org.apache.flink.runtime.client.JobExecutionException: Job execution failed.

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The easiest solution is to provide a default constructor for the class you want to convert from/to json.

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Try indicating constructor to use @JsonCreator annotation.

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org.apache.flink.runtime.client.JobExecutionException: Job execution failed.
at com.fasterxml.jackson.databind.JsonMappingException.from(JsonMappingException.java:261)
at com.fasterxml.jackson.databind.DeserializationContext.instantiationException(DeserializationContext.java:1456)
at com.fasterxml.jackson.databind.DeserializationContext.handleMissingInstantiator(DeserializationContext.java:1012)
at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.deserializeFromObjectUsingNonDefault(BeanDeserializerBase.java:1203)
at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserializeFromObject(BeanDeserializer.java:314)
at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:148)
at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:3789)
at com.test.SwissProtDeserializationSchema.deserialize(SwissProtDeserializationSchema.scala:17)
at com.test.SwissProtDeserializationSchema.deserialize(SwissProtDeserializationSchema.scala:9)
at org.apache.flink.streaming.util.serialization.KeyedDeserializationSchemaWrapper.deserialize(KeyedDeserializationSchemaWrapper.java:39)
at org.apache.flink.streaming.connectors.kafka.internal.Kafka09Fetcher.run(Kafka09Fetcher.java:227)
at java.lang.Thread.run(Thread.java:745)

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