javax.net.ssl.SSLPeerUnverifiedException: Host name does not match the certificate subject provided by the peer

Question

I follow many links on stackoverflow and tried many solutions, but none of them worked for me. I'm using WSO2 API manager version 1.9.1. I am facing following error:

Exception in thread "main" javax.net.ssl.SSLPeerUnverifiedException: Host name 'XXXXXXXXX' does not match the certificate subject provided by the peer (CN=localhost, O=WSO2, L=Mountain View, ST=CA, C=US)
    at org.apache.http.conn.ssl.SSLConnectionSocketFactory.verifyHostname(SSLConnectionSocketFactory.java:465)
    at org.apache.http.conn.ssl.SSLConnectionSocketFactory.createLayeredSocket(SSLConnectionSocketFactory.java:395)
    at org.apache.http.conn.ssl.SSLConnectionSocketFactory.connectSocket(SSLConnectionSocketFactory.java:353)
    at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:134)
    at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:353)
    at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:380)
    at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:236)
    at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:184)
    at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:88)
    at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110)
    at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:184)
    at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82)
    at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:107)
    at com.java.pushNotifications.WSO2DemoClient.main(WSO2DemoClient.java:49)

I developed the following Java code. Please help me what's going wrong here. I need to connect insecure way and allow connections to SSL sites without certs.

public static void main(String[] args) throws ClientProtocolException, IOException, NoSuchAlgorithmException, KeyStoreException, KeyManagementException {
        SSLContextBuilder builder = new SSLContextBuilder();
        builder.loadTrustMaterial(null, new TrustSelfSignedStrategy());
        SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(builder.build());

        Registry<ConnectionSocketFactory> registry = RegistryBuilder.<ConnectionSocketFactory>create()
                .register("http", new PlainConnectionSocketFactory())
                .register("https", sslsf)
                .build();

        PoolingHttpClientConnectionManager cm = new PoolingHttpClientConnectionManager(registry);
        cm.setMaxTotal(2000);//max connection

    CloseableHttpClient httpclient = HttpClients.custom().setSSLSocketFactory(sslsf)
                .setConnectionManager(cm).build();

        HttpGet httpGet = new HttpGet("https://XXXXXXXXXX:8243/token");
        CloseableHttpResponse response = httpclient.execute(httpGet);

        String json =" {\"data\":\"grant_type=password&username=test&password=test123\"}";

        try {
            HttpPost httpost = new HttpPost(url);
            httpost.setHeader("Content-Type", "application/x-www-form-urlencoded");
            httpost.setHeader("Authorization", "Basic XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX");

            httpost.setEntity(new StringEntity(json));

            HttpResponse httpResponse = httpclient.execute(httpost);

            System.out.println(httpResponse.getStatusLine());
        }
        finally {
            response.close();
        }

        String responseString1 = new BasicResponseHandler().handleResponse(response);
        System.out.println("Response : "+responseString1);
    }

Answer 1

I have spent an hour trying to fix the same issue. This is what I come up with:

final SSLConnectionSocketFactory sslsf;
try {
    sslsf = new SSLConnectionSocketFactory(SSLContext.getDefault(),
            NoopHostnameVerifier.INSTANCE);
} catch (NoSuchAlgorithmException e) {
    throw new RuntimeException(e);
}

final Registry<ConnectionSocketFactory> registry = RegistryBuilder.<ConnectionSocketFactory>create()
        .register("http", new PlainConnectionSocketFactory())
        .register("https", sslsf)
        .build();

final PoolingHttpClientConnectionManager cm = new PoolingHttpClientConnectionManager(registry);
cm.setMaxTotal(100);
httpClient = HttpClients.custom()
        .setSSLSocketFactory(sslsf)
        .setConnectionManager(cm)
        .build();

Hopefully, it works and does not use any deprecated code (httpclient 4.4.1).