NPE in SlingLoggerConfig if log file can't be created

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                 Key: SLING-2149

                 URL: https://issues.apache.org/jira/browse/SLING-2149

             Project: Sling

          Issue Type: Bug

          Components: Commons

    Affects Versions: Commons Log 2.1.0

            Reporter: Carsten Ziegeler





If e.g. the default log writer file can't be created (e.g. the user has no permissions), then the writer with a null file handle is used nevertheless which then causes the Sling logger to end in NPEs when trying to write to the log.

If the file can't be created maybe stderr/stdout should be used



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