Hello, Having an issue with nested protobuf deserialization, event tried with register the class with Kryo like beloe but seems like no help , one of the options left for me is to write a custom serializer or convert the byte array to a Dictionary object .
*val clazz = Class.forName("java.util.Collections$UnmodifiableCollection");env.getConfig.registerTypeWithKryoSerializer(clazz,classOf[UnmodifiableCollectionsSerializer])* ----------- .ClickSchema$Click) at com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:125) at com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:528) at com.esotericsoftware.kryo.Kryo.readObjectOrNull(Kryo.java:730) at com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:113) at com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:528) at com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:761) at org.apache.flink.api.java.typeutils.runtime.kryo.KryoSerializer.deserialize(KryoSerializer.java:232) at org.apache.flink.streaming.runtime.streamrecord.StreamRecordSerializer.deserialize(StreamRecordSerializer.java:112) at org.apache.flink.streaming.runtime.streamrecord.StreamRecordSerializer.deserialize(StreamRecordSerializer.java:42) at org.apache.flink.runtime.plugable.NonReusingDeserializationDelegate.read(NonReusingDeserializationDelegate.java:55) at org.apache.flink.runtime.io.network.api.serialization.SpillingAdaptiveSpanningRecordDeserializer.getNextRecord(SpillingAdaptiveSpanningRecordDeserializer.java:116) at org.apache.flink.streaming.runtime.io.StreamInputProcessor.processInput(StreamInputProcessor.java:156) at org.apache.flink.streaming.runtime.tasks.OneInputStreamTask.run(OneInputStreamTask.java:67) at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:267) at org.apache.flink.runtime.taskmanager.Task.run(Task.java:642) at java.lang.Thread.run(Thread.java:745) Caused by: java.lang.UnsupportedOperationException at java.util.Collections$UnmodifiableCollection.add(Collections.java:1055) at com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSerializer.java:109) at com.esotericsoftware.kryo.serializers.CollectionSerializer.read(CollectionSer ------------------------