### Question:
HttpHeaderDateFormat extends SimpleDateFormat { public static HttpHeaderDateFormat get() { return FORMAT_THREAD_LOCAL.get(); } private  HttpHeaderDateFormat(); static HttpHeaderDateFormat get(); @Override Date parse(String text, ParsePosition pos);  }### Answer:
@Test public void testFormat() { HttpHeaderDateFormat format = HttpHeaderDateFormat.get(); final String formatted = format.format(DATE); Assert.assertNotNull(formatted); Assert.assertEquals("Sun, 06 Nov 1994 08:49:37 GMT", formatted); }