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This article explains how How to troubleshoot the issue with Polls for Confluence app after the upgrade/migration of the Confluence to 7.19.18 and above versions of 7.x

\uD83D\uDCD8 Instructions

Follow the below steps:

  1. Navigate to the Confluence server installed location at this path <confluencePath>/atlassian-confluence-7.19.18/confluence/WEB-INF/classes/velocity.properties

  2. Modify the file velocity.properties

  3. Go to introspector.allowlist.classes and add the following line to the existing values in the new line com.opensymphony.xwork.util.XWorkList

    so if you add to the existing one, it will be as below

    Code Block
         java.io.ObjectInputValidation,\   
         com.opensymphony.xwork.util.XWorkList,\
         net.sf.hibernate.proxy.HibernateProxy
  4. Stop and start the server.

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