Try catch block does not seem to be functioning - still getting the "hard quit" and exception error message from class.

public class PezDispenser4 {
  //m = member variable
  private String mCharacterName;
  private int mPezCount;

  public static final int MAX_PEZ = 12;
  //caps means constant value
  //static means variable accesible anywhere
  //final mean value of variable cant me changed

  //constructor
  public PezDispenser4(String selectedName){
      mCharacterName = selectedName;
      mPezCount = MAX_PEZ;
  }

  public boolean dispense(){
      //set default value if there is nothing to dispense = false
      boolean wasDispensed = false;
      if(!isEmpty()){
          mPezCount--;
          wasDispensed = true;
      }  
      return wasDispensed;

    }

    //helper method to check to see if pez machine is empty
  public boolean isEmpty(){
      return mPezCount == 0;
      //is the pez count equal to 0? method returns a true/false
  }


  //method to load pez
  public void load(){
      load(MAX_PEZ);
      //use other method and load it with constant to give it max
  }


  //method for loading chosen number of pez
  public void load(int pezAmount){
      int newAmount = mPezCount + pezAmount;
      if (newAmount > MAX_PEZ){
         throw new IllegalArgumentException("Too many PEZ"); 
      }
      //so this is safe to raise the amount by what was added as
      //this will never happen if the amount loaded exceeds the max_pez
      mPezCount = newAmount;
  }


  //properties
    public String getCharacterName(){
      return mCharacterName;     
  }

}

public class Exceptions {

    public static void main(String[] args){
        // Your amazing code goes here...
        System.out.println("We are a making a new Pez Dispenser.");
        PezDispenser4 dispenser = new PezDispenser4("yoda");
        System.out.printf("The dispenser character is %s\n",
                          dispenser.getCharacterName());

        //true                  
        if(dispenser.isEmpty()){
            System.out.println("The pez machine is empty");
        }
        //call load method to load more pezes
        System.out.println("Loading more pezes...");
        dispenser.load();
        //check to see if not empty (! means not)
         if(!dispenser.isEmpty()){
            System.out.println("Now fully loaded");
        }

        while(dispenser.dispense()){
            System.out.println("Chomp!");
        }
        if (dispenser.isEmpty()){
            System.out.println("You ate all the Pez");
        }

        dispenser.load(4);
        dispenser.load(2);
        while(dispenser.dispense()){
            System.out.println("Chomp!");
        }

        //dispenser.load(400);
        //System.out.println("this will never happen!");
        //try and catch block
        try{
           dispenser.load(400);
           System.out.println("this will never happen!");
        }catch (IllegalArgumentException iae){
            System.out.println("Whoa there!");
            System.out.printf("There was a %s", iae.getMessage());
        }

    }
}