[hibernate-dev] Java 9: progress on compatibility

[Sanne Grinovero]

Some more progress by simply setting this environment variable:
  GRADLE_OPTS="-XaddExports:java.security.sasl/com.sun.security.sasl.digest=ALL-UNNAMED
-XaddExports:java.security.sasl/com.sun.security.sasl=ALL-UNNAMED
-XaddExports:jdk.compiler/com.sun.tools.javac.api=ALL-UNNAMED
-XaddExports:jdk.unsupported/sun.reflect=ALL-UNNAMED -addmods
java.xml.bind"

But it's getting tricky:

Caused by: compile error: javassist.NotFoundException: java.lang.String
   at javassist.compiler.Javac.compileBody(Javac.java:229)
   at javassist.CtBehavior.setBody(CtBehavior.java:438)
   ... 76 more

This seems to be caused by the following plugin, which I'm not familiar with:
 - org.hibernate.build.gradle.inject.InjectionAction.execute(InjectionAction.java:62)
Is this something which we could disable/skip/remove for now, or
update to not require Javassist?

Thanks,
sanne

On 12 June 2016 at 20:56, Sanne Grinovero <sanne at hibernate.org> wrote:
> On 11 June 2016 at 18:47, Sanne Grinovero <sanne at hibernate.org> wrote:
>> On 11 June 2016 at 18:25, Steve Ebersole <steve at hibernate.org> wrote:
>>> The ORM failure seems to be a Gradle/JDK9 issue.  Any idea about that?
>>
>> Not sure, that's a new one :)
>> It could be related to https://issues.gradle.org/browse/GRADLE-3287 ?
>>
>> Might be worth trying to upgrade to Gradle 2.12 .. I'm not at a
>> terminal at the moment, I could try later.
>
> I've upgraded to Gradle 2.13, the pull request is here:
>  - https://github.com/hibernate/hibernate-orm/pull/1417#
>
> It solved that specific issue, but it's not enough. I'm still trying
> to hack a workaround for the next step, but in the meantime that PR
> could be considered independently.
>
> I could use some pointers with Gradle and the custom plugins we use;
> essentially we need to pass some additional JVM flags, including to
> javac, like here:
>  - https://github.com/hibernate/hibernate-orm/commit/5e6a8ea754e3c4c59925fe7f824092490efc008b
>
> But the failure happens during:
>  Execution failed for task ':hibernate-core:xjc'
>
> and I'm not sure how to override the JVM flags for that plugin execution.
>
> Thanks,
> Sanne
>
>
>>
>>>
>>> On Fri, Jun 10, 2016, 4:39 PM Sanne Grinovero <sanne at hibernate.org> wrote:
>>>>
>>>> Hi all,
>>>> please try to have a look at this page when you have a moment:
>>>>  - http://ci.hibernate.org/view/JDK9/
>>>>
>>>> Hibernate Search is working, and it shouldn't be too hard to get the
>>>> others "green" as well.
>>>>
>>>> I've disabled some integration tests to get there, notably:
>>>>  - OSGi tests: Karaf is not ready for it.
>>>>  - Documentation build: Asciidoc will probably need an update.
>>>>  - WildFly integration tests: the WildFly team is aware, will need a
>>>> minor upgrade.
>>>>
>>>> I don't believe these issues are relevant, so I'm satisfied that all
>>>> other tests working fine mean that the project will pretty much work
>>>> out of the box for end users - at worst their container won't work,
>>>> but that's not our responsibility to test for.
>>>>
>>>> Could you all contribute a bit to get all projects show "green" on this
>>>> page?
>>>>
>>>> Some "workarounds" you might want to apply:
>>>>  - the Logger interfaces won't compile because of a known issue, this
>>>> can be worked around for now by having the compilation phase also
>>>> explicitly depend on this artifact:
>>>>
>>>> https://github.com/hibernate/hibernate-search/blob/master/pom.xml#L878-L883
>>>>  - you'll have a ClassNotFoundException on JAXB usage unless you set
>>>> this JVM flag:
>>>> https://github.com/hibernate/hibernate-search/blob/master/pom.xml#L1429
>>>> (This one is not a bug but will be required to be set by end users as
>>>> well - or we provide our own XML parser, that might be more user
>>>> friendly).
>>>>
>>>> As far as I know, other issues with the build tools have been solved
>>>> already - including Gradle.
>>>>
>>>> Thanks,
>>>> Sanne
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