使用httpclient创建https连接?报错

   HttpClient httpClient = new DefaultHttpClient();

        X509TrustManager xtm = new X509TrustManager() {

            public void checkClientTrusted(X509Certificate[] chain,

                    String authType) throws CertificateException {

            }

            public void checkServerTrusted(X509Certificate[] chain,

                    String authType) throws CertificateException {

            }

            public X509Certificate[] getAcceptedIssuers() {

                return null;

            }

        };

        try {

            SSLContext ctx = SSLContext.getInstance("TLS");

            ctx.init(null, new TrustManager[] { xtm }, null);

            SSLSocketFactory socketFactory = new SSLSocketFactory(ctx);

            httpClient.getConnectionManager().getSchemeRegistry()

                    .register(new Scheme("https", 443, socketFactory)); 

使用httpclient 4.2.3 创建https连接  一下子可以  一下子又报错peer not authenticated