@Test public void testNullValues() { HttpValuesMap httpValuesMap = new HttpValuesMap(); httpValuesMap.put("one", null); assertNull(httpValuesMap.get("one")); httpValuesMap.put("one", null); assertNull(httpValuesMap.get("one")); httpValuesMap.add("one", "1"); assertEquals("1", httpValuesMap.get("one")[0]); }