Summary

After updating App in Confluence, you may find that certain functions related to that App do not render correctly.

Diagnosis

Additionally, the following appears in the atlassian-confluence.log

ERROR [ajp-bio-8009-exec-142] [plugin.descriptor.web.ConfluenceWebInterfaceManager] getHtml Failed to render web panel: com.atlassian.plugin.web.descriptors.DefaultWebPanelModuleDescriptor$ContextAwareWebPanel@a99a6ea
org.springframework.osgi.service.importer.ServiceProxyDestroyedException: service proxy has been destroyed

Examine the full stack trace to find class names similar to the App that have been recently updated.

...
at com.sun.proxy.$Proxy2565.getBaseUrl(Unknown Source)
at com.atlassian.upm.license.storage.lib.ThirdPartyPluginLicenseStorageManagerImpl.getPluginManagementUri(ThirdPartyPluginLicenseStorageManagerImpl.java:219)
at com.vendor.plugin.confluence.license.vendorLicenseManager.getLicenseManagementURL(GliffyLicenseManager.java:153)
at com.vendor.plugin.confluence.panel.FooterContextProvider.getContextMap(FooterContextProvider.java:44)
at com.atlassian.plugin.web.descriptors.DefaultWebPanelModuleDescriptor$ContextAwareWebPanel.getHtml(DefaultWebPanelModuleDescriptor.java:144)
...

Note: plugin.descriptor.web.ConfluenceWebInterfaceManager was called just before the faulty App - this is a good way to ensure you're looking at the correct App, to verify that you have correctly identified the App, disable it temporarily. The logs should show no more entries. You may see similar entries, depending on how many Apps are affected by this problem. Repeat the diagnosis until all affected Apps have been identified.

Cause

App or app module failed to install / update properly

Solution

• Ensure that the Universal Plugin Manager is at the most recent version

• Uninstall the offending Add-ons via the Universal Plugin Manager

• Reinstall the correct version of the offending App