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audit-lifecycle

Testing & Quality
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Analyze shutdown, close, and GC-of-cache lifecycle correctness

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How to use this skill

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  1. Open your project in Codex.
  2. Copy the prompt below and paste it into your agent.
  3. Review the proposed files and risks before you approve installation.
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I want to install this Agent Skill for this project in Codex.

Source SKILL.md: https://github.com/ben-manes/caffeine/blob/HEAD/.claude/skills/audit-lifecycle/SKILL.md

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First, summarize what it does, its dependencies, license status if identifiable, and any risks. Show the exact files you propose to add under .agents/skills/audit-lifecycle/. Do not write files or run scripts until I approve.

After I approve, install the complete skill folder, including required referenced files, into that project location. Verify it is discoverable, then tell me its actual invocation name and how to use it. Do not claim it is installed until you have verified it.

Copying this prompt does not install or run the skill. Review third-party files before use. Codex skill guide

Analyze the cache for defects during shutdown, close, and garbage collection of the cache instance itself.

Assume at least one shutdown or lifecycle race exists. If your analysis yields zero findings, re-examine scheduler/executor lifecycle and in-flight operations during close — explain specifically why no race is possible.

  1. Operations racing with close/cleanup: get/put/compute during cleanUp() or GC? close() state transition? Operations after close()?

  2. Scheduler lifecycle: Does the scheduled future prevent cache GC? Can scheduler fire after cache is collected? Is the task cancelled on close?

  3. Executor lifecycle: Reference cycle between cache and executor? RejectedExecutionException handling when executor is shut down?

  4. Removal listener drain on shutdown: Are pending notifications delivered or dropped? Notifications lost if executor shuts down first?

  5. In-flight operations during shutdown:

    • CacheLoader.load() in progress when cache closes
    • Refresh future's whenComplete callback after close
    • CompletableFuture value pending when cache closes

  6. Multiple close calls: Is close() idempotent? Concurrent close() corruption?

  7. Finalizer / Cleaner interactions: Reference queues outliving the cache? Reference queue processing accessing dead cache?

  8. jcache manager/cache close: Is teardown symmetric with setup — the OSGi context-classloader swap applied on destroy/close as on create/get; in-flight futures awaited; user Closeables (writer, loader, listeners, expiry) closed exactly once under the right classloader?

For each defect: state the lifecycle transition, provide a concrete scenario, state the observable incorrect behavior.