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fix: Use a separate cached thread pool for handling ack and modack response calllbacks for EOD-enabled subscriptions - #2505
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michaelpri10 merged 1 commit intoAug 5, 2025
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…sponse callback for EOD-enabled subscriptions
abbrowne126
approved these changes
Aug 4, 2025
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Per the MoreExecutors.directExecutor() docstring, "prefer not to perform any locking inside a task that will be run under {@code directExecutor}: Not only might the wait for a lock be long, but if the running thread was holding a lock, the listener may deadlock or break lock isolation."
A lock is held during notifyAckSuccess when EOD is enabled, which gets executed as a callback using a MoreExecutors.directExecutor(). This PR uses an a cached thread pool for executing this callback when EOD is enabled.
Fixes #2480