public static String[] split(String str, char separatorChar) {
        return splitWorker(str, separatorChar, false);
    }
@Test
    public void testSplit() {
        Assert.assertNull(EagleEyeCoreUtils.split(null, 'a'));

        Assert.assertArrayEquals(new String[0],
                EagleEyeCoreUtils.split("", ','));
        Assert.assertArrayEquals(new String[]{"foo", "bar", "baz"},
                EagleEyeCoreUtils.split("foo,bar,baz", ','));
    }