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From "Timo Walther (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (FLINK-7450) Bounded generic POJO field is identified as Object by TypeExtractor
Date Tue, 15 Aug 2017 11:15:00 GMT

     [ https://issues.apache.org/jira/browse/FLINK-7450?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Timo Walther reassigned FLINK-7450:
-----------------------------------

    Assignee: Timo Walther

> Bounded generic POJO field is identified as Object by TypeExtractor
> -------------------------------------------------------------------
>
>                 Key: FLINK-7450
>                 URL: https://issues.apache.org/jira/browse/FLINK-7450
>             Project: Flink
>          Issue Type: Bug
>          Components: Type Serialization System
>    Affects Versions: 1.3.2
>            Reporter: Timo Walther
>            Assignee: Timo Walther
>
> The TypeExtractor does not correctly handle POJO fields with bounded generics.
> For example:
> {code}
> public class Foo<SomeKey extends BarKey> implements Serializable {
>     public SomeKey someKey;
>     public Foo() {}
>     public Foo(SomeKey someKey) {
>         this.someKey = someKey;
>     }
> }
> {code}
> Is identified as:
> {code}
> PojoType<org.apache.flink.streaming.examples.wordcount.WordCount$Foo, fields = [someKey:
GenericType<java.lang.Object>]>
> {code}
> So even though the reflection field has a type, the type information only describes a
Object class.



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