[jira] [Created] (FLINK-7450) Bounded generic POJO field is identified as Object by TypeExtractor

["Timo Walther (JIRA)" <ji...@apache.org>]

Timo Walther created FLINK-7450:
-----------------------------------

             Summary: 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
            Reporter: 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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