Arbitrary number of path params in a reverse proxy

[NotLucxs]

I'm experimenting with building a reverse proxy, following the guide here: https://quarkus.io/guides/rest-client
The problem I'm having is I want to allow an arbitrary number of path parameters. For example:

• API at localhost:8080/hello/world
• Reverse Proxy at localhost:8081/proxy
• curl http://localhost:8081/proxy/hello/world -> forwarded to localhost:8080/hello/world

I have tried the following:

@Path("/proxy")
public class ProxyResource {

    @RestClient
    ProxyService proxyService;

    @GET
    @Path("{path: .+}")
    public Response proxyRequest(@PathParam("path") String path) {
        return proxyService.forwardRequest(path);
    }
}

@Path("/")
@RegisterRestClient(configKey="proxy-api")
public interface ProxyService {

    @GET
    @Path("{path: .+}")
    Response forwardRequest(@PathParam("path") String path);
}

Config:
quarkus.rest-client.proxy-api.url=http://localhost:8080
quarkus.rest-client.proxy-api.scope=jakarta.inject.Singleton

The problem that arises:

Outgoing request: GET http://localhost:8080/hello%2Fworld

As you can see the /hello/world is encoded to /hello%2Fworld rightly so, but I want to avoid this behavior and forward the full path onwards.
You may be thinking this seems like a weird and probably bad idea, but the end goal is allowing an arbitrary path such that I could hit APIs provided by other users e.g localhost:8081/proxy/one/two/three/four/five.

I have also tried pulling out the path via @Context UriInfo uriInfo and manually building the path back up, but that just results in more %2F