assertEquals(-1, ArrayUtils.indexOf(array, (double) 0, 2)); array = new double[0];
    public void testIndexOfDoubleWithStartIndex() {        double[] array = null;        assertEquals(-1, ArrayUtils.indexOf(array, (double) 0, 2));        array = new double[] { 0, 1, 2, 3, 0 };        assertEquals(4, ArrayUtils.indexOf(array, (double) 0, 2));        assertEquals(-1, ArrayUtils.indexOf(array, (double) 1, 2));        assertEquals(2, ArrayUtils.indexOf(array, (double) 2, 2));        assertEquals(3, ArrayUtils.indexOf(array, (double) 3, 2));        assertEquals(-1, ArrayUtils.indexOf(array, (double) 99, 0));        assertEquals(-1, ArrayUtils.indexOf(array, (double) 0, 6));    }