Fix tests using precompiled MyResource class

[jpbempel]

What Does This Do

instead of loading a precompiled and preinstrumented class, we are compiling and instrumenting with JAX-RS instrumentation on-the-fly. Add InstrumentationTestHelper.installTracerInstrumentation(), which self-attaches and applies the real JAX-RS InstrumenterModule via AgentInstaller
Modify CapturedSnapshotTest.tracerInstrumentedClass and MetricProbesInstrumentationTest.localVarNotInScope

Motivation

Additional Notes

Contributor Checklist

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• Assign the type: and (comp: or inst:) labels in addition to any other useful labels
• Avoid using close, fix, or any linking keywords when referencing an issue
  Use solves instead, and assign the PR milestone to the issue
• Update the CODEOWNERS file on source file addition, migration, or deletion
• Update public documentation with any new configuration flags or behaviors
• Once approved, use merge queue to merge the PR

Jira ticket: DEBUG-6226

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[dd-octo-sts]

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[pr-commenter]

Debugger benchmarks

Parameters

	Baseline	Candidate
baseline_or_candidate	baseline	candidate
ci_job_date	1790227387	1790227704
end_time	2026-09-24T05:24:38	2026-09-24T05:29:54
git_branch	master	jpbempel/fix-myresource-tests
git_commit_sha	960f771	7aa786f
start_time	2026-09-24T05:23:08	2026-09-24T05:28:25

See matching parameters

	Baseline	Candidate
ci_job_id	2074960390	2074960390
ci_pipeline_id	139701847	139701847
cpu_model	Intel(R) Xeon(R) Platinum 8175M CPU @ 2.50GHz	Intel(R) Xeon(R) Platinum 8175M CPU @ 2.50GHz
git_commit_date	1790226735	1790226735

Summary

Found 0 performance improvements and 6 performance regressions! Performance is the same for 3 metrics, 6 unstable metrics.

scenario	Δ mean agg_http_req_duration_min	Δ mean agg_http_req_duration_p50	Δ mean agg_http_req_duration_p75	Δ mean agg_http_req_duration_p99	Δ mean throughput
scenario:basic	worse [+3.522µs; +21.010µs] or [+1.152%; +6.871%]	unsure [+2.693µs; +20.273µs] or [+0.812%; +6.113%]	unsure [+2.563µs; +19.631µs] or [+0.750%; +5.748%]	unstable [-27.776µs; +235.193µs] or [-2.999%; +25.393%]	unstable [-228.666op/s; +21.948op/s] or [-9.833%; +0.944%]
scenario:loop	worse [+475.272µs; +571.156µs] or [+6.312%; +7.586%]	worse [+477.024µs; +574.943µs] or [+6.286%; +7.576%]	worse [+477.859µs; +576.428µs] or [+6.264%; +7.556%]	worse [+469.253µs; +600.482µs] or [+6.076%; +7.775%]	worse [-10.242op/s; -5.399op/s] or [-7.937%; -4.184%]

See unchanged results

scenario	Δ mean agg_http_req_duration_min	Δ mean agg_http_req_duration_p50	Δ mean agg_http_req_duration_p75	Δ mean agg_http_req_duration_p99	Δ mean throughput
scenario:noprobe	unstable [-31.928µs; +10.062µs] or [-9.433%; +2.973%]	unstable [-49.624µs; +15.334µs] or [-13.183%; +4.074%]	unstable [-61.307µs; +19.371µs] or [-15.575%; +4.921%]	unstable [-4.305µs; +224.143µs] or [-0.425%; +22.152%]	same

Request duration reports for reports

gantt
    title reports - request duration [CI 0.99] : candidate=None, baseline=None
    dateFormat X
    axisFormat %s
section baseline
noprobe (376.426 µs) : 342, 411
.   : milestone, 376,
basic (331.644 µs) : 321, 342
.   : milestone, 332,
loop (7.589 ms) : 7581, 7597
.   : milestone, 7589,
section candidate
noprobe (359.281 µs) : 332, 386
.   : milestone, 359,
basic (343.127 µs) : 337, 349
.   : milestone, 343,
loop (8.115 ms) : 8051, 8179
.   : milestone, 8115,

Loading

• baseline results

Scenario	Request median duration [CI 0.99]
noprobe	376.426 µs [342.019 µs, 410.833 µs]
basic	331.644 µs [321.115 µs, 342.174 µs]
loop	7.589 ms [7.581 ms, 7.597 ms]

• candidate results

Scenario	Request median duration [CI 0.99]
noprobe	359.281 µs [332.483 µs, 386.08 µs]
basic	343.127 µs [337.177 µs, 349.078 µs]
loop	8.115 ms [8.051 ms, 8.179 ms]

[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	14.76 s	14.70 s	[-0.5%; +1.4%] (no difference)
startup:insecure-bank:tracing:Agent	13.64 s	13.71 s	[-1.3%; +0.3%] (no difference)
startup:petclinic:appsec:Agent	17.03 s	16.90 s	[+0.0%; +1.5%] (maybe worse)
startup:petclinic:iast:Agent	16.93 s	16.95 s	[-0.9%; +0.7%] (no difference)
startup:petclinic:profiling:Agent	16.50 s	16.88 s	[-3.5%; -1.0%] (maybe better)
startup:petclinic:sca:Agent	16.92 s	16.04 s	[+1.1%; +9.9%] (significantly worse)
startup:petclinic:tracing:Agent	16.27 s	16.27 s	[-0.7%; +0.7%] (no difference)

Commit: 7aa786fb · 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.

[dougqh]

🤖 Generated with Claude Code

[dougqh]

Overall, looks reasonable to me.
I see there are some bot comments, and Claude found a small issue when I asked it to review. I'll leave those to your discretion to address.

[datadog-official]

More details

The helper removes the JAX-RS transformer after each affected test. Later tests do not receive this transformer.

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