[dlunch]

java.lang.ref

• Add java.lang.ref.Reference (get(), clear()) and java.lang.ref.WeakReference (WeakReference(Object)).
• The garbage collector does not trace Reference.referent, and clears it on reachable references once the referent is no longer strongly reachable.

Timer

• Add Timer.scheduleAtFixedRate(TimerTask, Date, long), with the same validation as schedule(TimerTask, Date, long).

Index exceptions

• Add ArrayIndexOutOfBoundsException(int) and StringIndexOutOfBoundsException(int), producing Array index out of range: <index> and String index out of range: <index>.

Verification

• New WeakReferenceSemantics fixture run by test_class, with expected output generated on a real JVM; it fails without the collector change.
• Extended the existing Timer and exception tests for the new overloads.
• cargo fmt --check, cargo clippy --workspace --all-targets, and cargo test --workspace pass.

[chatgpt-codex-connector]

Codex Review Summary: ✅ Completed

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

Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-11-14T04:17:08.143226Z	eb84a47	PR opened

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[codecov]

Codecov Report

❌ Patch coverage is 96.99248% with 4 lines in your changes missing coverage. Please review.
✅ Project coverage is 87.87%. Comparing base (279ccb6) to head (eb84a47).
⚠️ Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
rustjava-runtime/src/classes/java/util/timer.rs	86.66%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #241      +/-   ##
==========================================
+ Coverage   87.84%   87.87%   +0.02%     
==========================================
  Files         311      313       +2     
  Lines       47183    47315     +132     
==========================================
+ Hits        41448    41576     +128     
- Misses       5735     5739       +4     

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