[
https://issues.apache.org/jira/browse/LOG4J2-920?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14651195#comment-14651195
]
Jonathan Hanba commented on LOG4J2-920:
---------------------------------------
Running the OSGi Log4J 2.3.0 bundle in Felix OSGi Framework 4.4.1 results in
this error as noted in the original bug report.
--------------------------------------------------------------------------------
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 [3]
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(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:18)
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.felix.framework.Felix.createBundleActivator(Felix.java:4362)
at org.apache.felix.framework.Felix.activateBundle(Felix.java:2149)
at org.apache.felix.framework.Felix.startBundle(Felix.java:2072)
at org.apache.felix.framework.BundleImpl.start(BundleImpl.java:976)
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)
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 [3]
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(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:18)
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.felix.framework.Felix.createBundleActivator(Felix.java:4362)
at org.apache.felix.framework.Felix.activateBundle(Felix.java:2149)
at org.apache.felix.framework.Felix.startBundle(Felix.java:2072)
at org.apache.felix.framework.BundleImpl.start(BundleImpl.java:976)
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)
2015-08-02 15:57:21,251 WARN JNDI lookup class is not available because this
JRE does not support JNDI. JNDI string lookups will not be available,
continuing configuration. java.lang.ClassNotFoundException:
org.apache.logging.log4j.core.lookup.JndiLookup not found by
org.apache.logging.log4j.api [3]
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(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.lookup.Interpolator.<init>(Interpolator.java:92)
at
org.apache.logging.log4j.core.config.AbstractConfiguration.<init>(AbstractConfiguration.java:104)
at
org.apache.logging.log4j.core.config.DefaultConfiguration.<init>(DefaultConfiguration.java:55)
at
org.apache.logging.log4j.core.layout.PatternLayout$Builder.build(PatternLayout.java:374)
at
org.apache.logging.log4j.core.layout.PatternLayout.createDefaultLayout(PatternLayout.java:279)
at
org.apache.logging.log4j.core.appender.ConsoleAppender$Builder.<init>(ConsoleAppender.java:119)
at
org.apache.logging.log4j.core.appender.ConsoleAppender.newBuilder(ConsoleAppender.java:114)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at
org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.createBuilder(PluginBuilder.java:160)
at
org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.build(PluginBuilder.java:120)
at
org.apache.logging.log4j.core.config.AbstractConfiguration.createPluginObject(AbstractConfiguration.java:766)
at
org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:706)
at
org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:698)
at
org.apache.logging.log4j.core.config.AbstractConfiguration.doConfigure(AbstractConfiguration.java:358)
at
org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:161)
at
org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:361)
at
org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:426)
at
org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:442)
at
org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:138)
at
org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:147)
at
org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:41)
at org.apache.logging.log4j.LogManager.getContext(LogManager.java:175)
at org.apache.logging.log4j.LogManager.getLogger(LogManager.java:426)
at
com.ge.ip.systemtest2.osgi.example.Activator.<clinit>(Activator.java:18)
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.felix.framework.Felix.createBundleActivator(Felix.java:4362)
at org.apache.felix.framework.Felix.activateBundle(Felix.java:2149)
at org.apache.felix.framework.Felix.startBundle(Felix.java:2072)
at org.apache.felix.framework.BundleImpl.start(BundleImpl.java:976)
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)
2015-08-02 15:57:21,254 WARN JMX runtime input lookup class is not available
because this JRE does not support JMX. JMX lookups will not be available,
continuing configuration. java.lang.ClassNotFoundException:
org.apache.logging.log4j.core.lookup.JmxRuntimeInputArgumentsLookup not found
by org.apache.logging.log4j.api [3]
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(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.lookup.Interpolator.<init>(Interpolator.java:103)
at
org.apache.logging.log4j.core.config.AbstractConfiguration.<init>(AbstractConfiguration.java:104)
at
org.apache.logging.log4j.core.config.DefaultConfiguration.<init>(DefaultConfiguration.java:55)
at
org.apache.logging.log4j.core.layout.PatternLayout$Builder.build(PatternLayout.java:374)
at
org.apache.logging.log4j.core.layout.PatternLayout.createDefaultLayout(PatternLayout.java:279)
at
org.apache.logging.log4j.core.appender.ConsoleAppender$Builder.<init>(ConsoleAppender.java:119)
at
org.apache.logging.log4j.core.appender.ConsoleAppender.newBuilder(ConsoleAppender.java:114)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at
org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.createBuilder(PluginBuilder.java:160)
at
org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.build(PluginBuilder.java:120)
at
org.apache.logging.log4j.core.config.AbstractConfiguration.createPluginObject(AbstractConfiguration.java:766)
at
org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:706)
at
org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:698)
at
org.apache.logging.log4j.core.config.AbstractConfiguration.doConfigure(AbstractConfiguration.java:358)
at
org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:161)
at
org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:361)
at
org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:426)
at
org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:442)
at
org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:138)
at
org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:147)
at
org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:41)
at org.apache.logging.log4j.LogManager.getContext(LogManager.java:175)
at org.apache.logging.log4j.LogManager.getLogger(LogManager.java:426)
at
com.ge.ip.systemtest2.osgi.example.Activator.<clinit>(Activator.java:18)
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.felix.framework.Felix.createBundleActivator(Felix.java:4362)
at org.apache.felix.framework.Felix.activateBundle(Felix.java:2149)
at org.apache.felix.framework.Felix.startBundle(Felix.java:2072)
at org.apache.felix.framework.BundleImpl.start(BundleImpl.java:976)
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)
--------------------------------------------------------------------------------
Adjusting the pom.xml file in the log4j-api bundle to contain the following
OSGi section addresses the above exceptions. What's clearly missing from the
original pom.xml is the OSGi specification to import the Log4J OSGi package,
which is the reason for the ClassNotFoundException. It's simply not being
imported, so the class is not found. The third exception listed above relates
to a ClassNotFoundException for class
org.apache.logging.log4j.core.lookup.JndiLookup. Again, the lookup package is
simply not being imported, so the class is not found. The addition of these two
lines under the Import-Package section in the log4j-api pom.xml file clearly
addresses these two exceptions.
--------------------------------------------------------------------------------
<plugin>
<groupId>org.apache.felix</groupId>
<artifactId>maven-bundle-plugin</artifactId>
<configuration>
<instructions>
<Export-Package>org.apache.logging.log4j.*</Export-Package>
<Import-Package>
org.apache.logging.log4j.core.osgi;resolution:=runtime,
org.apache.logging.log4j.core.lookup;resolution:=runtime,
sun.reflect;resolution:=optional,
*
</Import-Package>
<Bundle-Activator>org.apache.logging.log4j.util.Activator</Bundle-Activator>
</instructions>
</configuration>
</plugin>
--------------------------------------------------------------------------------
As shown below, after log4j-api has been rebuilt with the Import-Package
corrections to the pom.xml file, Log4J clearly works without exceptions.
--------------------------------------------------------------------------------
16:21:50.677 [main] INFO Hello World!
> ClassNotFoundException for BundleContextSelector when initialising in an OSGi
> environment
> -----------------------------------------------------------------------------------------
>
> Key: LOG4J2-920
> URL: https://issues.apache.org/jira/browse/LOG4J2-920
> Project: Log4j 2
> Issue Type: Bug
> Components: API
> Affects Versions: 2.1
> Environment: Apache Felix, Java 8
> Reporter: Ludovic HOCHET
> Attachments: LOG4J2-920.zip, patch.diff, patch2.diff, pom.xml
>
>
> 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
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