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java.lang.IllegalArgumentException: Unrecognized Type: [null]	at com.fasterxml.jackson.databind.type.TypeFactory._constructType(TypeFactory.java:517)	at com.fasterxml.jackson.databind.type.TypeFactory.constructType(TypeFactory.java:466)	at org.springframework.kafka.support.converter.StringJsonMessageConverter.extractAndConvertValue(StringJsonMessageConverter.java:75)	at org.springframework.kafka.support.converter.MessagingMessageConverter.toMessage(MessagingMessageConverter.java:82)	at org.springframework.kafka.listener.adapter.MessagingMessageListenerAdapter.toMessagingMessage(MessagingMessageListenerAdapter.java:135)	at org.springframework.integration.kafka.inbound.KafkaMessageDrivenChannelAdapter$IntegrationRecordMessageListener.onMessage(KafkaMessageDrivenChannelAdapter.java:287)	at org.springframework.integration.kafka.inbound.KafkaMessageDrivenChannelAdapter$IntegrationRecordMessageListener.onMessage(KafkaMessageDrivenChannelAdapter.java:279)	at org.springframework.kafka.listener.KafkaMessageListenerContainer$ListenerConsumer.invokeRecordListener(KafkaMessageListenerContainer.java:761)