[kaahos]

What Does This Do

Bumps java-profiler (ddprof) from 1.51.0 to 1.52.0 and updates the dependency lockfile.

Motivation

Noticeable changes

• Measure native allocator overhead instead of assuming a fixed factor in feat(nativemem): measure allocator overhead instead of assuming a blanket factor java-profiler#759.
• Improve stack frame attribution and AArch64 runtime stub unwinding in walkVM attribution addresses (PROF-15955) + one shared DWARF step (PROF-16059) java-profiler#813, Improve AArch64 runtime stub unwinding with precomputed per-stub unwind info java-profiler#816, and Fix aarch64 stub unwinding in I2C/C2I adapters; fix StubUnwindCpuTest slowness on debug builds java-profiler#842.
• Record the remote symbolication mode in JFR in fix: plug remote symbolication enum to JFR java-profiler#828.
• Add upstream reference-chain tracking and leak-signal detection, with liveness and recycled-tag identity fixes, in Reference-chain tracker and leak-signal engine java-profiler#797, Liveness epoch/urgency fixes, deferred chain invalidation, and debug JNI test seams java-profiler#798, and Reference chains: recycled leak-tag identity and Java integration tests java-profiler#800.
• Fix dictionary and call-trace table reclamation after drain timeouts, preserve string IDs across dictionary rotation, and correct live-trace preservation in Never reclaim dictionary storage after a timed-out drain java-profiler#839, Never free a call-trace table a put() may still hold after a drain timeout java-profiler#840, Close guard-scan and reused-buffer gaps in dictionary reclamation java-profiler#845, Keep one id per key across StringDictionary::rotate() java-profiler#857, and Fix live trace preservation deduplication by trace ID (PROF-16138) java-profiler#860.
• Fix duplicate and biased thread selection in wall-clock sampling, native socket hook timestamps, and continuation metadata lookup and frame alignment in Fix duplicate and biased thread picks in the wall-clock reservoir sampler java-profiler#844, Fix native socket hook timestamp sequencing (PROF-16151) java-profiler#862, and Fix continuation metadata lookup and frame alignment java-profiler#870.
• Add the upstream fjmethodid=lazy option for profiling HotSpot without jmethodIDs in Add fjmethodid=lazy: profile HotSpot without jmethodIDs java-profiler#868.

See the 1.52.0 release notes and full changelog.

Additional Notes

Validation on macOS with JDK 21:

• Regenerated the affected lockfile with :dd-java-agent:ddprof-lib:resolveAndLockAll --write-locks --update-locks com.datadoghq:ddprof.
• :dd-java-agent:agent-profiling:profiling-ddprof:test: 54 passed, 35 Linux-only tests skipped.
• :dd-java-agent:agent-profiling:profiling-controller-ddprof:test: 3 tests failed to load the native profiler and 1 skipped. Confirmed the same failures using the existing 1.51.0 JAR via -Pddprof.jar.
• spotlessApply could not complete because :spotlessInternalRegisterDependencies failed to provision P2 dependencies. Neither changed file is a Spotless formatting target.
• git diff --check passed.

The linked upstream release is currently a draft; the 1.52.0 artifact is available on Maven Central.

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 linking keywords when referencing an issue; use solves instead, and assign the PR milestone to the issue.
• Update CODEOWNERS 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.

[chatgpt-codex-connector]

Codex Review Summary

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Review	Status	Commit	Review trigger
📝 Code Review	🔄 Running since 2026-10-24T09:36:41.577081Z	e124166	Draft marked ready
🔒 Security Review	🔄 Running since 2026-10-24T09:36:41.578919Z	e124166	Draft marked ready

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[datadog-datadog-prod-us1-2]

More details

Static inspection identified no compatibility blocker for ddprof 1.52.0. Native loading and runtime behavior remain untested.

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