'com.sun.jini:checkser:2.1-beta2'
<dependency>
<groupId>com.sun.jini</groupId>
<artifactId>checkser</artifactId>
<version>2.1-beta2</version>
</dependency>
<dependency org="com.sun.jini" name="checkser" rev="2.1-beta2"/>
"com.sun.jini", "checkser", "2.1-beta2"