Confluence will not start due to ClassNotFoundException: SLF4JBridgeHandler
Platform Notice: Data Center - This article applies to Atlassian products on the Data Center platform.
Note that this knowledge base article was created for the Data Center version of the product. Data Center knowledge base articles for non-Data Center-specific features may also work for Server versions of the product, however they have not been tested. Support for Server* products ended on February 15th 2024. If you are running a Server product, you can visit the Atlassian Server end of support announcement to review your migration options.
*Except Fisheye and Crucible
Symptoms
Confluence will not start up.
The following appears in the atlassian-confluence.log:
INFO: Starting Servlet Engine: Apache Tomcat/6.0.32
Handler error
java.lang.ClassNotFoundException: org.slf4j.bridge.SLF4JBridgeHandler
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1680)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1526)
at org.apache.juli.ClassLoaderLogManager.readConfiguration(ClassLoaderLogManager.java:515)
at org.apache.juli.ClassLoaderLogManager.readConfiguration(ClassLoaderLogManager.java:460)
at org.apache.juli.ClassLoaderLogManager$2.run(ClassLoaderLogManager.java:373)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.juli.ClassLoaderLogManager.getClassLoaderInfo(ClassLoaderLogManager.java:370)
at org.apache.juli.ClassLoaderLogManager.getLogger(ClassLoaderLogManager.java:224)
at java.util.logging.LogManager.demandLogger(LogManager.java:389)
at java.util.logging.Logger.getLogger(Logger.java:288)
at org.apache.juli.logging.DirectJDKLog.<init>(DirectJDKLog.java:71)
at org.apache.juli.logging.DirectJDKLog.getInstance(DirectJDKLog.java:178)
at org.apache.juli.logging.LogFactory.getInstance(LogFactory.java:171)
at org.apache.juli.logging.LogFactory.getLog(LogFactory.java:316)
at org.apache.catalina.core.ContainerBase.getLogger(ContainerBase.java:395)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4586)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:840)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463)
at org.apache.catalina.core.StandardService.start(StandardService.java:525)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:754)
at org.apache.catalina.startup.Catalina.start(Catalina.java:595)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
Nov 20, 2012 9:10:59 PM org.apache.catalina.core.StandardContext start
SEVERE: Error listenerStartCause
Confluence requires a jar file that is missing or corrupted.
Resolution
- Download new copy of Confluence matching the installed version from http://www.atlassian.com/software/confluence/download
- Verify complete download and extract to new location using archive utility
- Copy any customized files to new location. (confluence-init.properties, server.xml, web.xml, etc.)
- Startup Confluence.
Last modified on Dec 19, 2024
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