A new version of the self-signed HTTPS site access tool class based on HttpClient

Self-signed certificates are a common security configuration in development and testing environments that allow developers to communicate with their own sites using the HTTPS protocol without having to purchase and configure a publicly trusted certificate. This article introduces a tool class based on HttpClient for accessing self-signed HTTPS sites for secure communication during development and testing.

First, we need to load the self-signed certificate using Java's KeyStore class. Here is an example method that loads a keystore from a given certificate file:

import java.io.FileInputStream;
import java.security.KeyStore;

public class SSLUtil</