects, so just in case I'm testing
> > > it against both
> > >
> > https://github.com/aerogear/aerogear-security-picketlink/blob/master/.travis.yml#L3
> > >
> > > Also OTP must support Android and the backend, testing both for the same
> > > reason.
> > >
> > > Matthias Wessendorf wrote:
> > > >
> > > >
> > > >
> > > > On Wed, May 29, 2013 at 3:39 PM, Bruno Oliveira <bruno at abstractj.org
> > > > <mailto:bruno at abstractj.org>> wrote:
> > > >
> > > >     Only for Android as Summers already mentioned.
> > > >
> > > >
> > > > yeah - I ment for JDK7 on all other things, besides Android :)
> > > >
> > > >
> > > >     Matthias Wessendorf wrote:
> > > >      > Honestly, I don't see a huge issue with JDK 7....
> > > >      >
> > > >      >
> > > >      > On Wed, May 29, 2013 at 3:35 PM, Karel Piwko <kpiwko at redhat.com
> > > >     <mailto:kpiwko at redhat.com>
> > > >      > <mailto:kpiwko at redhat.com <mailto:kpiwko at redhat.com>>> wrote:
> > > >      >
> > > >      >     Good to know. I haven't seen any enforcer plugin rule and
> > > >     compiler
> > > >      >     plugin is set
> > > >      >     to 1.6, so I though it is still on JDK6.
> > > >      >
> > > >      >     Karel
> > > >      >
> > > >      >
> > > >      >       On Wed, 29 May 2013 15:27:48 +0200
> > > >      >     Daniel Bevenius <daniel.bevenius at gmail.com
> > > >     <mailto:daniel.bevenius at gmail.com>
> > > >      > <mailto:daniel.bevenius at gmail.com
> > > >     <mailto:daniel.bevenius at gmail.com>>> wrote:
> > > >      >
> > > >      > > Hi,
> > > >      > >
> > > >      > > SimplePush Server uses Netty 4 and now also vert.x
> > > >      >     (2.0.0-beta4-SNAPSHOT)
> > > >      > > which both require Java 7. So it's not only PushEE anymore
> > that
> > > >      >     has this
> > > >      > > requirement.
> > > >      > >
> > > >      > > cheers,
> > > >      > >
> > > >      > > /Dan
> > > >      > >
> > > >      > >
> > > >      > > On 29 May 2013 15:11, Karel Piwko <kpiwko at redhat.com
> > > >     <mailto:kpiwko at redhat.com>
> > > >      > <mailto:kpiwko at redhat.com <mailto:kpiwko at redhat.com>>> wrote:
> > > >      > >
> > > >      > > > Hi,
> > > >      > > >
> > > >      > > > Most of the code is JDK6, except PushEE which requires JDK
> > 6.
> > > >      >     Android
> > > >      > > > requires
> > > >      > > > JDK 6 API as well, thanks Summers for pointing that out. The
> > > >      >     only component
> > > >      > > > that requires JDK7 is PushEE afaict.
> > > >      > > >
> > > >      > > > So, even if JDK 6 is officially EOLed (at least Oracle's
> > one),
> > > >      >     I'd prefer
> > > >      > > > to
> > > >      > > > limit our code to JDK6 features. Does it make sense?
> > > >      > > >
> > > >      > > > I can setup animal sniffer plugin to enforce JDK API
> > > >      >     conformance and
> > > >      > > > send PRs if you will - btw, do you guys already have a
> > common
> > > >      >     parent with
> > > >      > > > plugin
> > > >      > > > configuration?
> > > >      > > >
> > > >      > > > The other question is default runtime. Would you guys
> > recommend
> > > >      >     JDK7 or
> > > >      > > > JDK6?
> > > >      > > > I'm biased here to decide myself.
> > > >      > > >
> > > >      > > > Thanks,
> > > >      > > >
> > > >      > > > Karel
> > > >      > > >
> > > >      > > >
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> > > >      > > >
> > > >      >
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> > > >      >
> > > >      >
> > > >      >
> > > >      >
> > > >      > --
> > > >      > Matthias Wessendorf
> > > >      >
> > > >      > blog: http://matthiaswessendorf.wordpress.com/
> > > >      > sessions: http://www.slideshare.net/mwessendorf
> > > >      > twitter: http://twitter.com/mwessendorf
> > > >      >
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> > > >
> > > >
> > > >
> > > >
> > > > --
> > > > Matthias Wessendorf
> > > >
> > > > blog: http://matthiaswessendorf.wordpress.com/
> > > > sessions: http://www.slideshare.net/mwessendorf
> > > > twitter: http://twitter.com/mwessendorf
> > > >
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> 
>

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