'org.wicketstuff:push-core:1.5-RC4.2'
<dependency>
<groupId>org.wicketstuff</groupId>
<artifactId>push-core</artifactId>
<version>1.5-RC4.2</version>
</dependency>
<dependency org="org.wicketstuff" name="push-core" rev="1.5-RC4.2"/>
"org.wicketstuff", "push-core", "1.5-RC4.2"