public class ConvBug {
    public static void main(String args[]) {
        boolean result = false;

        for (int i=0; i<15000; i++) {
            result |= test9(1, 2, 3, 4);
        }

        System.out.println("Result is: " + result);
    }

    public static boolean test9(int i1, int i2, int i3, int i4) {
        int res = 0;

        for (int j=0; j<100 ; j++) {
            switch (i1) {
                case 10:
                    {
                        for (int i=0; i>100; i++) {
                            res++;
                        }
                    }

                case 30:
                    {
                        for (int i=0; i<0; i++) {
                            res++;
                        }
                    }

                default:
                    res = i1 + i2 + i3 + i4;
            }
        }

        return res == 0;
    }
}