docs: protected Map<CmsUUID, CmsContainerConfigurationGroup> load(Collection<CmsResource> resources) {
  
          Map<CmsUUID, CmsContainerConfigurationGroup> result = Maps.newHashMap();
          for (CmsResource resource : resources) {
              CmsContainerConfigurationGroup parsedGroup = null;
              try {
                  CmsFile file = m_cms.readFile(resource);
                  CmsContainerConfigurationParser parser = new CmsContainerConfigurationParser(m_cms);
                  parser.parse(file);
                  parsedGroup = new CmsContainerConfigurationGroup(parser.getParsedResults());
                  parsedGroup.setResource(resource);
              } catch (CmsVfsResourceNotFoundException e) {
                  LOG.debug(e.getLocalizedMessage(), e);
              } catch (Throwable e) {
                  LOG.error(e.getLocalizedMessage(), e);
              }
              // if the group couldn't be read or parsed for some reason, the map value is null
              result.put(resource.getStructureId(), parsedGroup);
          }
          return result;
      }