docs: public ArrayList filterExternalCacheFragmentList(String cacheName, ArrayList incomingList) {
  		InvalidationTableList invalidationTableList = getInvalidationTableList(cacheName);
  		try {
  			invalidationTableList.readWriteLock.readLock().lock();
  			Iterator it = incomingList.iterator();
  			while (it.hasNext()) {
  				ExternalInvalidation externalCacheFragment = (ExternalInvalidation) it.next();
  
  				if (null == internalFilterExternalCacheFragment(cacheName, invalidationTableList, externalCacheFragment)) {
  					if (tc.isDebugEnabled()) {
  						Tr.debug(tc, "filterExternalCacheFragmentList(): Filtered OUT cacheName=" + cacheName + " uri=" + externalCacheFragment.getUri());
  					}
  					it.remove();
  				}
  			}
  			return incomingList;
  
  		} finally {
  			invalidationTableList.readWriteLock.readLock().unlock();
  		}
  	}