State pattern: Identify state class type from string

Background

I have a command that uses the state pattern. When the command state changes I am notified in the UI that for example class stageOneState is now the active state. Is it bad practice to check the state class type using a string as an identifier? Is this undoing the work of the state pattern? What would be an alternative?

Example

if (notifiedState.type == "state1") {
// Update UI accroding to state1
} else ...

Example

Example from http://ift.tt/1BR8ZnZ

public interface State {
   public void doAction(Context context);
}

public class StartState implements State {

   public void doAction(Context context) {
      System.out.println("Player is in start state");
      context.setState(this);   
   }

   public String toString(){
      return "Start State";
   }
}

public class StopState implements State {

   public void doAction(Context context) {
      System.out.println("Player is in stop state");
      context.setState(this);   
   }

   public String toString(){
      return "Stop State";
   }
}

public class Context {
   private State state;

   public Context(){
      state = null;
   }

   public void setState(State state){
      this.state = state;       
   }

   public State getState(){
      return state;
   }
}

public class StatePatternDemo {
   public static void main(String[] args) {
      Context context = new Context();

      StartState startState = new StartState();
      startState.doAction(context);

      System.out.println(context.getState().toString());

      StopState stopState = new StopState();
      stopState.doAction(context);

      System.out.println(context.getState().toString());
   }
}