Move test classloaders to Java

[AlexeyKuznetsov-DD]

What Does This Do

Moves ClassLoader test helpers from Groovy to Java and removes the obsolete Java 8 Groovy compiler overrides.

Motivation

Groovy generates synthetic accessors that reference java.lang.Module, breaking Java 8-compatible test bytecode.

Additional Notes

Validated by compiling both affected modules, running CI Visibility tests on Java 8, and running the affected exception-handler tests on Java 17.

[datadog-prod-us1-3]

🎯 Code Coverage (details)
• Patch Coverage: 100.00%
• Overall Coverage: 56.58% (-0.46%)

_{This comment will be updated automatically if new data arrives.
🔗 Commit SHA: 5dbe077 | Docs | Datadog PR Page | Give us feedback!}

[datadog-prod-us1-3]

More details

Migration from Groovy to Java classloaders to resolve Java 8 compatibility issue caused by Groovy's synthetic accessor generation. Code is functionally equivalent, properly scoped, and follows test conventions. No regressions detected.

Was this helpful? React 👍 or 👎

_{📊 Validated against 5 scenarios · Open Bits AI session}

_{🤖 Datadog Autotest · Commit 5dbe077 · What is Autotest? · Any feedback? Reach out in #autotest}

[dd-octo-sts]

🟢 Java Benchmark SLOs — All performance SLOs passed

Suite	Status
Startup	🟢 pass

SLO thresholds are defined here based on automatically generated metrics. A warning is raised when results are within 5% of the threshold.

PR vs. master results

Scenario	Candidate	master	Δ (95% CI of mean)
startup:insecure-bank:iast:Agent	13.98 s	14.02 s	[-1.1%; +0.6%] (no difference)
startup:insecure-bank:tracing:Agent	12.91 s	13.03 s	[-1.7%; -0.3%] (maybe better)
startup:petclinic:appsec:Agent	16.89 s	16.68 s	[+0.1%; +2.3%] (maybe worse)
startup:petclinic:iast:Agent	16.97 s	16.88 s	[-0.3%; +1.3%] (no difference)
startup:petclinic:profiling:Agent	16.82 s	16.66 s	[-0.2%; +2.1%] (no difference)
startup:petclinic:sca:Agent	16.89 s	16.66 s	[+0.2%; +2.5%] (maybe worse)
startup:petclinic:tracing:Agent	15.64 s	16.20 s	[-7.5%; +0.7%] (no difference)

Commit: 5dbe0776 · CI Pipeline · Benchmarking Platform UI

---

Load and DaCapo benchmarks can be triggered manually in the GitLab pipeline. Results will appear in the Benchmarking Platform UI after completion.

[sarahchen6]

Cool! Should probably wait for Brice's eye though