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https://issues.apache.org/jira/browse/AVRO-1571?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15823511#comment-15823511
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Sachin Goyal commented on AVRO-1571:
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Attached a simple test to help see this issue clearly.
> Support parameterized types in Avro
> -----------------------------------
>
> Key: AVRO-1571
> URL: https://issues.apache.org/jira/browse/AVRO-1571
> Project: Avro
> Issue Type: Bug
> Affects Versions: 1.7.6, 1.7.7, 1.8.1
> Reporter: Sachin Goyal
> Attachments: ParameterizedTypesTest.java
>
>
> The below code cannot be serialized by Avro.
> {code}
> class ParameterTypes {
> Master1 m1;
> Master2 m2;
> Master3<Integer> m3;
> }
> class Foo <P, Q> {
> P p;
> Q q;
> }
> class Master1 {
> Foo <Integer, Long> foo;
> }
> class Master2 {
> Foo <String, String> foo;
> }
> class Master3 <P> {
> Foo <P, P> foo;
> }
> {code}
> This is because when generating the schema, only the current class is used to
> generate the schema. The parent class' context is missing in
> ReflectData#createSchema() functions where the actual type-information is
> present.
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