Log4j 2
  1. Log4j 2
  2. LOG4J2-345

logging.log4j-1.2-api doesn't export the log4j API 1.2. Dependent bundles can not be resolved.

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      Description

      Hi all Log4j/OSGi experts!

      Yesterday I started to migrate from log4j to log4j2. I replaced all Log4j 1.x bundles with log4j-1.2-api as described here: http://logging.apache.org/log4j/2.x/log4j-1.2-api/index.html

      But I got following error:

      Unresolved constraint in bundle MyBundle [21]: Unable to resolve 21.0: missing requirement [21.0] osgi.wiring.package; (&(osgi.wiring.package=org.apache.log4j)(version>=1.2.0)(!(version>=2.0.0)))

      so...I checked the capabilities of the log4j-1.2-api bundle:

      g! inspect cap * 11
      org.apache.logging.log4j-1.2-api [11] provides:
      -----------------------------------------------
      osgi.wiring.bundle; org.apache.logging.log4j-1.2-api 2.0.0.beta8 [UNUSED]
      osgi.wiring.host; org.apache.logging.log4j-1.2-api 2.0.0.beta8 [UNUSED]

      As you can see logging.log4j-1.2-api doesn't export the log4j API 1.2. It still requires log4j 1.2. All dependent bundles can not be resolved until I add the old log4j.jar.

      The maven-bundle-plugin does not export the packages.

      Roland

      1. log4j2 1.2api.patch
        2 kB
        Roland Weiglhofer
      2. log4j2-345-patch-issue.png
        94 kB
        Remko Popma
      3. 0001-Add-log4j-1.x-OSGi-bundle.patch
        5 kB
        Matt Sicker

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          • Assignee:
            Unassigned
            Reporter:
            Roland Weiglhofer
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            • Created:
              Updated:

              Development