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Posted to notifications@shenyu.apache.org by "Aias00 (via GitHub)" <gi...@apache.org> on 2026/08/03 01:11:47 UTC

[I] [BUG] MqttBootstrapServer shutdown NPE on failed start; start swallows InterruptedException [shenyu]

Aias00 opened a new issue, #6747:
URL: https://github.com/apache/shenyu/issues/6747

   - severity: Medium
   - files: `shenyu-protocol/shenyu-protocol-mqtt/src/main/java/org/apache/shenyu/protocol/mqtt/MqttBootstrapServer.java:57-79`
   - description: `start()` catches `InterruptedException` from `bootstrap.bind(...).sync()` and does nothing (no log, no interrupt-flag restore, no cleanup). If bind fails, `future` stays null. `shutdown()` calls `future.channel().close()` → NPE on `future`.
   - impact: Failed/incomplete start leads to NPE on shutdown and leaked event-loop groups; interrupt status lost.
   - suggested_fix: Null-check `future`/groups in shutdown; on bind failure dispose groups and re-interrupt.
   - confidence: Medium
   - related_existing: none
   
   ---
   _Identified during the 2026-08-02 deep re-scan; full list in [`docs/scan2-2026-08-02/06-medium-tiers.md`](docs/scan2-2026-08-02/06-medium-tiers.md)._


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Re: [I] [BUG] MqttBootstrapServer shutdown NPE on failed start; start swallows InterruptedException [shenyu]

Posted by "wy471x (via GitHub)" <gi...@apache.org>.
wy471x commented on issue #6747:
URL: https://github.com/apache/shenyu/issues/6747#issuecomment-5311760539

   /assign


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Re: [I] [BUG] MqttBootstrapServer shutdown NPE on failed start; start swallows InterruptedException [shenyu]

Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] commented on issue #6747:
URL: https://github.com/apache/shenyu/issues/6747#issuecomment-5161312317

   👋 Hello @yuluo-yx
   
   A new issue has been opened by @Aias00:
   - **Title**: [BUG] MqttBootstrapServer shutdown NPE on failed start; start swallows InterruptedException
   - **Link**: https://github.com/apache/shenyu/issues/6747
   
   Please review when you have time. Thank you! 🙏


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