Redirector.java

import com.google.mockwebserver.Dispatcher;
import com.google.mockwebserver.MockResponse;
import com.google.mockwebserver.MockWebServer;
import com.google.mockwebserver.RecordedRequest;
import java.io.IOException;
import java.net.HttpURLConnection;

public class Redirector {
    public static void main(String[] args) throws IOException {
        MockWebServer server = new MockWebServer();
        server.setDispatcher(new Dispatcher() {
            @Override
            public MockResponse dispatch(RecordedRequest request) throws InterruptedException {
                try {
                    int i = Integer.parseInt(request.getPath().substring(1));
                    return new MockResponse()
                            .setResponseCode(HttpURLConnection.HTTP_MOVED_TEMP)
                            .setBody("Redirected " + i + " times")
                            .addHeader("Location: /" + (i + 1));
                } catch (NumberFormatException e) {
                    return new MockResponse()
                            .setBody("<a href=/0>click here</a>");
                }
            }
        });
        server.play();
        System.out.println(server.getUrl("/"));
    }
}