[PARQUET-856] parquet-avro logical type support broke ability to use avro reflection with generics.

• Type: Bug
• Status: Patch Available
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: 1.9.0
• Component/s: parquet-avro
• Flags: Patch
• Assignee: Evan McClain
• Reporter: Evan McClain
• Created: 01/Feb/17 21:50
• Updated: 02/Feb/17 00:08

Description

Impacts 1.9.0 and 1.8.2.

Assuming the fieldClass is a concrete class (which it is for all of the logical types) is an incorrect assumption when generics are used.

Statistics<T extends Serializable> {
T field1
T field2
}

SetStatistics extends Statistics<HashSet<String>> {}

Solution is to check if the fieldClass is abstract/interface/raw object.