[AVRO-2956] SpecificRecord decoding fails if Java keyword is used as record name

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 1.10.0
• Component/s: java
• Labels: pull-request-available
• Assignee: Unassigned
• Reporter: Richard Fussenegger
• Created: 08/Nov/20 10:55
• Updated: 28/Dec/23 13:12

Description

Someone created an Avro definition where the name of a record is case:

protocol Proto {
    record case {
        string value;
    }

    record Wrapper {
        case inner;
    }
}

Code generation works and the generated Java code uses case$ for the class name of the record. There is no problem in writing the Java code itself, however, decoding with a SpecificRecord.getDecoder() fails with a ClassCastException:

class org.apache.avro.generic.GenericData$Record cannot be cast to class case$ (org.apache.avro.generic.GenericData$Record and case$ are in unnamed module of loader 'app')
java.lang.ClassCastException: class org.apache.avro.generic.GenericData$Record cannot be cast to class case$ (org.apache.avro.generic.GenericData$Record and case$ are in unnamed module of loader 'app')

Issue Links

• is related to: AVRO-2757 ReflectData still generates namespaces with dollar signs
• links to: GitHub Pull Request #2544