docs: public Set<String> getBlockingLockedResources() {
  
          Set<String> blockingResources = new HashSet<String>();
          Iterator<String> i = getResourceList().iterator();
          while (i.hasNext()) {
              String resName = i.next();
              try {
                  blockingResources.addAll(getCms().getLockedResources(resName, getBlockingFilter()));
              } catch (CmsException e) {
                  // error reading a resource, should usually never happen
                  if (LOG.isErrorEnabled()) {
                      LOG.error(e.getLocalizedMessage(), e);
                  }
              }
              if (Boolean.valueOf(getParamIncluderelated()).booleanValue()) {
                  addLockedRelatedResources(resName, getBlockingFilter(), blockingResources);
              }
          }
          m_blockingLocks = blockingResources.size();
          return blockingResources;
      }