}
@Test
public void testSetLocaleToNullLocale() throws Exception {
MockHttpServletRequest request = new MockHttpServletRequest();
request.addPreferredLocale(Locale.TAIWAN);
request.getSession().setAttribute(SessionLocaleResolver.LOCALE_SESSION_ATTRIBUTE_NAME, Locale.GERMAN);
MockHttpServletResponse response = new MockHttpServletResponse();
SessionLocaleResolver resolver = new SessionLocaleResolver();
resolver.setLocale(request, response, null);