Remove unneded akka/pekko exclusion

[amarziali]

What Does This Do

akka.dispatch.MailBox or the pekko equivalent was excluded Runnables with no effect because of a typo (MailBox instead of Mailbox. This PR removes that since not needed

Motivation

Additional Notes

Contributor Checklist

• Format the title according to the contribution guidelines
• 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: [PROJ-IDENT]

[datadog-prod-us1-6]

More details

PR removes dead-code exclusion filters that never worked due to a typo: code tried to exclude MailBox (capital B) but the actual class is Mailbox (lowercase b). Zero behavioral impact since the exclusion never matched anything. All unused imports cleanly removed. This is safe refactoring that simplifies the codebase.

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[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	14.00 s	13.90 s	[-0.0%; +1.6%] (no difference)
startup:insecure-bank:tracing:Agent	12.90 s	12.93 s	[-1.1%; +0.6%] (no difference)
startup:petclinic:appsec:Agent	16.90 s	16.79 s	[-0.4%; +1.7%] (no difference)
startup:petclinic:iast:Agent	16.88 s	17.00 s	[-1.5%; +0.2%] (no difference)
startup:petclinic:profiling:Agent	16.68 s	16.85 s	[-2.2%; +0.1%] (no difference)
startup:petclinic:sca:Agent	16.27 s	16.76 s	[-7.4%; +1.5%] (no difference)
startup:petclinic:tracing:Agent	16.12 s	16.13 s	[-0.8%; +0.7%] (no difference)

Commit: 20a1e1ce · CI Pipeline · Benchmarking Platform UI

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

[mcculls]

Good find - worth double-checking with @bantonsson in case there was a non-functional reason for the original exclusion which would still be worthwhile after the typo fix.

[amarziali]

Good find - worth double-checking with @bantonsson in case there was a non-functional reason for the original exclusion which would still be worthwhile after the typo fix.

Yes makes sense. I initially just fixed the typo and I noticed that the tests were no more passing (i.e. not tracing). So I only did the easy path (keep as today but remove the code). I'll double check with Bjorn so

[amarziali]

/merge

[gh-worker-devflow-routing-ef8351]

View all feedbacks in Devflow UI.

2026-07-15 09:51:19 UTC ℹ️ Start processing command /merge

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2026-07-15 09:51:24 UTC ℹ️ MergeQueue: pull request added to the queue

The expected merge time in master is approximately 2h (p90).

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2026-07-15 11:52:04 UTC ❌ MergeQueue: The build pipeline has timeout

The merge request has been interrupted because the build 7194664154496256273 took longer than expected. The current limit for the base branch 'master' is 120 minutes.

Possible reasons:

• some mandatory checkruns are failing:
  • Check pull request labels
  • Check pull requests
  • Enforce Groovy migration

[amarziali]

/merge

[gh-worker-devflow-routing-ef8351]

View all feedbacks in Devflow UI.

2026-07-15 11:58:47 UTC ℹ️ Start processing command /merge

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2026-07-15 11:58:51 UTC ℹ️ MergeQueue: pull request added to the queue

The expected merge time in master is approximately 2h (p90).

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2026-07-15 13:33:20 UTC ℹ️ MergeQueue: This merge request was merged