The CometD project is a scalable web messaging bus that uses WebSocket and HTTP AJAX push technology patterns known as "Comet" techniques
'org.cometd.javascript:cometd-javascript-common:2.5.0-beta1'
<dependency>
<groupId>org.cometd.javascript</groupId>
<artifactId>cometd-javascript-common</artifactId>
<version>2.5.0-beta1</version>
</dependency>
<dependency org="org.cometd.javascript" name="cometd-javascript-common" rev="2.5.0-beta1"/>
"org.cometd.javascript", "cometd-javascript-common", "2.5.0-beta1"