Useless Integer Check

public static boolean isInteger(double d) {
    if (d != d) {
        return false;
    }
    long bits = Double.doubleToRawLongBits(d);
    long exponent = ((bits >> 52) & 0x7FF)-1023;
    long fraction = bits & 0xFFFFFFFFFFFFFL;
    long l = 52-exponent;
    return (fraction & ~(fraction >> l << l)) == 0;
}