This article explains how to troubleshoot the issue with Polls for Confluence app after the upgrade/migration of the Confluence.
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Navigate to the Confluence server installed location at this path
<confluencePath>/atlassian-confluence-7.19.18/confluence/WEB-INF/classes/velocity.properties
Modify the file
velocity.properties
.Look for the propertyGo to
introspector.restrict.packages
Remove the below lines from itallowlist.classes
and add the following line to the existing values in the new linecom.opensymphony.xwork.util,\
.XWorkList
so if you add to the existing one, it will be as below
xwork2Code Block java.io.ObjectInputValidation,\ com.opensymphony.
xwork.util.XWorkList,\ net.sf.hibernate.proxy.HibernateProxy
Stop and Start start the server.
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