Break My Sudoku Checker

Your Task
Create a 9x9 2D array that is detected as a good table by my code, but is actually a bad table.

My Code

Code:

public class Board
{
        private int [][] boardBits;
        
        public Board(int [][] setup) {
                boardBits = setup;
        }
        
        public String checkBoard() {
                int sum = 0;
                if (noBadSpots()) {
                        for (int i = 0; i < 9; i++) {
                                for (int a = 0; a < 9; a++)
                                        sum += boardBits[i][a];
                                if (sum != 45)
                                        return "Invalid Table";
                                sum = 0;
                        }
                        sum = 0;
                        for (int i = 0; i < 9; i++) {
                                for (int a = 0; a < 9; a++)
                                        sum += boardBits[a][i];
                                if (sum != 45)
                                        return "Invalid Table";
                                sum = 0;
                        }
                        sum = 0;
                        for (int xbase = 0; xbase <= 6; xbase += 3) {
                                for (int ybase = 0; ybase <= 6; ybase += 3) {
                                        for (int i = xbase; i <= xbase + 2; i++) {
                                                for (int a = ybase; a <= ybase + 2; a++)
                                                        sum += boardBits[i][a];
                                        }
                                        if (sum != 45)
                                                return "Invalid Table";
                                        sum = 0;
                                }
                        }
                        return "Good Table";
                } else {
                        return "Invalid Table";
                }
        }
        
        private boolean noBadSpots()
        {
                for (int a = 0; a < 9; a++) {
                        if (boardBits[a][0] == boardBits[a][2])
                                return false;
                        for (int b = 0; b < 9; b++)
                                if (boardBits[a][b] < 1 || boardBits[a][b] > 9)
                                        return false;
                }
                return true;
        }
}

More readable code: http://pastebin.com/1UWNhdYs