This is a pom artifact to pull in ehcache-core and ehcache-terracotta for clustering. Make sure to set 'type' to 'pom' in your dependency.
'net.sf.ehcache:ehcache:2.2.0'
<dependency> <groupId>net.sf.ehcache</groupId> <artifactId>ehcache</artifactId> <version>2.2.0</version> </dependency>
<dependency org="net.sf.ehcache" name="ehcache" rev="2.2.0"/>
"net.sf.ehcache", "ehcache", "2.2.0"