[danikhan-oai]

A strongly consistent query can be buffered while a workflow task completes Continue-As-New. The test server can then try to schedule another workflow task on the closed run. The completion fails with NOT_FOUND: workflow execution already completed, and the query waits until its deadline.

Use isTerminalState() for the workflow-task rescheduling guard so Continue-As-New commits the old run's history before buffered queries dispatch. Register each buffered query result future before sendQueryTask so an immediate response can find it.

The regression test uses a latch to confirm the query is buffered before Continue-As-New completes. It responds synchronously during dispatch and verifies that the query remains bound to the original run, receives its committed close event, and does not prevent the new run from starting.

Testing

• Verified the regression fails on parent commit 3fb41a5a28b94fe7a150105901b626ba259fa050 with NOT_FOUND: workflow execution already completed.
• Verified the terminal-state change alone exposes the second race with NOT_FOUND: Unknown query id.
• Verified the complete fix passes the regression, including 10 repeated runs that force the race ordering.
• Ran the complete temporal-test-server module suite: 98 passed, 1 existing ignored test tracked by taskTimeoutWillRescheduleTheTaskOnTheGlobalList on the test server is flaky #2333, 0 failed.
• Relevant Spotless checks and git diff --check passed.
• Built the JVM :temporal-test-server:installDist distribution.

The source test results above apply to commit 1257ea83d43916fee9ce071fd6b9317d5bf1c077. The follow-up commit only adds the required changelog entry, which passed the local placement check.

The complete repository test suite and native image build were not run.

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