Github user tragicjun commented on the issue:
https://github.com/apache/flink/pull/6082
Hi @fhueske ,
Avro array type actually is mapped to Java List type, specifically the
class **org.apache.avro.generic.GenericData.Array** extends
**java.util.AbstractList**. I tried to convert the List to an Array in
**AvroRowDeserializationSchema**, but to make it generic an **Object []** must
be returned, which would then lead to a cast problem when passing the **Object
[]** to TypeSerializer.copy().
I tried using **ListTypeInfo** to declare corresponding Avro array type, it
was just working fine, as we already have **ListSerializer** to support it.
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