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Posted to issues@nifi.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2018/11/07 22:02:00 UTC

[jira] [Commented] (NIFI-5800) If RecordSchema has an inner field that references a schema recursively by name, hashCode() throws StackOverflowError

    [ https://issues.apache.org/jira/browse/NIFI-5800?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16678845#comment-16678845 ] 

ASF GitHub Bot commented on NIFI-5800:
--------------------------------------

GitHub user markap14 opened a pull request:

    https://github.com/apache/nifi/pull/3157

    NIFI-5800: Do not recursively call hashCode on child schema for Recor…

    …d Field Types
    
    Thank you for submitting a contribution to Apache NiFi.
    
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    to ensure the following steps have been taken:
    
    ### For all changes:
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         in the commit message?
    
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You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/markap14/nifi NIFI-5800

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/nifi/pull/3157.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #3157
    
----
commit 111daf241d867ef7624a7f7304d286fce43bbacb
Author: Mark Payne <ma...@...>
Date:   2018-11-07T22:00:51Z

    NIFI-5800: Do not recursively call hashCode on child schema for Record Field Types

----


> 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
>            Priority: Major
>
> 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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