The project and the author are both active no longer.
It is recommeded to use java.net.http.HttpClient with JDK11 or higher.
public static final HttpClient HTTP_CLIENT = HttpClient.newBuilder()
.cookieHandler(new CookieManager())
// If you are using JDK21 it is recommeded to use virtual thread.
.executor(Executors.newCachedThreadPool(Thread.ofVirtual().name("HttpClient-v", 1).factory()))
.build();