Https соединение не находит сертификат

static String USER_AGENT = "Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.112 Safari/537.36";
String url ="https://librakerch.ru/";
//String url ="https://librasimferopol.ru/"; 
URL obj = new URL(url);
HttpsURLConnection con = (HttpsURLConnection) obj.openConnection();
con.setRequestProperty("User-Agent", USER_AGENT);
con.setRequestProperty("Cookie", "full=1");
InputStream cgs = con.getInputStream();

import java.net.*;
 
URLConnection connect = new URL("https://google.com").openConnection();
BufferedReader reader = new BufferedReader( new InputStreamReader( connect.getInputStream() ) );
StringBuffer buffer = new StringBuffer();
String line;
while( ( line = reader.readLine() ) != null ) {
     buffer.append( line );
}

public static final String URL = "https://google.com";
 
    public static void main(String... args) throws IOException, NoSuchAlgorithmException {
        try (CloseableHttpClient httpClient = HttpClients.createDefault()) {
            String responseBody = httpClient.execute(new HttpGet(URL), getResponseHandler());
            System.out.println(responseBody);
        }
    }
 
    private static ResponseHandler<String> getResponseHandler() {
        return new ResponseHandler<String>() {
            @Override
            public String handleResponse(final HttpResponse response) throws ClientProtocolException, IOException {
                int status = response.getStatusLine().getStatusCode();
                if (status >= 200 && status < 300) {
                    HttpEntity entity = response.getEntity();
                    return entity != null ? EntityUtils.toString(entity) : null;
                } else {
                    throw new ClientProtocolException("Unexpected response status: " + status);
                }
            }
        };
    }

public class trust_all_ssl_httpclient_factory {
    public HttpClient createHttpClient_AcceptsUntrustedCerts() throws KeyStoreException, NoSuchAlgorithmException, KeyManagementException {
        HttpClientBuilder b = HttpClientBuilder.create();
 
        // setup a Trust Strategy that allows all certificates.
        //
        SSLContext sslContext = new SSLContextBuilder().loadTrustMaterial(null, new TrustStrategy() {
            public boolean isTrusted(X509Certificate[] arg0, String arg1) throws CertificateException {
                return true;
            }
        }).build();
        b.setSslcontext( sslContext);
 
        // don't check Hostnames, either.
        //      -- use SSLConnectionSocketFactory.getDefaultHostnameVerifier(), if you don't want to weaken
        HostnameVerifier hostnameVerifier = SSLConnectionSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER;
 
        // here's the special part:
        //      -- need to create an SSL Socket Factory, to use our weakened "trust strategy";
        //      -- and create a Registry, to register it.
        //
        SSLConnectionSocketFactory sslSocketFactory = new SSLConnectionSocketFactory(sslContext, hostnameVerifier);
        Registry<ConnectionSocketFactory> socketFactoryRegistry = RegistryBuilder.<ConnectionSocketFactory>create()
                .register("http", PlainConnectionSocketFactory.getSocketFactory())
                .register("https", sslSocketFactory)
                .build();
 
        // now, we create connection-manager using our Registry.
        //      -- allows multi-threaded use
        PoolingHttpClientConnectionManager connMgr = new PoolingHttpClientConnectionManager( socketFactoryRegistry);
        b.setConnectionManager( connMgr);
 
        // finally, build the HttpClient;
        //      -- done!
        HttpClient client = b.build();
        return client;
    }
}