code: protected Set<String> getReferencingStrongLinks(CmsObject cms, CmsResource resource) throws CmsException {
  
          Set<String> references = new HashSet<String>();
          if (m_jspLoader == null) {
              return references;
          }
          m_jspLoader.getReferencingStrongLinks(cms, resource, references);
          return references;
      }
docs: Returns a set of root paths of files that are including the given resource using the 'link.strong' macro.<p>
  
  @param cms the current cms context
  @param resource the resource to check
  
  @return the set of referencing paths
  
  @throws CmsException if something goes wrong