@Chris Cranford Of course!

First, the "offline" testcase testcase.zip works like a charm as you wrote.

Second, when deploying the same classes on a Wildfly application server (envers-one-to-many-1.0-SNAPSHOT.jar), I get the aforementioned org.hibernate.MappingException. As the jar references

{{
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-envers</artifactId>
<version>5.2.2.Final</version>
<type>jar</type>
</dependency>
}}

I am not quite sure what this means.