Spring mock is required for compilation

core/pom.xml

@@ -30,7 +30,7 @@
     <dependency>
       <groupId>org.springframework</groupId>
       <artifactId>spring-mock</artifactId>
-      <scope>test</scope>
+      <optional>true</optional>
     </dependency>
     <dependency>
       <groupId>ehcache</groupId>