DBZ provides a simple interface to store/retrive key/value pairs on BerkeleyDB JE or MySQL
'com.pteyer:dbz:0.0.4'
<dependency>
<groupId>com.pteyer</groupId>
<artifactId>dbz</artifactId>
<version>0.0.4</version>
</dependency>
<dependency org="com.pteyer" name="dbz" rev="0.0.4"/>
"com.pteyer", "dbz", "0.0.4"