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https://issues.apache.org/jira/browse/NIFI-8400?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17316944#comment-17316944
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ASF subversion and git services commented on NIFI-8400:
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Commit 33ec8c8427eb2cebf52f5f91e81785bc285e6544 in nifi's branch
refs/heads/main from Matt Burgess
[ https://gitbox.apache.org/repos/asf?p=nifi.git;h=33ec8c8 ]
NIFI-8400: Use longs in SystemDiagnostics, add null checks
This closes #4980.
Signed-off-by: Peter Turcsanyi <turcsa...@apache.org>
> SystemDiagnostics throws NPE on Windows
> ---------------------------------------
>
> Key: NIFI-8400
> URL: https://issues.apache.org/jira/browse/NIFI-8400
> Project: Apache NiFi
> Issue Type: Bug
> Components: Core Framework
> Reporter: Matt Burgess
> Assignee: Matt Burgess
> Priority: Major
> Fix For: 1.14.0
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> SystemDiagnostics includes some Long member variables such as openFileHandles
> that are not populated on Windows, so they remain null and when
> getOpenFileHandles() is called, the null is cast to a long which throws an
> NPE.
> The member variables should be long not Long, thereby getting a default value
> of zero and avoiding an NPE when the values are not populated. If Long is
> used elsewhere, a null check should be added to avoid possible NPEs when
> calling the setter methods.
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