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Grails 8 Support: Java 21 baseline + Flying Saucer 10 #64
Description
Summary
Propose starting an 8.0.x line of the plugin for Grails 8 support. This would also raise the Java baseline to 21 and upgrade Flying Saucer to 10.x.
Why these go together
- Grails 8 requires Java 21
- Flying Saucer 10.x requires Java 21
7.0.x stays on Java 17/Flying Saucer 9.x for maintenance.
Expected changes
Current (7.0.x) |
Target (8.0.x) |
|
|---|---|---|
| Java | 17 | 21 |
| Grails | 7.0.9 | 8.0.0 |
| Gradle wrapper | 8.14.3 | 9.7+ |
| Groovy | 4.x | 5.1.3 |
| Spring Boot | 3.x | 4.1.1 |
| Flying Saucer | 9.9.5 | 10.x |
Known Grails 8 breaking change that affects us:
GrailsWebMockUtilis no longer on the production classpath. The example app's integration tests (RenderEnvironmentSpec,XhtmlDocumentServiceSpec) use it and will need it pulled in throughtestFixtures.
Activity
billgonemad commentedon Oct 10, 2026
@sbglasius OK to start a 8.0.x branch?
sbglasius commentedon Oct 12, 2026
@billgonemad I see you have already made a 8.0.x branch. Please do the upgrade on a branch from that (like upgrade/grails-8.0.0) so we can merge back to 8.0.x. I will promote 8.0.x to the default branch as soon as it is released
billgonemad commentedon Oct 12, 2026
@sbglasius I accidentally pushed the 7.0.x -> 8.-.x merge (#63) directly to the 8.0.x branch instead of through a PR. It is a clean merge with only the version conflict resolved (kept the 8.0.0-SNAPSHOT). If you would rather we undo that and create a PR, let me know and we can revert and redo.
sbglasius commentedon Oct 12, 2026
I suggest to remove the current 8.0.x and just do a upgrade branche from 7.0.x and I'll make the 8.0.x branche when the upgrade is ready 🤗
billgonemad commentedon Oct 14, 2026
@sbglasius I've pushed the upgrade/grails-8.0.0 branch.