Builder API fails to substitute default values for enum types
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Key: AVRO-1020
URL: https://issues.apache.org/jira/browse/AVRO-1020
Project: Avro
Issue Type: Bug
Components: java
Affects Versions: 1.6.1
Reporter: James Baldassari
If a schema has an enum type with a default value, and the Builder API is used
to automatically substitute the default value on build(), a ClassCastException
is thrown. The reason is that the default value resolves to a
GenericData.EnumSymbol. The specific builder then attempts to cast this value
to the corresponding Java enum type, which fails. Here is an example stack
trace:
{noformat}
org.apache.avro.AvroRuntimeException: java.lang.ClassCastException:
org.apache.avro.generic.GenericData$EnumSymbol cannot be cast to
org.apache.avro.ipc.specific.PrivacyType
at org.apache.avro.ipc.specific.Person$Builder.build(Person.java:410)
at
org.apache.avro.specific.TestSpecificRecordBuilder.testSpecificBuilder(TestSpecificRecordBuilder.java:51)
Caused by: java.lang.ClassCastException:
org.apache.avro.generic.GenericData$EnumSymbol cannot be cast to
org.apache.avro.ipc.specific.PrivacyType
at org.apache.avro.ipc.specific.Person$Builder.build(Person.java:407)
... 24 more
{noformat}
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