How to troubleshoot the issue with Polls for Confluence app after upgrade/migration of the Confluence to 7.19.18 and above versions of 7.x
\uD83D\uDCD8 Instructions
Follow the below steps:
Navigate to the Confluence server installed location at this path
<confluencePath>/atlassian-confluence-7.19.18/confluence/WEB-INF/classes/velocity.properties
Make below changes to the file
velocity.properties
- Go tointrospector.allowlist.classes
- Add this line to the existing values in the new linecom.opensymphony.xwork.util.XWorkList
Sample reference:
java.io.ObjectInputValidation,\ com.opensymphony.xwork.util.XWorkList,\ net.sf.hibernate.proxy.HibernateProxy
Stop and start the server.
This workaround is required only for 7.x versions, not 8.x versions.