[Bug]: Samza runner fails to run a pipeline with Custom Window followed by Reshuffle

[shunping]

What happened?

After adding test_reshuffle_after_custom_window, the test failed in the following two Samza runner workflows.

• https://github.com/apache/beam/actions/runs/14814929276/job/41594213178?pr=34830
• https://github.com/apache/beam/actions/runs/14814929276/job/41594213313?pr=34830

Issue Priority

Priority: 2 (default / most bugs should be filed as P2)

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[Abacn]

Samza runner is in unmaintained state - Unless #32208 is resolved, Samza runner might be effectively deprecated when we officially deprecate Java 8

[github-actions]

This issue has been marked as stale due to 150 days of inactivity. It will be closed in 30 days if no further activity occurs. If you think that’s incorrect or this issue still needs to be addressed, please simply write any comment. If closed, you can reopen the issue at any time. Thank you for your contributions.

[github-actions]

This issue has been closed due to lack of activity. If you think that is incorrect, you can reopen the issue at any time.