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ASF GitHub Bot commented on AVRO-1569: -------------------------------------- Github user asfgit closed the pull request at: https://github.com/apache/avro/pull/22 > ReflectData.AllowNull fails with polymorphism > --------------------------------------------- > > Key: AVRO-1569 > URL: https://issues.apache.org/jira/browse/AVRO-1569 > Project: Avro > Issue Type: Bug > Affects Versions: 1.7.6 > Reporter: Sachin Goyal > > UnresolvedUnionException is thrown if the following structure is serialized > with ReflectData.AllowNull > (Plain ReflectData works fine) > {code} > class Base > { > Integer a = 5; > } > class Derived extends Base > { > String b = "Foo"; > } > class PolymorphicDO > { > Base obj = new Derived(); > } > // Serialization code: > ReflectData rdata = ReflectData.AllowNull.get(); > Schema schema = rdata.getSchema(PolymorphicDO.class); > ReflectDatumWriter<T> datumWriter = new ReflectDatumWriter > (PolymorphicDO.class, rdata); > DataFileWriter<T> fileWriter = new DataFileWriter<T> (datumWriter); > fileWriter.create(schema, new ByteArrayOutputStream()); > fileWriter.append(new PolymorphicDO()); > {code} -- This message was sent by Atlassian JIRA (v6.3.4#6332)