Upgrade build to Gradle 2.5 for JDK 9 support [SPR-13012]

[spring-projects-issues]

Sam Brannen opened SPR-13012 and commented

Overview

Gradle 2.5 aims to support JDK 1.9.

In fact, the Gradle 2.5 nightly build already supports building spring-test (and presumably the rest of the spring-framework) against JDK 1.9.

For details, see the comments from Adrian Kelly on the Gradle Forums.

---

Update from Luke Daley -- May 12, 2015

To be clear, it's not quite guaranteed that 2.5 works flawlessly with Java 9. We are making steps towards this; how far we get remains to be seen.

At this time we won't be doing a point release of 2.4. You could try using the http://gradle.org/nightly2 build in the interim.

We are looking to issue the first RC of 2.5 in the next two-ish weeks.

---

Affects: 4.2 RC2

Issue Links:

• Upgrade build to Gradle 2.4 [SPR-12772] #17369 Upgrade build to Gradle 2.4
• Upgrade build to Gradle 2.10 [SPR-13484] #18063 Upgrade build to Gradle 2.10
• Revisit date-time tests for compatibility with JDK 9 build 72 [SPR-13232] #17823 Revisit date-time tests for compatibility with JDK 9 build 72

Referenced from: commits 2577ac3, c1b5262, 48f330d

[spring-projects-issues]

Juergen Hoeller commented

Gradle 2.5 is GA now... Let's upgrade in time for Spring 4.2 GA still!

Juergen

[spring-projects-issues]

Sam Brannen commented

OK. I'm checking it out now...

[spring-projects-issues]

Sam Brannen commented

Initial attempt to build against Java 9 (build 1.9.0-ea-b70) with Gradle 2.5 fails (on my Mac) due to issues with AspectJ:

:spring-aspects:compileJava
[ant:iajc] /Users/sbrannen/source/spring-framework/spring-aspects/src/main/java/org/springframework/transaction/aspectj/JtaAnnotationTransactionAspect.aj [error] The type java.lang.String cannot be resolved. It is indirectly referenced from required .class files
[ant:iajc] (no source information available)
[ant:iajc] /Users/sbrannen/source/spring-framework/spring-aspects/src/main/java/org/springframework/transaction/aspectj/JtaAnnotationTransactionAspect.aj:48 [error] The hierarchy of the type JtaAnnotationTransactionAspect is inconsistent
[ant:iajc] public aspect JtaAnnotationTransactionAspect extends AbstractTransactionAspect {
[ant:iajc]               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[ant:iajc]
[ant:iajc] 2 errors
:spring-aspects:compileJava FAILED

However, this is farther than the build was getting with Java 9 using Gradle 2.4. So it now appears that Gradle itself might work with Java 9.

[spring-projects-issues]

Sam Brannen commented

The build against Java 8 with Gradle 2.5 just passed locally. So I'll go ahead and commit the upgrade to 2.5.

However, I'll leave this issue open in order to address issues with AspectJ + Java 9 + Gradle.

[spring-projects-issues]

Sam Brannen commented

Upgraded to Gradle 2.5 in GitHub commit c1b5262.

[spring-projects-issues]

Juergen Hoeller commented

We downgraded AspectJ to 1.8.x when the build didn't work on JDK 9 anyway...

So I suppose we just need to upgrade it to AspectJ 1.9.0 beta 1 again, and all will be good :-) I'll do that tomorrow.

Juergen

[spring-projects-issues]

Juergen Hoeller commented

We're using AspectJ 1.9 beta 1 again now.

I've also upgraded plenty of dependencies to recently released versions, in time for our 4.2 RC3.

Juergen