avro-fastserde: Not compatible with Java 11.

The avro-fastserde-0.2.1.jar includes package org.apache.avro.generic which is also defined in the avro jar (in this case avro-1.9.2.jar). Java 11 modules does not allow the same package to be used in different jars and results in the error

The package org.apache.avro.generic is accessible from more than one module: avro.fastserde, org.apache.avro

The older rtbhouse version of avro-fastserde did not include this package and did not have this issue.

Start by inspecting avro-fastserde-0.2.1.jar alongside avro-1.9.2.jar and reproduce the Java 11 module error involving org.apache.avro.generic. Compare the package contents with the older rtbhouse avro-fastserde version. Done means the duplicate package is removed and avro-fastserde works with Java 11.

Written by the indexing model from the issue text.