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Posted to log4j-dev@logging.apache.org by "Jonathan Hanba (JIRA)" <ji...@apache.org> on 2015/08/01 17:54:04 UTC
[jira] [Commented] (LOG4J2-1081) Log4J 2.3.0 -
org.apache.logging.log4j.core.osgi.BundleContextSelector -
ClassNotFoundException
[ https://issues.apache.org/jira/browse/LOG4J2-1081?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14650406#comment-14650406 ]
Jonathan Hanba commented on LOG4J2-1081:
----------------------------------------
There is a correct way to fix this issue and it is not by adding a generic <DynamicImport-Package> field to the pom.xml file.Two lines have to be added to the pom.xml file for the log4j-api OSGi bundle. Basically it is not properly wired up to the log4j-core OSGi bundle (in other words it is not importing the packages needed from log4j-core). The log4j-api pom.xml file has to include these two lines under <Import-Package>
org.apache.logging.log4j.core.osgi;resolution:=runtime,
org.apache.logging.log4j.core.lookup;resolution:=runtime,
So the entire <Import-Package> in the log4j-api pom.xml file looks like this:
<Import-Package>
org.apache.logging.log4j.core.osgi;resolution:=runtime,
org.apache.logging.log4j.core.lookup;resolution:=runtime,
sun.reflect;resolution:=optional,
*
</Import-Package>
> Log4J 2.3.0 - org.apache.logging.log4j.core.osgi.BundleContextSelector - ClassNotFoundException
> -----------------------------------------------------------------------------------------------
>
> Key: LOG4J2-1081
> URL: https://issues.apache.org/jira/browse/LOG4J2-1081
> Project: Log4j 2
> Issue Type: Bug
> Components: API
> Affects Versions: 2.3
> Environment: Windows 7 x86-64
> Eclipse Mars
> org.eclipse.osgi;version='[3.10.1.v20140909-1633,3.10.1.v20140909-1633]'
> JavaSE-1.8
> Reporter: Jonathan Hanba
> Priority: Blocker
>
> I am trying to run a very basic OSGi bundle that uses Log4J version 2.3.0. When I run the bundle, I get a java.lang.ClassNotFoundException. Here is the stack trace reported by the error.
> ERROR StatusLogger Unable to create context org.apache.logging.log4j.core.osgi.BundleContextSelector java.lang.ClassNotFoundException: org.apache.logging.log4j.core.osgi.BundleContextSelector cannot be found by org.apache.logging.log4j.api_2.3.0
> at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:432)
> at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:345)
> at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:337)
> at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:160)
> at java.lang.ClassLoader.loadClass(Unknown Source)
> at java.lang.Class.forName0(Native Method)
> at java.lang.Class.forName(Unknown Source)
> 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(Unknown Source)
> at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
> at java.lang.reflect.Constructor.newInstance(Unknown Source)
> at java.lang.Class.newInstance(Unknown Source)
> at org.apache.logging.log4j.LogManager.<clinit>(LogManager.java:96)
> at com.ge.ip.systemtest2.osgi.example.Activator.<clinit>(Activator.java:16)
> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
> at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
> at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
> at java.lang.reflect.Constructor.newInstance(Unknown Source)
> at java.lang.Class.newInstance(Unknown Source)
> at org.eclipse.osgi.internal.framework.BundleContextImpl.loadBundleActivator(BundleContextImpl.java:755)
> at org.eclipse.osgi.internal.framework.BundleContextImpl.start(BundleContextImpl.java:706)
> at org.eclipse.osgi.internal.framework.EquinoxBundle.startWorker0(EquinoxBundle.java:936)
> at org.eclipse.osgi.internal.framework.EquinoxBundle$EquinoxModule.startWorker(EquinoxBundle.java:319)
> at org.eclipse.osgi.container.Module.doStart(Module.java:571)
> at org.eclipse.osgi.container.Module.start(Module.java:439)
> at org.eclipse.osgi.internal.framework.EquinoxBundle.start(EquinoxBundle.java:393)
> at aQute.launcher.Launcher.update(Launcher.java:436)
> at aQute.launcher.Launcher.activate(Launcher.java:349)
> at aQute.launcher.Launcher.run(Launcher.java:238)
> at aQute.launcher.Launcher.main(Launcher.java:87)
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