Backward compatibility checking issue

[Stanislav Savulchik <s....@gmail.com>]

Hello,

I found out that there is a discrepancy in results when using
org.apache.avro.SchemaCompatibility.checkReaderWriterCompatibility and
org.apache.avro.ValidateCanRead.validate for checking backward
compatibility of schemas that use an alias for some field:

writer.avsc { "name": "Foo", "type": "record", "fields": [ { "name": "bar",
"type": "string" } ] }
reader.avsc { "name": "Foo", "type": "record", "fields": [ { "name": "baz",
"type": "string", "aliases": ["bar"] } ] }

The org.apache.avro.SchemaCompatibility.checkReaderWriterCompatibility
reports that the reader schema is compatible with the writer schema.

But org.apache.avro.ValidateCanRead.validate reports otherwise.

I made the sample project
https://github.com/savulchik/avro-compat-issue showing
the issue.

Could someone verify if this behavior is indeed inconsistent?

Regards,
Stanislav.