jMBus is a library that can be used to implement an M-Bus master that reads meters.
'org.openmuc:jmbus:1.3'
<dependency>
<groupId>org.openmuc</groupId>
<artifactId>jmbus</artifactId>
<version>1.3</version>
</dependency>
<dependency org="org.openmuc" name="jmbus" rev="1.3"/>
"org.openmuc", "jmbus", "1.3"