https://javarevisited.blogspot.com/2014/04/how-to-fix-orghibernatemappingexception-unknown-entity-exception-java.html?showComment=1432380501213
How to fix org.hibernate.MappingException: Unknown entity Exception in Java? Solution
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how to fix
https://access.redhat.com/webassets/avalon/d/red_hat_jboss_enterprise_application_platform/7.3/javadocs/org/hibernate/MappingException.html
MappingException (Red Hat JBoss Enterprise Application Platform 7.3.0.GA public API)
red hat jboss