[wildfly-dev] WildFly Java 9 support & CI job

[Tomaž Cerar]

I can take a look at it.
As long as we don't use any non public app in tests suite, it should work.

But this still wouldn't catch issues like this, as we wouldn't not have
deployments with module-info.class present.

But it would certainly have its benefits.

--
Tomaž

On Fri, 9 Mar 2018 at 00:13, Stuart Douglas <stuart.w.douglas at gmail.com>
wrote:

> Could we look at making one or all of the test suite modules compile using -target
> 9 ? This was the server is still built the same way, but it should pick up
> issues like this in testing.
>
> Stuart
> On Wed, Mar 7, 2018 at 8:35 PM, Tomaž Cerar <tomaz.cerar at gmail.com> wrote:
>
>> Hey Jaikiran,
>>
>>
>>
>> yes there are known issues with Jandex and also with few proposed fixes
>> but we didn’t manage to get them merged and/or released.
>>
>>
>>
>> When it comes to -source / -target 9 compiling there is a reason why we
>> do not use it. Yet!
>>
>> When one switches to compile for -target 9, whole behavior of compiler
>> changes as result we can no longer access non public classes or modules.
>>
>> Unless we add module-info.java for problematic maven modules.
>>
>> But adding module-info.java means all (maven) compile dependencies of
>> said maven module need to be jigsaw compatible, which at this point is not
>> really there yet.
>>
>>
>>
>> Currently we have to problematic modules that cause issues with this.
>>
>> “cli” in wildfly-core, and “security” in wildfly repository.
>>
>>
>>
>> Both of them have quite big dependency tree where many of its jars are
>> not jigsaw compatible.
>>
>>
>>
>> I do have working branch that has quite some work done on this subject,
>> but until we get dependencies fixed to not violate jigsaw rules, it cannot
>> be completed.
>>
>>
>>
>> Here is non complete list of Jira issues that track jigsaw problems in
>> our dependencies that prevent cli and security to be compiled with target =
>> 9
>>
>> https://issues.jboss.org/browse/SECURITY-986
>>
>> https://issues.jboss.org/browse/SECURITY-985
>>
>> https://issues.jboss.org/browse/ISPN-8844
>>
>> https://issues.jboss.org/browse/AESH-458
>>
>> https://issues.jboss.org/browse/AESH-457
>>
>>
>>
>> So in short our support of JDK9/10 is currently scoped only to using it
>> as runtime JDK of the server. None of the jigsaw related features will work
>> in deployments.
>>
>> Said all that, jandex problem is real, we will fix it.
>>
>>
>>
>> --
>>
>> tomaz
>>
>>
>>
>>
>>
>> *From: *Jaikiran Pai <jai.forums2013 at gmail.com>
>> *Sent: *sreda, 07. marec 2018 06:11
>> *To: *wildfly-dev at lists.jboss.org
>> *Subject: *[wildfly-dev] WildFly Java 9 support & CI job
>>
>>
>>
>> It appears that the recent release of WildFly 12.0.0.Final has a major
>> issue with Java 9 support for deployments. More specifically, if the
>> application being deployed is compiled using Java 9 JDK then the annotation
>> processing (through Jandex) causes such classes to skip the annotation
>> indexing, effectively missing any annotation information present on them.
>> There's a JIRA for it here[1] and I *think* another user here in the
>> forum thread[2] is affected by the same issue. I see that Stuart is already
>> upgrading Jandex which includes a fix, so this mail isn't really about
>> fixing this issue.
>>
>> Given the ease with which this got reproduced and the fact that we missed
>> it in our regular integration job for Java 9 [3], I looked around to see
>> why we couldn't catch this earlier. It looks like the WildFly pom.xml uses
>> org.jboss:jboss-parent:25 [4] which fixes the target class version of the
>> compilation to 1.8. As a result, even though the CI job uses Java 9 to
>> compile the application sources (in test cases) it ends up with a class
>> version to Java 8 and that explains why these issues weren't caught earlier.
>>
>> So would it be possible to have another variant of this CI job which
>> passes Java 9 as the target version for compiled sources, as a system
>> property value (the pom.xml of jboss-parent allows the value to be
>> configured through properties)?
>>
>> [1] https://issues.jboss.org/browse/WFLY-9961
>>
>> [2] https://developer.jboss.org/thread/277401
>>
>> [3]
>> https://ci.wildfly.org/viewType.html?buildTypeId=WF_MasterLinuxJdk9&branch_WF=__all_branches__
>>
>> [4]
>> http://repo1.maven.org/maven2/org/jboss/jboss-parent/25/jboss-parent-25.pom
>>
>> -Jaikiran
>>
>>
>>
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>
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