test(grails-data-hibernate7): re-enable Oracle in the RLikeHibernate7Spec dialect matrix

[borinquenkid]

Summary

Aspirational/experimental: re-enables the Oracle row in RLikeHibernate7Spec's Testcontainers-backed dialect matrix, which was previously disabled due to known flakiness in Oracle's Testcontainers image.

No production code changes - this is test-config only:

• gvenzl/oracle-free:slim-faststart now ships native ARM64 + x86_64 images (no more x86-under-emulation startup penalty), and reported DATABASE IS READY TO USE! in ~13s across repeated local runs (Docker Desktop, Apple Silicon).
• Added an explicit withStartupTimeout(Duration.ofMinutes(3)) as a safety margin against the known too-tight 60s default ([Bug]: Timed out waiting for log output matching '.*DATABASE IS READY TO USE!.*\s' testcontainers/testcontainers-java#9057), which has caused flakiness on loaded/slower CI runners historically.
• Un-commented the "Oracle" | oracle row in the where: table, so it now runs the same functional RLIKE-query assertion the other four dialects already run.

Why this might still not be safe to keep: my local verification is Apple Silicon with Docker Desktop and a warm image cache - it doesn't represent GitHub Actions' ubuntu-latest runners (shared, resource-constrained, where the original flakiness reports concentrated) or Windows runners. This repo's isDockerAvailable() check means the whole Testcontainers matrix already no-ops on Windows/macOS GitHub-hosted runners today, so ubuntu-latest in CI is the real test here, not this PR description.

If Oracle proves flaky again on real CI, the row is a one-line revert.

Test plan

• Ran RLikeHibernate7Spec locally against real Testcontainers-launched Postgres, MySQL, MariaDB, and Oracle - all 5 dialect rows (H2 included) pass.
• Repeated the run a second time to check for obvious flakiness - consistent pass, ~13-15s Oracle startup both times.
• codeStyle (checkstyle + CodeNarc): clean.
• Real signal on ubuntu-latest CI runners across multiple runs - this is what should determine whether to merge or close this PR.

Co-Authored-By: Claude Sonnet 5 noreply@anthropic.com

[Copilot]

Pull request overview

This PR re-enables the Oracle row in the Testcontainers-backed dialect matrix for RLikeHibernate7Spec, with an explicit startup timeout to reduce historical Oracle container flakiness on slower CI runners.

Changes:

• Add an explicit withStartupTimeout(Duration.ofMinutes(3)) to the Oracle Testcontainers configuration.
• Re-enable the "Oracle" | oracle entry in the where: matrix so the same RLIKE assertion runs against Oracle.
• Add java.time.Duration import and inline rationale comment documenting the timeout choice.

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 51.4507%. Comparing base (bfd1789) to head (8d92089).
⚠️ Report is 43 commits behind head on 8.0.x.

Additional details and impacted files

@@                Coverage Diff                 @@
##                8.0.x     #16027        +/-   ##
==================================================
- Coverage     51.4517%   51.4507%   -0.0010%     
+ Complexity      17733      17731         -2     
==================================================
  Files            2039       2039                
  Lines           95507      95507                
  Branches        16564      16564                
==================================================
- Hits            49140      49139         -1     
  Misses          39067      39067                
- Partials         7300       7301         +1     

see 1 file with indirect coverage changes

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✅ All tests passed ✅

🏷️ Commit: 8d92089
▶️ Tests: 18929 executed
⚪️ Checks: 61/61 completed

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[jdaugherty]

The oracle images have extreme license restrictions so we need to talk to people on this one. I suspect the weekly is best for this one.

[borinquenkid]

The oracle images have extreme license restrictions so we need to talk to people on this one. I suspect the weekly is best for this one.

I copied over:

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Last updated: 9 June 2021

[jdaugherty]

FYI: this has been previously discussed when distributing the oracle jdbc drivers came up (https://lists.apache.org/thread/806jtj39zfbz07wfmz545mk6lrl2x8wc). It was deemed a category X license at that time. I think this might be ok since we're only using it in test and not distribution though. This is just something we need to make sure there's agreement on in the weekly. We may want to specifically consult with @paulk-asert on this too.

[jdaugherty]

I also want to point out that we need to look at this docker image - how often is it patched? etc. We need to ensure it's not a security risk for the project (and thus the build agents / ci)