question: private void initCachingHttpHeadersFilter ( ServletContext servletContext , EnumSet < DispatcherType > disps ) { log . debug ( "Registering Caching HTTP Headers Filter" ) ; FilterRegistration . Dynamic cachingHttpHeadersFilter = servletContext . addFilter ( "cachingHttpHeadersFilter" , new CachingHttpHeadersFilter ( jHipsterProperties ) ) ; cachingHttpHeadersFilter . addMappingForUrlPatterns ( disps , true , "/content/*" ) ; cachingHttpHeadersFilter . addMappingForUrlPatterns ( disps , true , "/app/*" ) ; cachingHttpHeadersFilter . setAsyncSupported ( true ) ; }
target:  Initializes the caching HTTP Headers Filter.