The CometD project is a scalable HTTP-based event routing bus that uses the AJAX push technology pattern known as "Comet"
'org.cometd.javascript:cometd-javascript-common:2.1.0.beta2'
<dependency>
<groupId>org.cometd.javascript</groupId>
<artifactId>cometd-javascript-common</artifactId>
<version>2.1.0.beta2</version>
</dependency>
<dependency org="org.cometd.javascript" name="cometd-javascript-common" rev="2.1.0.beta2"/>
"org.cometd.javascript", "cometd-javascript-common", "2.1.0.beta2"