Confluence Doesn't Start Due to Whiteboard Plugin
Platform Notice: Data Center Only - This article only applies to Atlassian products on the Data Center platform.
Note that this KB was created for the Data Center version of the product. Data Center KBs 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
This problem is related to a third party plugin, and therefore not supported by Atlassian. See Atlassian Supported Plugins for more information.
Symptoms
Confluence refuses to start. The following appears in the atlassian-confluence.log:
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2009-03-11 02:49:52,910 INFO [SpringOsgiExtenderThread-6] [osgi.context.support.OsgiBundleXmlApplicationContext] publishContextAsOsgiServiceIfNecessary Publishing application context as OSGi service with properties {org.springframework.context.service.name=confluence.extra.dynamictasklist2, Bundle-SymbolicName=confluence.extra.dynamictasklist2, Bundle-Version=3.1.1}
2009-03-11 02:50:04,676 ERROR [main] [atlassian.confluence.event.ConfluenceEventManager] publishEvent An exception was encountered while processing the event: com.atlassian.confluence.event.events.admin.ConfluenceReadyEvent[source=com.atlassian.confluence.upgrade.impl.DefaultUpgradeManager@dc942b]
java.lang.StringIndexOutOfBoundsException: String index out of range: -1
at java.lang.String.substring(String.java:1938)
at org.codehaus.classworlds.uberjar.protocol.jar.NonLockingJarUrlConnection.<init>(NonLockingJarUrlConnection.java:104)
at org.codehaus.classworlds.uberjar.protocol.jar.NonLockingJarHandler.openConnection(NonLockingJarHandler.java:110)
at java.net.URL.openConnection(URL.java:945)
at java.net.URL.openStream(URL.java:1009)
........
at $Proxy6.loadAllPlugins(Unknown Source)
at com.atlassian.plugin.DefaultPluginManager.init(DefaultPluginManager.java:101)
Cause
Confluence is run with an incompatible Whiteboard plugin.
Resolution
Delete the plugin from Confluence by purging it from the plugindata table:
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DELETE FROM plugindata where filename like '%whiteboard%';
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