The following artifacts could not be resolved: net.sf.ehcache:ehcache-terracotta:jar:2.6.7

[hanasaki]

 The following artifacts could not be resolved: 
net.sf.ehcache:ehcache-terracotta:jar:2.6.7

Should it be the below dependency?  echache-terracotta only seems to 
exist at lower versions.
<dependency>
        <groupId>net.sf.ehcache</groupId>
        <artifactId>ehcache</artifactId>
        <version>2.6.7</version>
</dependency>