countMineNeighbors() не проходит

for (int i = startY; i<endY; i++)
...
for (int j = startX; j<endX; j++)

private void countMineNeighbors(){
        for (int i = 0; i<SIDE; i++){
            for (int j = 0; j<SIDE; j++){
                if(!gameField[j][i].isMine){
                    ArrayList<GameObject> list = getNeighbors(gameField[j][i]);
                    gameField[j][i].countMineNeighbors = 0;
                    for (GameObject go:list){
                        if(go.isMine){
                            gameField[j][i].countMineNeighbors++;
                        }
                    }

                }
            }
        }
    }

    private ArrayList<GameObject> getNeighbors(GameObject gameObject){
        ArrayList<GameObject> list = new ArrayList<GameObject>();
        int startX;
        int startY;
        int endX;
        int endY;
        if((gameObject.x - 1)>= 0){
            startX = gameObject.x - 1;
        }else{
            startX = 0;
        }
        if((gameObject.x + 1)< SIDE){
            endX = gameObject.x + 1;
        }else{
            endX = SIDE -1;
        }
        if((gameObject.y - 1)>= 0){
            startY = gameObject.y - 1;
        }else{
            startY = 0;
        }
        if((gameObject.y + 1)< SIDE){
            endY = gameObject.y + 1;
        }else{
            endY = SIDE -1;
        }
        for (int i = startX; i<=endX; i++){
            for (int j = startY; j<=endY; j++){
                if(i != gameObject.x && j != gameObject.y){
                    list.add(gameField[j][i]);
                }
            }
        }
        return list;

    }
}

if(i != gameObject.x && j != gameObject.y){
                 list.add(gameField[j][i]);
             }

import java.util.ArrayList;

public class NeighborsCounter {
    static GameObject[][] gameField = new GameObject[3][3];

    public static void main(String[] args) {
        //  создаем ячейки
        for (int i = 0; i < 3; i++) {
            for (int j = 0; j < 3; j++) {
                gameField[j][i] = new GameObject(i, j);
            }
        }
        ArrayList<GameObject> neighbors = getNeighbors(gameField[1][1]);
        for (GameObject neighbor : neighbors) {
            System.out.println(neighbor);
        }
    }

    private static ArrayList<GameObject> getNeighbors(GameObject gameObject) {
        ArrayList<GameObject> list = new ArrayList<GameObject>();
        int startX = gameObject.x - 1;
        int startY = gameObject.y - 1;
        int endX = gameObject.x + 1;
        int endY = gameObject.y + 1;
        for (int i = startY; i <= endY; i++) {
            for (int j = startX; j <= endX; j++) {
                if (i != gameObject.x && j != gameObject.y) {
                    list.add(gameField[i][j]);
                }
            }
        }
        return list;
    }

    public static class GameObject {
        int x, y;

        public GameObject(int x, int y) {
            this.x = x;
            this.y = y;
        }

        @Override
        public String toString() {
            return "GameObject{x=" + x + ", y=" + y + "}";
        }
    }
}

if (!(i == gameObject.x && j == gameObject.y)) {
                    list.add(gameField[i][j]);

                }