"foobarbaz", StringUtils.concatenate(ARRAY_LIST));
TEXT_LIST_NOSEP, StringUtils.concatenate(ARRAY_LIST));
    public void testJoin() {        assertEquals("concatenate(Object[]) failed",                      "foobarbaz", StringUtils.concatenate(ARRAY_LIST));        assertEquals("join(Object[], String) failed", TEXT_LIST,                     StringUtils.join(ARRAY_LIST, SEPARATOR));        assertEquals("join(Iterator, String) failed", TEXT_LIST,                     StringUtils.join(Arrays.asList(ARRAY_LIST).iterator(),                                      SEPARATOR));    }