KIP-1033 — Add Kafka Streams exception handler for exceptions occurring during processing

Accepted Kafka 3.9 Streams

KIP-1033 adds a `ProcessingExceptionHandler` interface to Kafka Streams (configured via `processing.exception.handler`) that intercepts uncaught exceptions thrown during `process()` calls in DSL or Processor API topologies, with built-in `LogAndFail` (default) and `LogAndContinue` implementations. Previously, unhandled processing exceptions terminated the `StreamThread`, requiring developers to wrap all processing logic in try-catch blocks—an error-prone approach that does not scale across large topologies.

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