Sachin Goyal created AVRO-1569:
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Summary: 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}
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