### Question:
DispatcherMaxAgeHeaderFilter extends AbstractDispatcherCacheHeaderFilter { @Override protected String getHeaderName() { return CACHE_CONTROL_NAME; }  String toString(); @Property(label = "Cache-Control Max Age",
            description = "Max age value (in seconds) to put in Cache Control header.")
    static final String PROP_MAX_AGE; }### Answer:
@Test public void testGetHeaderName() { assertEquals(DispatcherMaxAgeHeaderFilter.CACHE_CONTROL_NAME, filter.getHeaderName()); }