static @Nullable ServerDuplexConnectionAcceptor findServer(String name) {
    Objects.requireNonNull(name, "name must not be null");

    return registry.get(name);
  }
static @ Nullable ServerDuplexConnectionAcceptor findServer ( String name ) { Objects . requireNonNull ( name , "name must not be null" ) ; return registry . get ( name ) ; }
Retrieves an instance of {@link ServerDuplexConnectionAcceptor} based on the name of its {@code
LocalServerTransport}. Returns {@code null} if that server is not registered.

@param name the name of the server to retrieve
@return the server if it has been registered, {@code null} otherwise
@throws NullPointerException if {@code name} is {@code null}