[PerfectSlayer]

What Does This Do

Fixes LongStringUtils.parseUnsignedLong so that it rejects 20-digit ids whose first 19 digits overflow a signed long. For example, 99999999999999999999 was accepted as 7766279631452241919 instead of throwing a NumberFormatException.

Motivation

Reported by the Codex and Bits reviews on #12927.

Additional Notes

Contributor Checklist

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• 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

🤖 Generated with Claude Code

[chatgpt-codex-connector]

Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-10-19T12:46:11.350505Z	d80c261	Draft marked ready
🔒 Security Review	✅ Completed 2026-10-19T12:48:26.255748Z	d80c261	Draft marked ready

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[datadog-datadog-prod-us1]

More details

The unsigned comparison correctly rejects overflowing 20-digit decimal IDs while preserving valid unsigned 64-bit values. The completed static review found no reportable defects.

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_{🤖 Bits Code Review · Commit d80c261}

[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	13.92 s	13.95 s	[-0.7%; +0.3%] (no difference)
startup:insecure-bank:tracing:Agent	12.82 s	12.93 s	[-1.7%; +0.0%] (no difference)
startup:petclinic:appsec:Agent	17.02 s	16.90 s	[-0.1%; +1.6%] (no difference)
startup:petclinic:iast:Agent	16.83 s	16.99 s	[-1.7%; -0.2%] (maybe better)
startup:petclinic:profiling:Agent	16.55 s	16.60 s	[-1.3%; +0.6%] (no difference)
startup:petclinic:sca:Agent	17.03 s	16.80 s	[+0.3%; +2.4%] (maybe worse)
startup:petclinic:tracing:Agent	16.01 s	16.07 s	[-1.1%; +0.5%] (no difference)

Commit: c512347e · 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.

[datadog-datadog-prod-us1]

More details

The unsigned comparison correctly rejects out-of-range 20-digit decimal IDs. Boundary checks and randomized comparisons against BigInteger found no parsing discrepancies.

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_{🤖 Bits Code Review · Commit d80c261}

[datadog-datadog-prod-us1]

🎯 Code Coverage (details)
• Patch Coverage: 100.00%
• Overall Coverage: 59.46% (-0.39%)

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