Dashboard is not rendering properly
Problem
Confluence dashboard is not rendering properly. Here is how it looks:
And the following appears in the atlassian-confluence.log
:
2014-12-24 15:05:44,092 ERROR [main] [atlassian.event.internal.AsynchronousAbleEventDispatcher] run There was an exception thrown trying to dispatch event 'com.atlassian.plugin.event.events.PluginFrameworkStartingEvent@1cab19e2' from the invoker 'SingleParameterMethodListenerInvoker{method=public void com.atlassian.plugin.osgi.container.felix.FelixOsgiContainerManager.onStart(com.atlassian.plugin.event.events.PluginFrameworkStartingEvent), listener=com.atlassian.plugin.osgi.container.felix.FelixOsgiContainerManager@4ef2ab73}'.
java.lang.RuntimeException: java.util.ArrayList cannot be cast to [Ljava.lang.Class;
at com.atlassian.event.internal.SingleParameterMethodListenerInvoker.invoke(SingleParameterMethodListenerInvoker.java:54)
at com.atlassian.event.internal.AsynchronousAbleEventDispatcher$2.run(AsynchronousAbleEventDispatcher.java:66)
at com.atlassian.event.internal.AsynchronousAbleEventDispatcher$1.execute(AsynchronousAbleEventDispatcher.java:32)
at com.atlassian.event.internal.AsynchronousAbleEventDispatcher.dispatch(AsynchronousAbleEventDispatcher.java:60)
at com.atlassian.event.internal.EventPublisherImpl.invokeListeners(EventPublisherImpl.java:152)
at com.atlassian.event.internal.EventPublisherImpl.publish(EventPublisherImpl.java:71)
..
Caused by: java.lang.ClassCastException: java.util.ArrayList cannot be cast to [Ljava.lang.Class;
at com.atlassian.plugin.spring.SpringHostComponentProviderFactoryBean$SpringHostComponentProvider.provideBeans(SpringHostComponentProviderFactoryBean.java:153)
at com.atlassian.plugin.spring.SpringHostComponentProviderFactoryBean$SpringHostComponentProvider.provide(SpringHostComponentProviderFactoryBean.java:122)
at com.atlassian.plugin.osgi.container.felix.FelixOsgiContainerManager.collectHostComponents(FelixOsgiContainerManager.java:482)
at com.atlassian.plugin.osgi.container.felix.FelixOsgiContainerManager.start(FelixOsgiContainerManager.java:241)
at com.atlassian.plugin.osgi.container.felix.FelixOsgiContainerManager.onStart(FelixOsgiContainerManager.java:203)
Cause
This can be possibly caused by using an unsupported version of Java.
Resolution
Make sure that you are running your confluence instance on a supported version of Java according to our documentation on Supported Platforms.
Last modified on Mar 30, 2016
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