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https://issues.apache.org/jira/browse/LOG4J2-1637?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15634666#comment-15634666
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Remko Popma commented on LOG4J2-1637:
-------------------------------------
The LOG4J2-1660 changes are a good thing regardless of the OSGi issue. I wish I
had thought of introducing ReadOnlyThreadContextMap sooner when working on
LOG4J2-1349. I was never happy with the package-protected method in
ThreadContext which then needed to be made public again in the
ThreadContextAccessor class for the ContextInjectors. The new solution is much
cleaner.
About the unit test: are we sure it is testing the right thing then? There may
actually be two problems:
# [~lhochet] mentioned "Log4j2 2.7 fails to initialise in an OSGi environement
complaining that java.lang.NoClassDefFoundError:
org/apache/logging/log4j/Logger" (no stack trace, so I am not sure if the
underlying issue is impacted by my fix...)
# [~pbelbin] mentioned "Severe: Error invoking ServletContainerInitializer
org.apache.logging.log4j.web.Log4jServletContainerInitializer
java.lang.IllegalAccessError: tried to access method
org.apache.logging.log4j.ThreadContext.getThreadContextMap()Lorg/apache/logging/log4j/spi/ThreadContextMap;
from class org.apache.logging.log4j.ThreadContextAccess"
This last issue should be addressed by the LOG4J2-1660 fix. Peter, and Ludovic,
can you both check if the issue still occurs with the latest code in master?
> OSGi support is broken in Log4j2 2.7
> ------------------------------------
>
> Key: LOG4J2-1637
> URL: https://issues.apache.org/jira/browse/LOG4J2-1637
> Project: Log4j 2
> Issue Type: Bug
> Components: Core
> Affects Versions: 2.7
> Environment: Apache Felix, Java 8
> Reporter: Ludovic HOCHET
> Attachments: patch-log4j2-1637.diff
>
>
> Log4j2 2.7 fails to initialise in an OSGi environement complaining that
> java.lang.NoClassDefFoundError: org/apache/logging/log4j/Logger.
> Running the OSGi tests on Log4j API also fails:
> org.apache.logging.log4j.osgi.felix.FelixLoadApiBundleTest
> testMissingImportOfCoreOsgiPackage(org.apache.logging.log4j.osgi.felix.FelixLoadApiBundleTest)
> Time elapsed: 1.031 sec <<< ERROR!
> org.osgi.framework.BundleException: Activator start error in bundle
> org.apache.logging.log4j.core [2].
> Caused by: java.lang.NoClassDefFoundError: org/apache/logging/log4j/Logger
> Caused by: java.lang.ClassNotFoundException: org.apache.logging.log4j.Logger
> not found by org.apache.logging.log4j.core [2]
> [... likewise for the other tests and equinox]
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