[LOG4J2-920] ClassNotFoundException for BundleContextSelector when initialising in an OSGi environment

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.1
• Fix Version/s: 2.6
• Component/s: API

Environment

Apache Felix, Java 8

• Assignee: Matt Sicker
• Reporter: Ludovic HOCHET
• Created: 11/Dec/14 21:06
• Updated: 03/Nov/16 16:56
• Resolved: 09/Feb/16 02:29

Description

When initialising Log4J2 in an Apache Felix environment, I get the following exception:
ERROR StatusLogger Unable to create context org.apache.logging.log4j.core.osgi.BundleContextSelector java.lang.ClassNotFoundException: org.apache.logging.log4j.core.osgi.BundleContextSelector not found by org.apache.logging.log4j.api [78]
at org.apache.felix.framework.BundleWiringImpl.findClassOrResourceByDelegation(BundleWiringImpl.java:1556)
at org.apache.felix.framework.BundleWiringImpl.access$400(BundleWiringImpl.java:77)
at org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.loadClass(BundleWiringImpl.java:1993)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:260)
at org.apache.logging.log4j.util.LoaderUtil.loadClass(LoaderUtil.java:117)
at org.apache.logging.log4j.util.LoaderUtil.newInstanceOf(LoaderUtil.java:136)
at org.apache.logging.log4j.util.LoaderUtil.newCheckedInstanceOf(LoaderUtil.java:163)
at org.apache.logging.log4j.core.util.Loader.newCheckedInstanceOf(Loader.java:311)
at org.apache.logging.log4j.core.impl.Log4jContextFactory.createContextSelector(Log4jContextFactory.java:96)
at org.apache.logging.log4j.core.impl.Log4jContextFactory.<init>(Log4jContextFactory.java:54)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:408)
at java.lang.Class.newInstance(Class.java:438)
at org.apache.logging.log4j.LogManager.<clinit>(LogManager.java:96)
[...]

Due to a missing import of the org.apache.logging.log4j.core.osgi package in the API OSGi metadata in its pom

Issue Links

• is duplicated by: LOG4J2-1081 Log4J 2.3.0 - org.apache.logging.log4j.core.osgi.BundleContextSelector - ClassNotFoundException
• is related to: LOG4J2-1637 OSGi support is broken in Log4j2 2.7