final HttpServletRequestImpl requestImpl = ServletRequestContext.requireCurrent().getOriginalRequest();
final HttpServerExchange exchange = requestImpl.getExchange();
if(!exchange.isRequestChannelAvailable()) {
throw UndertowServletMessages.MESSAGES.responseAlreadyCommited();
}
exchange.dispatch(SameThreadExecutor.INSTANCE, new Runnable() {
@Override
public void run() {
String path = pathAddition;
if(!exchange.getRelativePath().endsWith("/")) {
path = "/" + path;