A publish-subscribe API local to a JVM that is based on class semantics and/or string (topic) matching.
'org.bushe:eventbus:1.3'
<dependency>
<groupId>org.bushe</groupId>
<artifactId>eventbus</artifactId>
<version>1.3</version>
</dependency>
<dependency org="org.bushe" name="eventbus" rev="1.3"/>
"org.bushe", "eventbus", "1.3"