Legacy Knowledge Base
Published Sep. 10, 2025

Boot Delegation List Did Not Upgrade Correctly

Written By

Kenny Back

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Issue

We are seeing the following errors in the console log after upgrading:

  • ERROR - NoClassDefFound
  • ERROR - Unable to Execute Method ProcessMax 
  • ERROR - Expando Bridge Cannot be Found

Environment

  • DXP 7.1
  • DXP 7.2
  • DXP 7.3
  • DXP 7.4

Resolution

  • Sometimes certain packages are not transferred properly in the upgrade process resulting in these kind of errors. If you check the portal.properties file in both instances and the new instance is missing packages from the old instance under the property list:
module.framework.properties.org.osgi.framework.bootdelegation
             then you must add them.
  • The best way is to just copy the entire boot delegation list from the portal.properties of the previous instance and paste them all into a portal-ext.properties file of the new instance. 
  • Please keep in mind too that nothing is being installed here, doing this is just allowing those missing classes.
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