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Posted to issues@nifi.apache.org by "Matt Burgess (Jira)" <ji...@apache.org> on 2021/04/07 15:57:00 UTC

[jira] [Created] (NIFI-8400) SystemDiagnostics throws NPE on Windows

Matt Burgess created NIFI-8400:
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             Summary: 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


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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