@Path("/api")
public class MyServer {

@GET
@Consumes(MediaType.APPLICATION_XML)
@Produces(MediaType.APPLICATION_XML)
@Path("/my-request")
public String myRequest(String type,
    @Context HttpServletRequest requestContext,
    @Context HttpServletResponse response) {
...
}

@Path("/api")
public class MyServer {

  private ScheduledExecutorService scheduler = ...;

  @GET
  @Consumes(MediaType.APPLICATION_XML)
  @Produces(MediaType.APPLICATION_XML)
  @Path("/my-request")
  public String myRequest(String type,
                          @Context HttpServletRequest requestContext,
                          @Context HttpServletResponse response,
                          @Suspended AsyncResponse asyncResponse) {
    scheduler.schedule(new Runnable() {
      @Override
      public void run() {
        asyncResponse.resume(...)
      }
    }, 5, TimeUnit.SECOND);
  }
}

@WebFilter(urlPatterns = "/*", asyncSupported = true)
@WebListener
public class HttpFilter implements Filter {

    @Override
   public void init(FilterConfig filterConfig) throws ServletException {   }

    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
        if(denyIP(servletRequest.getRemoteAddr())) {
            AsyncContext asyncContext = servletRequest.startAsync();
            asyncContext.setTimeout(100000);
        }else{
           filterChain.doFilter(servletRequest, servletResponse);
        }
    }

    @Override
    public void destroy() {   }

    private boolean denyIP(String address){
         //todo
         return true;
    }

}