Java 17 Masterplan, Part I

[cdietrich]

This is a collection of issues and thing needed to get Java 17 support

• Guice 5 Update Update to Guice 5.0.1+ xtext-core#393
• Gradle Update (This affects the build of Xtext itself and the stuff we create in the wizard Update Wizard to Gradle 7 xtext-core#1726 Gradle: Update to Gradle 6/7 & deal with deprecations in Gradle 6.x/7.x #1548 . We also dont have a way to have the gwt stuff with newer gradle. Maybe replace the gradle stuff with tycho and create maven artifacts after the fact as emf and platform do. I REALLY NEED HELP HERE
• Xbase has problems with newer JDK classes AbstractClassMirror.findMember(EObject, String) fails when inner class is used in signature of member before xtext-extras#704
• Newer platform artifacts dont support Java 8 anymore, but we need them to deal with Java 17 Update to 2022-03 platform/jdt maven artifacts #1915 Update to Java 11 as minimal Java version #1972 Move to Java 11 with 2022-12 #1804
• Java Version enum and ASTParserFactory need adaption (consider changing minParserApiLevel to 11 and asJLS default to 11, too)
• New Tycho version needed.
• We also should have a solution for the transitive deps stuff Bad Platform artifacts show up in build #1976 xtext-maven-plugin has problems when used with Tycho (will soon have) xtext-maven#146
• do we need new classgraph Bump Classgraph #2098 /asm? (for classgraph test if Follow Orbit Classgraph update #1992 will be sufficient)
• delete tests for old merableManifest or the class itself Deal with MergeableManifest/ManifestMergerTest on J16/J17 xtext-core#1744
• fix org.eclipse.xtext.common.types.access.reflect.ReflectionTypeProviderTest & co testMemberCount_16 fails with java 17 (and maybe also 16) xtext-extras#723
• Fix Xtend / Xbase CA Tests Fix ContentAssist* & Outline*Tests with Java 16/17 xtext-xtend#1226 Fix ContentAssist*Tests with Java 16/17 xtext-eclipse#1725
• Update from Gradle 7.1 to Gradle 7.2+
• Update to Gradle 7.3 for better Java 17 Support
• Release MWE and Bootstrap against it Use MWE Java 11 Milestone #2106 Use MWE Java 11 Release #2107
• Update platform artifacts (will require minimum Java 11 to run)
• provide temurin in lib ... umbrella pilelines #1995
• Problems running the example with Java 17 xtext-web#309
• Bootstrap against 2.26.0.M2 #2002 (will allow to run nightly with 17)
• Run Eclipse + Xtend morningly with J17 too #2003
• Mark Java 8,9,10 as deprecated in Wizard #2007
• [Java17] Deal with Java 12 Switch statements in J2X xtext-xtend#1268
• Use consistent tycho version across all repos (2.7.4?)
• X2J making more problems on J17 xtext-xtend#1382
• cleanup switches in tests
• grgit gradle bump

see also #1974

Many more unknown tasks and issues.

Work in progress maven repos can be found at
https://ci.eclipse.org/xtext/job/xtext-lib/job/cd_platformUpdateExp/lastSuccessfulBuild/artifact/build/maven-repository/
https://ci.eclipse.org/xtext/job/xtext-core/job/cd_platformUpdateExp/lastSuccessfulBuild/artifact/build/maven-repository/
https://ci.eclipse.org/xtext/job/xtext-extras/job/cd_platformUpdateExp/lastSuccessfulBuild/artifact/build/maven-repository/
https://ci.eclipse.org/xtext/job/xtext-xtend/job/cd_platformUpdateExp/lastSuccessfulBuild/artifact/build/maven-repository/
https://ci.eclipse.org/xtext/job/xtext-maven/job/cd_platformUpdateExp/lastSuccessfulBuild/artifact/build/maven-repository/
https://ci.eclipse.org/xtext/job/xtext-web/job/cd_platformUpdateExp/lastSuccessfulBuild/artifact/build/maven-repository/

and a p2 repo at
https://ci.eclipse.org/xtext/job/xtext-umbrella/job/cd_platformUpdateExp/lastSuccessfulBuild/artifact/build/p2-repository

[cdietrich]

Hi all,

I am pleased to announce the availability of Xtext 2.26.0.M2.
This is the first version that won't explode with Java 17 thanks to an update to Google Guice 5.0
(run with Java 17 against 8/11 target, running against 17 will follow next year when platform/jdt and other upstream dependencies also support it)
We also did some changes to how recovery builds are scheduled eclipse/xtext-eclipse#1710

Release Notes (WIP) are at https://github.com/eclipse/xtext/blob/website-master/xtext-website/_posts/releasenotes/2022-01-31-version-2-26-0.md

For both we strongly encourage you to test and give feedback.

You can find the milestone at https://download.eclipse.org/modeling/tmf/xtext/updates/milestones/S202110010541/
and http://www.eclipse.org/modeling/download.php?file=/modeling/tmf/xtext/downloads/drops/2.26.0/S202110010541/tmf-xtext-Update-2.26.0.M2.zip
and soon on Maven Central

(suitable mwe verison is 2.12.2.M1 / https://download.eclipse.org/modeling/emft/mwe/updates/milestones/S202108160852/)

Happy Xtexting

Thanks and Regards
Christian

[wborn]

Release Notes (WIP) are at https://github.com/eclipse/xtext/blob/website-master/xtext-website/_posts/releasenotes/2021-12-31-version-2-26-0.md

This link results in a 404 not found, but this one works:

https://github.com/eclipse/xtext/blob/website-master/xtext-website/_posts/releasenotes/2022-02-28-version-2-26-0.md

[cdietrich]

thx i fixed the post.

[cdietrich]

the current plan is to release this in two parts.

• part 1 is: do not explode with Java 17 against 8 and 11 runtime with 2.26
• part 2 is: support java 17 runtime, drop support for 8 runtime 2.27

[cdietrich]

part 1 is done. will move part 2 to 2.27.0

[wborn]

For both we strongly encourage you to test and give feedback.

I did some testing with 2.26.0.M3 today with openHAB on Java 17 (openhab/openhab-core#2786) and I it all worked very well. 👍 Also nice to see LSP4J is upgraded so everything uses the same Guava dependency. 🙂

[wborn]

Upgrading to Gson 2.9.0 also seems to improve Java 17 support. I tried to build openHAB with Java 17 and some tests failed which seems to be fixed in Gson 2.9.0 as it has "Fix failing to serialize Collection or Map with inaccessible constructor" (see Gson 2.9.0 release notes).

[cdietrich]

Java 17 Supported moved to 2.28

[cdietrich]

due to lack of capacity we will move this to 2.29

[cdietrich]

looks like we are going to deliver this as is in 2.29 and will do further enhancements in 2.30

[cdietrich]

created #2115 for leftovers

[cdietrich]

part I, done