[jira] [Created] (AVRO-2107) Unable to deserialize JSON with array type to GenericRecord

["Darshan Mehta (JIRA)" <ji...@apache.org>]

Darshan Mehta created AVRO-2107:
-----------------------------------

             Summary: Unable to deserialize JSON with array type to GenericRecord
                 Key: AVRO-2107
                 URL: https://issues.apache.org/jira/browse/AVRO-2107
             Project: Avro
          Issue Type: Bug
    Affects Versions: 1.8.2, 1.8.1
            Reporter: Darshan Mehta


I am trying to deserialise the json with array type into GenericRecord and I get the following exception:


{code:java}
Exception in thread "main" org.apache.avro.AvroTypeException: Unknown union branch sampleArrayRecordString
	at org.apache.avro.io.JsonDecoder.readIndex(JsonDecoder.java:445)
	at org.apache.avro.io.ResolvingDecoder.doAction(ResolvingDecoder.java:290)
	at org.apache.avro.io.parsing.Parser.advance(Parser.java:88)
	at org.apache.avro.io.ResolvingDecoder.readIndex(ResolvingDecoder.java:267)
	at org.apache.avro.generic.GenericDatumReader.readWithoutConversion(GenericDatumReader.java:179)
	at org.apache.avro.generic.GenericDatumReader.readArray(GenericDatumReader.java:266)
	at org.apache.avro.generic.GenericDatumReader.readWithoutConversion(GenericDatumReader.java:177)
	at org.apache.avro.generic.GenericDatumReader.read(GenericDatumReader.java:153)
	at org.apache.avro.generic.GenericDatumReader.readField(GenericDatumReader.java:232)
	at org.apache.avro.generic.GenericDatumReader.readRecord(GenericDatumReader.java:222)
	at org.apache.avro.generic.GenericDatumReader.readWithoutConversion(GenericDatumReader.java:175)
	at org.apache.avro.generic.GenericDatumReader.read(GenericDatumReader.java:153)
	at org.apache.avro.generic.GenericDatumReader.readWithoutConversion(GenericDatumReader.java:179)
	at org.apache.avro.generic.GenericDatumReader.read(GenericDatumReader.java:153)
	at org.apache.avro.generic.GenericDatumReader.readField(GenericDatumReader.java:232)
	at org.apache.avro.generic.GenericDatumReader.readRecord(GenericDatumReader.java:222)
	at org.apache.avro.generic.GenericDatumReader.readWithoutConversion(GenericDatumReader.java:175)
	at org.apache.avro.generic.GenericDatumReader.read(GenericDatumReader.java:153)
	at org.apache.avro.generic.GenericDatumReader.read(GenericDatumReader.java:145)
	at a.b.c.d.Test2.main(Test2.java:19)
{code}

Below is the code:


{code:java}
final Schema schema = Schema.parse(new File(
				"<schema_file_path>"));
		byte[] payload = Files.readAllBytes(Paths.get(
				"<json_file_path>"));

		GenericRecord record = new GenericDatumReader<GenericRecord>(schema).read(null,
				DecoderFactory.get().jsonDecoder(schema, new String(payload)));

		System.out.println(record);
{code}



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