code: public void hookConnectRequestProxyListeners(Proxy proxy) {
          for (ExtensionHook hook : extensionHooks.values()) {
              hookConnectRequestProxyListeners(proxy, hook.getConnectRequestProxyListeners());
          }
      }
docs: Hooks (adds) the {@code ConnectRequestProxyListener}s of the loaded extensions to the given {@code proxy}.
  <p>
  <strong>Note:</strong> even if public this method is expected to be called only by core classes (for example,
  {@code Control}).
  
  @param proxy the local proxy
  @since 2.5.0