Malformed reply from SOCKS server when using OkHttpClient

I'm sending REST requests in Java using a feign client which works perfectly fine, however when additionally using an OkHttpClient I get an error message

Caused by: feign.RetryableException: Malformed reply from SOCKS server executing GET

I identified the line of code causing this error which is

OkHttpClient.Builder builder = new OkHttpClient.Builder();
...
builder.proxy(new Proxy(Proxy.Type.SOCKS, new InetSocketAddress(socksProxyHost, socksProxyPort)));

However since I both need the OkHttpClient and to send requests using the feign client I can't just remove this but instead have to find a workaround. Is there a way to reset the proxy settings for as long as I'm sending the requests via feign and set them back afterwards? I tried setting the default proxy server to null using

proxySelector.setDefault(null)

but that unfortunately didn't resolve my issue.

Thanks for your help!

Create two instances of OkHttpClient, one with the proxy configured and one with none.

builder.proxy(Proxy.NO_PROXY);

If you use OkHttpClient.newBuilder() to create one client from the other they'll share an ExecutorService and other resources.

I fixed the Problem by assigning a new ProxySelector instead of the actual proxy. When overriding the select method I made sure the proxy list is empty for requests sent using the feign client:

 ProxySelector proxySelector = new ProxySelector() {
            @Override
            public List<Proxy> select(URI uri) {
                if (uri.toString().contains("HOST_NAME")) {
                    return List.of();
                }
                return List.of(
                        new Proxy(Proxy.Type.SOCKS, new InetSocketAddress(socksProxyHost, socksProxyPort)));
            }

            @Override
            public void connectFailed(URI uri, SocketAddress sa, IOException ioe) {

            }
        };
        builder.proxySelector(proxySelector);