Note

Low Risk
Behavioral changes are limited to logging and minor exception-handling semantics in polling code; low risk aside from potentially changing how shutdown-related interrupts propagate.

Overview
Improves polling robustness/observability by making PollingBase.logger protected for subclasses and clarifying that failures while translating a changeset are treated as invalid data.

Updates PollingSynchronizerImpl to handle InterruptedException and ExecutionException separately, emitting debug logs and restoring the thread interrupt flag when interrupted.

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