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From: vlsi (@vlsi) <[email protected]>
To: pgjdbc/pgjdbc <[email protected]>
Subject: [pgjdbc/pgjdbc] PR #3962: fix: catch SecurityException from setContextClassLoader on ForkJoinPool workers
Date: Sat, 14 Mar 2026 06:45:06 +0000
Message-ID: <[email protected]> (raw)

`InnocuousForkJoinWorkerThread` (used by `ForkJoinPool.commonPool()` under certain security configurations) throws `SecurityException` when `setContextClassLoader` is called. This crashed the cleanup thread, disabling phantom-reference-based leak detection for the rest of the JVM lifetime.
    
Wrap the call in try-catch since it is best-effort: `ForkJoinPool` does not inherit `contextClassLoader` from the submitting thread, but custom thread factories might, so we still attempt to nullify it.
    
Fixes https://github.com/pgjdbc/pgjdbc/issues/3953

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