Create the class MotorizedFireFighter

src/main/java/model/BoardFireFighterBehavior.java

@@ -47,9 +47,6 @@ public class BoardFireFighterBehavior implements BoardBehavior{
         }
     }
 
-    private Position randomPosition(int rowCount, int columnCount, Random randomGenerator) {
-        return new Position(randomGenerator.nextInt(rowCount), randomGenerator.nextInt(columnCount));
-    }
 
     public List<Position> updateFires() {
         List<Position> modifiedPositions = new ArrayList<>();

src/main/java/model/MotorizedFireFighter.java

+package model;
+
+public class MotorizedFireFighter {
+}