微信退款 api

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/*  * ====================================================================  * Licensed to the Apache Software Foundation (ASF) under one  * or more contributor license agreements.  See the NOTICE file  * distributed with this work for additional information  * regarding copyright ownership.  The ASF licenses this file  * to you under the Apache License, Version 2.0 (the  * "License"); you may not use this file except in compliance  * with the License.  You may obtain a copy of the License at  *  *   http://www.apache.org/licenses/LICENSE-2.0  *  * Unless required by applicable law or agreed to in writing,  * software distributed under the License is distributed on an  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY  * KIND, either express or implied.  See the License for the  * specific language governing permissions and limitations  * under the License.  * ====================================================================  *  * This software consists of voluntary contributions made by many  * individuals on behalf of the Apache Software Foundation.  For more  * information on the Apache Software Foundation, please see  * <http://www.apache.org/>.  *  */ package httpstest; import java.io.BufferedReader; import java.io.File; import java.io.FileInputStream; import java.io.InputStreamReader; import java.security.KeyStore; import javax.net.ssl.SSLContext; import org.apache.http.HttpEntity; import org.apache.http.client.methods.CloseableHttpResponse; import org.apache.http.client.methods.HttpGet; import org.apache.http.conn.ssl.SSLContexts; import org.apache.http.conn.ssl.SSLConnectionSocketFactory; import org.apache.http.impl.client.CloseableHttpClient; import org.apache.http.impl.client.HttpClients; import org.apache.http.util.EntityUtils; /**  * This example demonstrates how to create secure connections with a custom SSL  * context.  */ public class ClientCustomSSL {     public final static void main(String[] args) throws Exception {         KeyStore keyStore  = KeyStore.getInstance("PKCS12");         FileInputStream instream = new FileInputStream(new File("D:/10016225.p12"));         try {             keyStore.load(instream, "10016225".toCharArray());         } finally {             instream.close();         }         // Trust own CA and all self-signed certs         SSLContext sslcontext = SSLContexts.custom()                 .loadKeyMaterial(keyStore, "10016225".toCharArray())                 .build();         // Allow TLSv1 protocol only         SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(                 sslcontext,                 new String[] { "TLSv1" },                 null,                 SSLConnectionSocketFactory.BROWSER_COMPATIBLE_HOSTNAME_VERIFIER);         CloseableHttpClient httpclient = HttpClients.custom()                 .setSSLSocketFactory(sslsf)                 .build();         try {             HttpGet httpget = new HttpGet("https://api.mch.weixin.qq.com/secapi/pay/refund");             System.out.println("executing request" + httpget.getRequestLine());             CloseableHttpResponse response = httpclient.execute(httpget);             try {                 HttpEntity entity = response.getEntity();                 System.out.println("----------------------------------------");                 System.out.println(response.getStatusLine());                 if (entity != null) {                     System.out.println("Response content length: " + entity.getContentLength());                     BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(entity.getContent()));                     String text;                     while ((text = bufferedReader.readLine()) != null) {                         System.out.println(text);                     }                                     }                 EntityUtils.consume(entity);             } finally {                 response.close();             }         } finally {             httpclient.close();         }     } }这是微信的demo，当我运行到“CloseableHttpClient httpclient = HttpClients.custom().setSSLSocketFactory(sslsf).build();”这句时没有错误也没有提示就跳出了方法，没有继续向下执行，请问这个是什么原因？