[logback-dev] [JIRA] Created: (LBCLASSIC-83) Logger.setLevel(null) will throw an NPE if the logger in question previously has a non-null level

[Ceki Gulcu (JIRA)]

Logger.setLevel(null) will throw an NPE if the logger in question previously has a non-null level 
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                 Key: LBCLASSIC-83
                 URL: http://jira.qos.ch/browse/LBCLASSIC-83
             Project: logback-classic
          Issue Type: Bug
          Components: Other
    Affects Versions: 0.9.9, 0.9.10, 0.9.11, 0.9.12
            Reporter: Ceki Gulcu
            Assignee: Ceki Gulcu
            Priority: Blocker
             Fix For: 0.9.12


This bug causes  LBCLASSIC-79 as symptom. To reproduce

Logger logger = LoggerFactory.getLogger("x");
logger.setLevel(Level.DEBUG)
logger.setLevel(null); // throws NPE


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