Prevayler is the open source Java prevalence layer.
'org.prevayler:prevayler:2.5'
<dependency>
<groupId>org.prevayler</groupId>
<artifactId>prevayler</artifactId>
<version>2.5</version>
</dependency>
<dependency org="org.prevayler" name="prevayler" rev="2.5"/>
"org.prevayler", "prevayler", "2.5"