stevenzwu commented on code in PR #19645:
URL: https://github.com/apache/flink/pull/19645#discussion_r865462563


##########
flink-formats/flink-avro/src/main/java/org/apache/flink/formats/avro/typeutils/GenericRecordAvroTypeInfo.java:
##########
@@ -104,10 +105,15 @@ public boolean canEqual(Object obj) {
     }
 
     private void writeObject(ObjectOutputStream oos) throws IOException {
-        oos.writeUTF(schema.toString());
+        byte[] schemaStrInBytes = 
schema.toString(false).getBytes(StandardCharsets.UTF_8);

Review Comment:
   My main question is the compatibility. could TypeInfo object be stored in 
checkpoint state? if yes, this change will break the state restoring.



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