Mark Payne created NIFI-5800:
--------------------------------
Summary: If RecordSchema has an inner field that references a
schema recursively by name, hashCode() throws StackOverflowError
Key: NIFI-5800
URL: https://issues.apache.org/jira/browse/NIFI-5800
Project: Apache NiFi
Issue Type: Bug
Reporter: Mark Payne
If we have a schema where a field is of type RECORD and references an
outer-level schema, we get StackOverflowError. For example:
{
"name": "person",
"namespace": "nifi",
"type": "record",
"fields": [
{ "name": "name", "type": "string" },
{ "name": "mother", "type": "person" }
]
}
In this case, if we attempt to add this schema to a HashMap, we get the
following error:
2018-11-07 19:09:33,021 ERROR [Timer-Driven Process Thread-38]
o.a.n.p.k.pubsub.ConsumeKafkaRecord_2_0
ConsumeKafkaRecord_2_0[id=ef6bd50b-0166-1000-ffff-fffff55a7995] Exception while
processing data from kafka so will close the lease
org.apache.nifi.processors.kafka.pubsub.ConsumerPool$SimpleConsumerLease@26706081
due to java.lang.StackOverflowError: java.lang.StackOverflowError
java.lang.StackOverflowError: null
at java.util.AbstractList.hashCode(AbstractList.java:540)
at
java.util.Collections$UnmodifiableList.hashCode(Collections.java:1307)
at
org.apache.nifi.serialization.SimpleRecordSchema.hashCode(SimpleRecordSchema.java:172)
at
org.apache.nifi.serialization.record.type.RecordDataType.hashCode(RecordDataType.java:45)
at
org.apache.nifi.serialization.record.type.ArrayDataType.hashCode(ArrayDataType.java:44)
at
org.apache.nifi.serialization.record.RecordField.hashCode(RecordField.java:108)
at java.util.AbstractList.hashCode(AbstractList.java:541)
at
java.util.Collections$UnmodifiableList.hashCode(Collections.java:1307)
at
org.apache.nifi.serialization.SimpleRecordSchema.hashCode(SimpleRecordSchema.java:172)
at
org.apache.nifi.serialization.record.type.RecordDataType.hashCode(RecordDataType.java:45)
at
org.apache.nifi.serialization.record.type.ArrayDataType.hashCode(ArrayDataType.java:44)
at
org.apache.nifi.serialization.record.RecordField.hashCode(RecordField.java:108)
at java.util.AbstractList.hashCode(AbstractList.java:541)
at
java.util.Collections$UnmodifiableList.hashCode(Collections.java:1307)
at
org.apache.nifi.serialization.SimpleRecordSchema.hashCode(SimpleRecordSchema.java:172)
at
org.apache.nifi.serialization.record.type.RecordDataType.hashCode(RecordDataType.java:45)
at
org.apache.nifi.serialization.record.type.ArrayDataType.hashCode(ArrayDataType.java:44)
at
org.apache.nifi.serialization.record.RecordField.hashCode(RecordField.java:108)
at java.util.AbstractList.hashCode(AbstractList.java:541)
at
java.util.Collections$UnmodifiableList.hashCode(Collections.java:1307)
at
org.apache.nifi.serialization.SimpleRecordSchema.hashCode(SimpleRecordSchema.java:172)
at
org.apache.nifi.serialization.record.type.RecordDataType.hashCode(RecordDataType.java:45)
at
org.apache.nifi.serialization.record.type.ArrayDataType.hashCode(ArrayDataType.java:44)
at
org.apache.nifi.serialization.record.RecordField.hashCode(RecordField.java:108)
at java.util.AbstractList.hashCode(AbstractList.java:541)
at
java.util.Collections$UnmodifiableList.hashCode(Collections.java:1307)
at
org.apache.nifi.serialization.SimpleRecordSchema.hashCode(SimpleRecordSchema.java:172)
at
org.apache.nifi.serialization.record.type.RecordDataType.hashCode(RecordDataType.java:45)
at
org.apache.nifi.serialization.record.type.ArrayDataType.hashCode(ArrayDataType.java:44)
at
org.apache.nifi.serialization.record.RecordField.hashCode(RecordField.java:108)
at java.util.AbstractList.hashCode(AbstractList.java:541)
at
java.util.Collections$UnmodifiableList.hashCode(Collections.java:1307)
...
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