About messages output to the log when transporting in GMU

Document ID : KB000097664
Last Modified Date : 23/05/2018
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Question:
When "migrateIn" is done, the following error is sometimes outputted in ssg.log. 
SEVERE 127 org.hibernate.util.JDBCExceptionReporter: Duplicate entry 'com.l7tech.external.assertions.apiportalintegration.server.Porta' for key 'i_classname_name' 

Result: 
The "migrateIn" succeeds. 
It seems there is no problem in the operation. 
However, the message is "SEVERE". 

. What does the message mean? 
. Is this message the problem? 
Environment:
API Gateway
API Portal
 
Answer:
A database record that com.l7tech.external.assertions.apiportalintegration.server.ModuleLoadListener is trying to create was already created the GMU. 
This log entry only occurs when importing bundles with Gateway Migration Utility and is save to ignore.