throw PlaceExistsExceptoin if place exists already.
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			@ -110,7 +110,11 @@ public class Tournament implements Serializable {
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     * @throws PlaceExistsException if the place already exists
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     */
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    public void addPlace(Place newPlace) throws PlaceExistsException {
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        places.removeIf(place -> place.equals(newPlace));
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        for(Place place : places){
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            if(place.getName().equals(newPlace.getName())){
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                throw new PlaceExistsException("Place with same name exists already.");
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            }
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        }
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        places.add(newPlace);
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    }
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