<dependency>
<groupId>org.atmosphere.extensions</groupId>
<artifactId>atmosphere-gwt20-managed</artifactId>
<version>2.3.1</version>
</dependency>
@Grapes(
@Grab(group='org.atmosphere.extensions', module='atmosphere-gwt20-managed', version='2.3.1')
)
<dependency org="org.atmosphere.extensions" name="atmosphere-gwt20-managed" rev="2.3.1" />