[LOG4J2-345] logging.log4j-1.2-api doesn't export the log4j API 1.2. Dependent bundles can not be resolved.

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 2.0-beta4, 2.0-beta8, 2.0-beta9, 2.0-rc1
• Fix Version/s: 2.0-rc2
• Component/s: Log4j 1.2 bridge
• Labels: Bundle Export-Package Log4j-1.2 Maven-Bundle-Plugin OSGi POM

Environment

OSGi / Apache Felix 4.x

• Epic Link: OSGi Support
• Assignee: Matt Sicker
• Reporter: Roland Weiglhofer
• Created: 12/Aug/13 10:50
• Updated: 22/Apr/14 02:32
• Resolved: 22/Apr/14 02:32

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