Method handle

src/main/java/fielded/webserver/Server.java:242–245

(Server server, WebSocket from, String address, Object payload)

                return h.handle(server, from, address, payload);
            }

            @Override
            public boolean will(Server server, WebSocket from, String address, Object payload) {
                return addressPredicate.test(address);
            }
        });
        return this;