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As such there are no functional changes at all. The below changes arise when we deprecate 2 configs.

         

Code Block
languagejava
titleMain changes
		@Deprecated
        public static final String DEFAULT_DESERIALIZATION_EXCEPTION_HANDLER_CLASS_CONFIG = "default.deserialization.exception.handler";
        
        public static final String DESERIALIZATION_EXCEPTION_HANDLER_CLASS_DOC = "Exception handling class that implements the <code>org.apache.kafka.streams.errors.DeserializationExceptionHandler</code> interface.";

        /** {@code default.production.exception.handler} */
        @SuppressWarnings("WeakerAccess")
        @Deprecated
        public static final String DEFAULT_PRODUCTION_EXCEPTION_HANDLER_CLASS_CONFIG = "default.production.exception.handler";
        
        private static final String PRODUCTION_EXCEPTION_HANDLER_CLASS_DOC = "Exception handling class that implements the <code>org.apache.kafka.streams.errors.ProductionExceptionHandler</code> interface.";

        public static final String DESERIALIZATION_EXCEPTION_HANDLER_CLASS_CONFIG = "deserialization.exception.handler";

        /** {@code default.production.exception.handler} */
        @SuppressWarnings("WeakerAccess")
        public static final String PRODUCTION_EXCEPTION_HANDLER_CLASS_CONFIG = "production.exception.handler";


  1. Deprecate the below two configs in org.apache.kafka.streams.StreamsConfig
    1. default.deserialization.exception.handler
    2. default.production.exception.handler
  2. Configs to be added to org.apache.kafka.streams.StreamsConfig
    1. deserialization.exception.handler
    2. production.exception.handler
  3. Rename the below template configs
    1. DEFAULT_DESERIALIZATION_EXCEPTION_HANDLER_CLASS_DOC to DESERIALIZATION_EXCEPTION_HANDLER_CLASS_DOC
    2. DEFAULT_PRODUCTION_EXCEPTION_HANDLER_CLASS_DOC to PRODUCTION_EXCEPTION_HANDLER_CLASS_DOC
  4. Update all the relevant dependency classes, so that both old and new configs are supported
    1. Update ConfigDef in TopologyConfig and code blocks like isTopologyOverride(DEFAULT_DESERIALIZATION_EXCEPTION_HANDLER_CLASS_CONFIG, topologyOverrides)) with new configs, so that code behaves the same for both the old and new configs
    2. RecordDeserializer
  5. Mark the tests depending on old configs as deprecated and introduce new tests in the below
    1. InternalTopologyBuilderTest
    2. StreamTaskTest
    3. StreamThreadTest

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