Hi, I have a proto which has a map field in it. When i try to use it in Flink using Kyro serializer, im getting following error when pushing the output to Kafka at java.util.Collections$UnmodifiableCollection.add(Collections.java:1057) at com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:134) at com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:40) at com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:731) at com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:125) at com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:144) at com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:540) at com.esotericsoftware.kryo.Kryo.readObjectOrNull(Kryo.java:782) at com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:132) at com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:540) at com.esotericsoftware.kryo.Kryo.readObjectOrNull(Kryo.java:782) at com.esotericsoftware.kryo.serializers.DefaultArraySerializers$ObjectArraySerializer.read(DefaultArraySerializers.java:382) at com.esotericsoftware.kryo.serializers.DefaultArraySerializers$ObjectArraySerializer.read(DefaultArraySerializers.java:303) at com.esotericsoftware.kryo.Kryo.readObjectOrNull(Kryo.java:782) at com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:132) at com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:540) at com.esotericsoftware.kryo.Kryo.readObjectOrNull(Kryo.java:782) at com.esotericsoftware.kryo.serializers.DefaultArraySerializers$ObjectArraySerializer.read(DefaultArraySerializers.java:382) at com.esotericsoftware.kryo.serializers.DefaultArraySerializers$ObjectArraySerializer.read(DefaultArraySerializers.java:303) at com.esotericsoftware.kryo.Kryo.readObjectOrNull(Kryo.java:782) at com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:132) at com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:540) at com.esotericsoftware.kryo.Kryo.readObjectOrNull(Kryo.java:782) at com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:132) at com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:540) at com.esotericsoftware.kryo.Kryo.readObjectOrNull(Kryo.java:782) at com.esotericsoftware.kryo.serializers.DefaultArraySerializers$ObjectArraySerializer.read(DefaultArraySerializers.java:382) at com.esotericsoftware.kryo.serializers.DefaultArraySerializers$ObjectArraySerializer.read(DefaultArraySerializers.java:303) at com.esotericsoftware.kryo.Kryo.readObjectOrNull(Kryo.java:782) at com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:132) at com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:540) at com.esotericsoftware.kryo.Kryo.readObjectOrNull(Kryo.java:782) at com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:132) at com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:540) at com.esotericsoftware.kryo.Kryo.readObjectOrNull(Kryo.java:782) at com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:132) at com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:540) at com.esotericsoftware.kryo.Kryo.readObjectOrNull(Kryo.java:782) at com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:132) at com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:540) at com.esotericsoftware.kryo.Kryo.readObjectOrNull(Kryo.java:782) at com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:132) at com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:540) at com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:731) at com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:125) at com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:540) at com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:731) at com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:125) at com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:540) at com.esotericsoftware.kryo.Kryo.readObjectOrNull(Kryo.java:782) Can u plz help on what is wrong? 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Are you registering the protobuf serializer with Kryo? (See https://flink.apache.org/news/2020/04/15/flink-serialization-tuning-vol-1.html#protobuf-via-kryo) From: Sudan S <[hidden email]> Hi, I have a proto which has a map field in it. When i try to use it in Flink using Kyro serializer, im getting following error when pushing the output to Kafka Caused by: java.lang.UnsupportedOperationException at com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:144) Can u plz help on what is wrong? "The information contained in this e-mail and any accompanying documents may contain information that is confidential or otherwise protected from
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