[hibernate-dev] Hibernate ORM and Java 8 usage

[Gunnar Morling]

@Vlad, what Java 8 syntax specifically are you using in the user guide
tests (examples?)?

I like the idea of using a current syntax in usage examples, to give
the guide a current look and show that our APIs play well with current
Java versions (while staying compatible with older ones).



2016-01-12 10:51 GMT+01:00 Sanne Grinovero <sanne at hibernate.org>:
> +1 for Vlad's proposal to use the same JDK for tests and main code in
> a given module.
>
> Infinispan requires Java8 at runtime too, so that module should be the
> only one to use Java8?
>
> On 12 January 2016 at 07:55, Vlad Mihalcea <mihalcea.vlad at gmail.com> wrote:
>> I used Java 8 syntax in the User Guide tests as I remembered that tests can
>> use it, but I also agree that this is a rather strange move.
>> Since we need to support Java 1.6, maybe it's a better idea to use the
>> latest JDK just in the modules where we have no other choice.
>> For testing, I think that 1.6 is just fine and I could easily change those
>> tests to remove the 1.8 dependency.
>>
>> So I vote for using the same JDK for both main and test in a particular
>> module.
>>
>> Vlad
>>
>> On Mon, Jan 11, 2016 at 11:35 PM, Steve Ebersole <steve at hibernate.org>
>> wrote:
>>
>>> The former.  People commit things that already assume the move to Java 8
>>> locally to build (and test).  But at the moment we have not formalized
>>> that, and so that causes problems when we import into an IDE - the imported
>>> IDE project is built for 1.6 compliance and so everything we try in the IDE
>>> fails.
>>>
>>> On Mon, Jan 11, 2016 at 3:33 PM Gunnar Morling <gunnar at hibernate.org>
>>> wrote:
>>>
>>> > Hey,
>>> >
>>> > > or we move to Java 8 and rely on
>>> > > AnimalSniffer to make sure we are still compatible.
>>> >
>>> > WDYM by "move to Java8" exactly? Requiring it at Hibernate's build
>>> > time, or also at runtime in user apps?
>>> >
>>> >
>>> > 2016-01-11 19:49 GMT+01:00 Steve Ebersole <steve at hibernate.org>:
>>> > > The use of Java 8 features in Hibernate ORM is starting to expand.
>>> > Luckily
>>> > > it is still constrained to just tests.
>>> > >
>>> > > However these usages make development in an IDE more and more
>>> difficult.
>>> > > Previously this was isolated to hibernate-infinispan.  Now[1] this has
>>> > > crept into hibernate-entitymanager.  We need to have a plan here.
>>> Either
>>> > > we stop using Java 8 anywhere, or we move to Java 8 and rely on
>>> > > AnimalSniffer to make sure we are still compatible.
>>> > >
>>> > > Votes?  Other options?
>>> > >
>>> > > [1]
>>> > >
>>> >
>>> https://github.com/hibernate/hibernate-orm/commit/c2ece0108ed52d5e3a227ed0150cfb5cb1a76101
>>> > > _______________________________________________
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>>> > > hibernate-dev at lists.jboss.org
>>> > > https://lists.jboss.org/mailman/listinfo/hibernate-dev
>>> >
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