CacheServiceImpl.java

@Component
@Service
public class CacheServiceImpl implements CacheService {

@Activate
void onActivate() {
   URL url = getClass().getResource("/ehcache.xml");
   cacheManager = CacheManager.create(url);
   registerMBeans();
   cacheManager.clearAll();
}

@Deactivate
   void onDeactivate() {
       if (cacheManager != null) {
           cacheManager.shutdown();
           cacheManager = null;
       }
   }
}