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Alexander Kasper updated AVRO-1865: ----------------------------------- Attachment: add-no-arg-ctor-genericdata-array.diff > GenericData.Array class missing no arg constructor for Kryo serialization > ------------------------------------------------------------------------- > > Key: AVRO-1865 > URL: https://issues.apache.org/jira/browse/AVRO-1865 > Project: Avro > Issue Type: Bug > Components: java > Affects Versions: 1.8.1 > Reporter: Alexander Kasper > Labels: newbie, patch > Attachments: add-no-arg-ctor-genericdata-array.diff > > > When trying to serialize Java classes generated by Avro that contain a field > as follows: > `array<MyClass> myclasses = []` > serialization fails with the following error message > `com.esotericsoftware.kryo.KryoException: Class cannot be created (missing > no-arg constructor)` > This is a common enough issue with Kryo that they have a dedicated section on > their website on it: > http://docs.datatorrent.com/troubleshooting/#application-throwing-following-kryo-exception > The attached patch adds a no args constructor for the inner class Array of > GenericData with zero entries and a dummy schema. My personal tests for > serialization with Kryo were successful when using it. Since I do not have > complete insight into Avro I'd like to know if this could be a breaking > change and how to test it if so. -- This message was sent by Atlassian JIRA (v6.3.4#6332)