[wildfly-dev] Moving WildFly 9 to Java 8?

[Jason T. Greene]

Why don't we start with just moving the PR testing stuff to 8? And then have a one off 7 run. 


Sent from my iPhone

> On Feb 11, 2015, at 6:15 PM, Jason T. Greene <jason.greene at redhat.com> wrote:
> 
> I don't understand the hurry.
> 
>> On Feb 9, 2015, at 3:20 PM, Tomaž Cerar <tomaz.cerar at gmail.com> wrote:
>> 
>> Hi folks,
>> 
>> we agreed that WildFly 10+ is going to require Java 8, given that its release date is planned well after JDK7 will be EOL-ed. [1]
>> 
>> Looking at all discussion and new projects / components already require JDK8 (Eltryon, new WildFly client, Weld 3,...) for development.
>> I was wondering if we could move WildFly 9 to Java 8 as well? 
>> 
>> According to current release plan WF9 should be release around the same time JDK7 is EOL-ed (April 2015) [1]
>> 
>> Pros of moving to JDK8 early:
>> - components can use JDK8 eariler --> better testing 
>> - supporting JDK9 will be easier (-XX:MaxPermSize fails to start JVM on 9)
>> - support for TLS SNI (think of it as virtual hosts for SSL)
>> - better ciphers and many other security related improvements
>> - nashorn (fast javascript engine)
>> - better concurrency libs
>> - easier testing, one less JDK combo to test on CI
>> 
>> and of course all of the language improvements, lambda ftw!
>> 
>> Cons of moving early
>> 
>> - back porting of code could be impaired 
>> - there is currently no non beta release of IBM JDK8 
>> 
>> There are probably other pros & cons but in general I think it would be better to upgrade early as there will be many
>> hidden issues with new Java 8 features people want to use but are server doesn't understand currently, mostly here
>> are features like enhanced type annotations and default methods.
>> 
>> This problem are and will creep up more and more often as adoption of Java 8 is quite good already [2] and still rising.
>> 
>> so what do you guys think? Should we move for WildFly or should we wait for 10 as planned?
>> 
>> --
>> tomaz
>> 
>> 
>> [1] http://www.oracle.com/technetwork/java/eol-135779.html
>> [2] http://jaxenter.com/java-2-111936.html
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