docs: private int getInitialPartitionCount() throws IllegalAccessException
      {
          AppointerState currentState = m_state.get();
          if (currentState != AppointerState.INIT && currentState != AppointerState.CLUSTER_START) {
              throw new IllegalAccessException("Getting cached partition count after cluster " +
                      "startup");
          }
          return m_initialPartitionCount;
      }