Jark Wu created FLINK-20470: ------------------------------- Summary: MissingNode can't be casted to ObjectNode when deserializing JSON Key: FLINK-20470 URL: https://issues.apache.org/jira/browse/FLINK-20470 Project: Flink Issue Type: Bug Components: Formats (JSON, Avro, Parquet, ORC, SequenceFile), Table SQL / Ecosystem Affects Versions: 1.11.2, 1.12.0 Reporter: Jark Wu
{code} Caused by: java.io.IOException: Failed to deserialize JSON ''. at org.apache.flink.formats.json.JsonRowDataDeserializationSchema.deserialize(JsonRowDataDeserializationSchema.java:126) ~[flink-json-1.11.2.jar:1.11.2] at org.apache.flink.formats.json.JsonRowDataDeserializationSchema.deserialize(JsonRowDataDeserializationSchema.java:76) ~[flink-json-1.11.2.jar:1.11.2] at org.apache.flink.api.common.serialization.DeserializationSchema.deserialize(DeserializationSchema.java:81) ~[flink-dist_2.11-1.11.2.jar:1.11.2] at org.apache.flink.streaming.connectors.kafka.internals.KafkaDeserializationSchemaWrapper.deserialize(KafkaDeserializationSchemaWrapper.java:56) ~[flink-sql-connector-kafka_2.11-1.11.2.jar:1.11.2] at org.apache.flink.streaming.connectors.kafka.internal.KafkaFetcher.partitionConsumerRecordsHandler(KafkaFetcher.java:181) ~[flink-sql-connector-kafka_2.11-1.11.2.jar:1.11.2] at org.apache.flink.streaming.connectors.kafka.internal.KafkaFetcher.runFetchLoop(KafkaFetcher.java:141) ~[flink-sql-connector-kafka_2.11-1.11.2.jar:1.11.2] at org.apache.flink.streaming.connectors.kafka.FlinkKafkaConsumerBase.run(FlinkKafkaConsumerBase.java:755) ~[flink-sql-connector-kafka_2.11-1.11.2.jar:1.11.2] at org.apache.flink.streaming.api.operators.StreamSource.run(StreamSource.java:100) ~[flink-dist_2.11-1.11.2.jar:1.11.2] at org.apache.flink.streaming.api.operators.StreamSource.run(StreamSource.java:63) ~[flink-dist_2.11-1.11.2.jar:1.11.2] at org.apache.flink.streaming.runtime.tasks.SourceStreamTask$LegacySourceFunctionThread.run(SourceStreamTask.java:213) ~[flink-dist_2.11-1.11.2.jar:1.11.2] Caused by: java.lang.ClassCastException: org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.node.MissingNode cannot be cast to org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.node.ObjectNode {code} Currently, we only check {{jsonNode == null || jsonNode.isNull()}} for nullable node, I think we should also take MissingNode into account. -- This message was sent by Atlassian Jira (v8.3.4#803005)