lang/java/tools/src/test/compiler/input/addextraoptionalgetterstest.avsc

{"type":"record", "name":"AddExtraOptionalGettersTest", "namespace": "avro.examples.baseball","doc":"Test that extra optional getters are added",
  "fields": [
   {"name": "name", "type": "string"},
   {"name": "favorite_number",  "type": ["int", "null"]}
  ]
}