code: public Set<DuplicationStorePolicy> getDuplicationStorePolicies(String spaceId) {
          if (!spaceId.startsWith("x-") && !spacesToIgnore.contains(spaceId)) {
              LinkedHashSet<DuplicationStorePolicy> policies = spaceDuplicationStorePolicies.get(spaceId);
              return policies != null && !policies.isEmpty() ? policies : defaultPolicies;
          }
          return EMPTY_SET;
      }
docs: Retrieve the duplication store policies associated with a space.   If no policies are set
  explicitly for that space, the method returns the default store policies.  An empty set is returned if any of
  the following conditions are true:
  1) the space starts with "x-"
  2) the space is not configured explicitly and there are no default store policies configured.
  3) the space is defined in spacesToIgnore
  
  @param spaceId
  @return