Kill Bill Clock classes and interfaces for killbill and killbill-commons

'org.kill-bill.commons:killbill-clock:0.2.21'

<dependency>
	<groupId>org.kill-bill.commons</groupId>
	<artifactId>killbill-clock</artifactId>
	<version>0.2.21</version>
</dependency>

<dependency org="org.kill-bill.commons" name="killbill-clock" rev="0.2.21"/>

"org.kill-bill.commons", "killbill-clock", "0.2.21"