Tested on MacOS Monterey version 12.6 (21G115)

To reproduce set up a loopback alias:

sudo ifconfig lo0 alias 192.168.22.2

Now the server correctly responds to calls on:

curl 127.0.0.1:{port-number}

But calls to the loopback alias return an error:

curl 192.168.22.2:{port-number}

curl: (52) Empty reply from server

And the jetty server throws an exception:

java.io.IOException: Socket is not connected