diff --git a/OGP1718-Worms/src/worms/model/GameObject.java b/OGP1718-Worms/src/worms/model/GameObject.java
index 6bb6709..9729bd7 100644
--- a/OGP1718-Worms/src/worms/model/GameObject.java
+++ b/OGP1718-Worms/src/worms/model/GameObject.java
@@ -170,7 +170,7 @@ public abstract class GameObject {
      * @post ...
      *       |new.getLocation() == Coordinate.create(location)
      */
-    protected void setLocation(double[] location) throws IllegalArgumentException {
+    protected void setLocation(double[] location) {
 
         setLocation(Coordinate.create(location));
     }
diff --git a/OGP1718-Worms/src/worms/model/World.java b/OGP1718-Worms/src/worms/model/World.java
index 5602eeb..382b114 100644
--- a/OGP1718-Worms/src/worms/model/World.java
+++ b/OGP1718-Worms/src/worms/model/World.java
@@ -489,7 +489,7 @@ public class World {
      * 
      * @throws NullPointerException
      */
-    public boolean hasAsGameObject(GameObject obj) throws NullPointerException {
+    public boolean hasAsGameObject(GameObject obj) {
         return getGameObjects().contains(obj);
     }
 
diff --git a/OGP1718-Worms/src/worms/util/Coordinate.java b/OGP1718-Worms/src/worms/util/Coordinate.java
index 5e821f6..fd3e49c 100644
--- a/OGP1718-Worms/src/worms/util/Coordinate.java
+++ b/OGP1718-Worms/src/worms/util/Coordinate.java
@@ -25,7 +25,7 @@ public class Coordinate extends Tuple<Double, Double> {
      * @throws IllegalArgumentException ...
      *                                  |
      */
-    public Coordinate(double coordinateX, double coordinateY) throws IllegalArgumentException {
+    public Coordinate(double coordinateX, double coordinateY) {
         super(coordinateX, coordinateY);
     }