zakpayne8283 opened a new pull request, #3709: URL: https://github.com/apache/avro/pull/3709
## What is the purpose of the change This PR addresses [AVRO-4211](https://issues.apache.org/jira/browse/AVRO-4211). In Java, the IDLUtils does not generate Schemas correctly for fields which are unions and have a default value if the default value is not the first element in the union. For example: ``` @Union({ Void.class, Integer.class }) @AvroDefault("1") int someIntField = 1 ``` Will produce a Schema like ``` someIntField = null ``` because `Void.class` is the first element in the union. This change aligns the Java library with the [current documentation](https://avro.apache.org/docs/1.12.0/specification/#unions): >Note that when a default value is specified for a record field whose type is a union, the type of the default value must match with one element of the union. ## Verifying this change This change modified tests and can be verified as follows: Modified `TestJacksonUtils.java`, adding a union with default value matching the second element of the union to the `testToObject()` test. ## Documentation - Does this pull request introduce a new feature? - No -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
