Confluence Will Not Update or Install Add-ons

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Symptoms

Confluence starts and seems to operate normally except when trying to install or update add-ons.  

The following appears in the atlassian-confluence.log:

ERROR [ThreadPoolAsyncTaskExecutor::Thread 8] [plugin.osgi.factory.OsgiPlugin] onPluginContainerFailed Unable to start the plugin container for plugin com.atlassian.activeobjects.activeobjects-plugin
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'handler' defined in URL [bundle://29.0:0/META-INF/spring/web-context.xml]: Initialization of bean failed; nested exception is java.lang.NoClassDefFoundError: javax/servlet/ServletContext 

Cause

This is caused by incompatibility with Tomcat 7. Please make sure your Confluence version is using Supported Platforms.

Resolution

  • Install Apache Tomcat 6, or use the Atlassian supplied 'std' or standalone version of Confluence

Last modified on Mar 30, 2016

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