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https://issues.apache.org/jira/browse/NIFI-572?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14526022#comment-14526022
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ASF subversion and git services commented on NIFI-572:
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Commit fea59e3249324caa37d14c3a3366321e3f2f8242 in incubator-nifi's branch
refs/heads/develop from [~markap14]
[ https://git-wip-us.apache.org/repos/asf?p=incubator-nifi.git;h=fea59e3 ]
NIFI-572: Do not set UUID as being modified when creating a clone
> Set null Long to 0 before dereference in
> PersistentProvenanceRepository.submitQuery
> ------------------------------------------------------------------------------------
>
> Key: NIFI-572
> URL: https://issues.apache.org/jira/browse/NIFI-572
> Project: Apache NiFi
> Issue Type: Bug
> Components: Core Framework
> Affects Versions: 0.0.2
> Reporter: Mark Latimer
> Priority: Trivial
> Fix For: 0.1.0
>
> Attachments:
> 0001-NIFI-572-possible-null-dereference-in-PersistentProv.patch,
> 0001-NIFI-573-fix-NPE-in-nifi.sh-and-clean-up-open-stream.patch
>
>
> {code}
> final Long maxEventId = getMaxEventId();
> if (maxEventId == null) { // maxEventId may be null
>
> result.getResult().update(Collections.<ProvenanceEventRecord>emptyList(), 0L);
> }
> ...
> // null maybe dereferenced
> final long totalNumDocs = maxEventId - minIndexedId;
> {code}
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