[erlang-questions] terminate Cowboy

[Frans Schneider]

Hi list,

I have a problem with stopping Cowboy from a gen_server. I use trap exit.
This is the code.

terminate(_Reason, _State) ->
     error_logger:info_msg("Cowboy was here"),
     try
         Rv = cowboy:stop_listener(xmlrpc_http_listener),
         %Rv = 1 / 0,
         error_logger:info_msg("Cowboy terminate Rv ~p", [Rv])
     catch
         _:_ -> error_logger:info_msg("Cowboy CRASH")
     end,
     ok.

I get the message "Cowboy was here" and nothing else. When I replace the 
"cowboy:stop_listener" with the division by 0, the cowboy CRASH shows 
up. Maybe that's because the compiler already detected the error?

Could somebody explain this behaviour?

Thanks,

Frans