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The information contained in this section applies to IBM WebSphere Commerce Version 7.0.0.9 and Feautre Pack 8. The documentation also applies to all subsequent releases and modifications until otherwise indicated in new editions.
Troubleshooting
Feature pack issues
If you encounter problems while installing a WebSphere Commerce feature pack or enabling a feature on a WebSphere Commerce instance, review this section for common issues.
IllegalArgumentException after feature enablement
Receive IllegalArgumentException in SystemOut.log after you upgrade or migrate from a lower feature pack to a higher feature pack and enable a feature.

Troubleshooting: IllegalArgumentException after feature enablement

Receive IllegalArgumentException in SystemOut.log after you upgrade or migrate from a lower feature pack to a higher feature pack and enable a feature.

Problem

After upgrading or migrating from a lower feature pack to a higher feature pack and enabling a feature the following message is printed to the SystemOut.log:

Caused by: java.lang.IllegalArgumentException: The specified resource bundle name 
"com.ibm.commerce.foundation.rest.logging.properties.WcRestMessages" is inconsistent with the 
existing one "com.ibm.commerce.foundation.logging.properties.WcFoundationMessages".

Solution

You need to restart the server after you enable the feature.