code: public ArrayList<I> getInvocations()
    {
      LruCache<Object,I> invocationCache = _invocationCache;
  
      ArrayList<I> invocationList = new ArrayList<>();
        
      synchronized (invocationCache) {
        Iterator<I> iter;
        iter = invocationCache.values();
  
        while (iter.hasNext()) {
          invocationList.add(iter.next());
        }
      }
  
      return invocationList;
    }
docs: Returns the invocations.