Du Liu created AVRO-3224:
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Summary: Wrong deserialisation when using ReflectData.AllowNull
with custom LogicalType conversions
Key: AVRO-3224
URL: https://issues.apache.org/jira/browse/AVRO-3224
Project: Apache Avro
Issue Type: Bug
Components: java
Affects Versions: 1.10.2
Reporter: Du Liu
Attachments: ReflectData.AllowNull.get doesnt work.png,
ReflectData.get works.png, class_and_conversion.png, tests.txt
If a class contains both a java.time.LocalDate field and a java.sql.Date field,
serialising an instance of the class using ReflectData.*AllowNull* with two
conversions that both convert to avro date logical type (e.g. one converts
java.time.LocalDate to avro date, the other converts java.sql.Date to avro
date) is done correctly, but when deserialising the data back, the LocalDate
field of the deserialised instance incorrectly contains a java.sql.Date (or the
Date field incorrectly contains a LocalDate depending on which conversions is
added last).
This only happens when using ReflectData.*AllowNull*.get(). ReflectData.get()
can correctly deserialised data back.
A working example (using ReflectData.get()):
!ReflectData.get works.png!
A not working example (using ReflectData.AllowNull.get()):
!ReflectData.AllowNull.get doesnt work.png!
The class and conversion:
!class_and_conversion.png!
These tests are included in the attached patch file: [^tests.txt]
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