SLF4J "No SLF4J providers were found" warning appears during Confluence data center startup

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    • 2
    • Severity 3 - Minor
    • 4

      Issue Summary

      When starting Confluence Data center 9.2.20 on a Linux environment (specifically when installed as a service using the Linux Installer), the console output displays SLF4J warnings indicating that no providers were found. 

      Steps to Reproduce

      1. Install Confluence 9.2.20 using the standard Linux Installer.
      2. Start Confluence
      3. Observe the console output during the "Launching Confluence" phase.

      Expected Results

      No warnings generated.

      Actual Results

      The below exception is seen on the console output during installation. These warnings are not written in catalina.out or catalina.log file located in CONFLUENCE INSTALLATION_DIR/logs directory.

      Launching Confluence ...
      SLF4J: No SLF4J providers were found.
      SLF4J: Defaulting to no-operation (NOP) logger implementation
      SLF4J: See https://www.slf4j.org/codes.html#noProviders for further details.
      Your installation of Confluence 9.2.20 is now ready and can be accessed via
      your browser. 

      Workaround

      Currently there is no known workaround for this behavior. A workaround will be added here when available

        1. installer-9.2.20.console.log
          369 kB
          Tom Smallridge
        2. installer-9.2.22.console.log
          374 kB
          Tom Smallridge

              Assignee:
              Tom Smallridge
              Reporter:
              Tejaswini P
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                Created:
                Updated:
                Resolved: