Uploaded image for project: 'Log4j 2'
  1. Log4j 2
  2. LOG4J2-2316

NullPointerException while calling Configurator.setLevel()

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 2.11.0
    • Fix Version/s: None
    • Component/s: Core, Web/Servlet
    • Labels:
      None
    • Environment:

      webapplication running in tomcat 8.5

      Description

      Hi I want to report an intermittent issue in my webapplication wherein log4j throws an NPE.

      Here is the stack trace:

      java.lang.NullPointerException

                      at org.apache.logging.log4j.core.config.LoggerConfig.getLevel(LoggerConfig.java:268)

                      at org.apache.logging.log4j.core.Logger$PrivateConfig.<init>(Logger.java:384)

                      at org.apache.logging.log4j.core.Logger.updateConfiguration(Logger.java:365)

                      at org.apache.logging.log4j.core.LoggerContext.updateLoggers(LoggerContext.java:652)

                      at org.apache.logging.log4j.core.LoggerContext.updateLoggers(LoggerContext.java:641)

                      at org.apache.logging.log4j.core.config.Configurator.setLevel(Configurator.java:296)

                      at com.netbackup.logging.util.DebugLoggerFactory.getLogger(DebugLoggerFactory.java:346)

                      at com.netbackup.logging.util.DebugLoggerFactory.getLogger(DebugLoggerFactory.java:359)

                      at com.netbackup.logging.util.WebServiceLoggerFactory.getLogger(WebServiceLoggerFactory.java:14)

                      at com.netbackup.common.logging.LoggerFactory.getLogger(LoggerFactory.java:34)

       

      Log4j code where the NPE occurs: (LoggerConfig.java)

          /**
           * Returns the logging Level.
           *
           * @return the logging Level.
           */
          public Level getLevel()

      {         return level == null ? parent.getLevel() : level;     }

      //This is the line where the NPE gets thrown

       

      Inference is parent(LoggerConfig) itself was null. When can this situation arise?

        Attachments

          Activity

            People

            • Assignee:
              Unassigned
              Reporter:
              Ranjit.Dsouza Ranjit Dsouza
            • Votes:
              0 Vote for this issue
              Watchers:
              5 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved: