docs: public boolean changeState(StateVertex nextState) {
  		if (nextState == null) {
  			LOGGER.info("nextState given is null");
  			return false;
  		}
  		LOGGER.debug("Trying to change to state: '{}' from: '{}'", nextState.getName(),
  				currentState.getName());
  
  		if (stateFlowGraph.canGoTo(currentState, nextState)) {
  
  			LOGGER.debug("Changed to state: '{}' from: '{}'", nextState.getName(),
  					currentState.getName());
  
  			setCurrentState(nextState);
  
  			return true;
  		} else {
  			LOGGER.info("Cannot go to state: '{}' from: '{}'", nextState.getName(),
  					currentState.getName());
  			return false;
  		}
  	}