Joseph Percivall created NIFI-5775:
--------------------------------------
Summary: DataTypeUtils "toString" incorrectly treats value as a
"byte" when passing an array leading to ClassCastException
Key: NIFI-5775
URL: https://issues.apache.org/jira/browse/NIFI-5775
Project: Apache NiFi
Issue Type: Bug
Affects Versions: 1.8.0
Reporter: Joseph Percivall
To reproduce, change this line[1] to either put "String" as the first choice of
record type or just set the key to use string.
The resulting error:
{noformat}
java.lang.ClassCastException: java.lang.String cannot be cast to java.lang.Byte
at
org.apache.nifi.serialization.record.util.DataTypeUtils.toString(DataTypeUtils.java:530)
at
org.apache.nifi.serialization.record.util.DataTypeUtils.convertType(DataTypeUtils.java:147)
at
org.apache.nifi.serialization.record.util.DataTypeUtils.convertType(DataTypeUtils.java:115)
at
org.apache.nifi.json.WriteJsonResult.writeValue(WriteJsonResult.java:284)
at
org.apache.nifi.json.WriteJsonResult.writeRecord(WriteJsonResult.java:187)
at
org.apache.nifi.json.WriteJsonResult.writeRecord(WriteJsonResult.java:136)
at
org.apache.nifi.json.TestWriteJsonResult.testChoiceArray(TestWriteJsonResult.java:494)
{noformat}
[1]
https://github.com/apache/nifi/blob/master/nifi-nar-bundles/nifi-standard-services/nifi-record-serialization-services-bundle/nifi-record-serialization-services/src/test/java/org/apache/nifi/json/TestWriteJsonResult.java#L479
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