How to stop a httpSerevr ? DisposableServer.dispose[Now] doesn't work

[c5ms]

I need start a HttpServer and control this server instance stop .
but I can not stop the server

DisposableServer server=   HttpServer.create()
                .host("localhost")
                .port(port)
                .handle(this::handle)
                .bindNow();
        // server started 
        // curl ... has responsed
        server.disposeNow();
        // curl ... has responsed too ```

How can I stop the serve ? 
please 

[violetagg]

Check this issue and the workaround there #495 (comment)