content: package com.alibaba.json.test;
  
  import com.alibaba.fastjson.JSON;
  import junit.framework.TestCase;
  import org.apache.commons.io.IOUtils;
  
  import java.io.IOException;
  import java.io.InputStream;
  import java.util.HashMap;
  import java.util.Map;
  import java.util.concurrent.Executors;
  import java.util.concurrent.ScheduledExecutorService;
  import java.util.concurrent.TimeUnit;
  
  public class Issue1488 extends TestCase {
      public void test_user() throws Exception {
          ExtClassLoader classLoader = new ExtClassLoader();
          final Class clazz = classLoader.loadClass("Issue1488_Server");
  
          final int THREAD_NUMBER = 10;
          ScheduledExecutorService threadPool = Executors.newScheduledThreadPool(THREAD_NUMBER);
          for (int i = 0; i < 10; ++i) {
              System.out.println("start....");
              threadPool.scheduleAtFixedRate(new Runnable() {
                  public void run() {
                      Map map = new HashMap();
                      map.put("run_id", "aeca30e");
                      map.put("port", 1002);
                      map.put("processId", 3001);
                      System.out.println(JSON.toJSONString(JSON.parseObject(JSON.toJSONString(map), clazz)));
                  }
              }, 1, 1, TimeUnit.SECONDS);
          }
  
          Thread.sleep(1000 * 1000);
  
  //
  //        Object obj = JSON.parseObject(json, clazz);
  //        assertEquals("{\"process_id\":301,\"run_id\":\"aeca30e\"}", JSON.toJSONString(obj));
      }
  
      public static class ExtClassLoader extends ClassLoader {
  
          public ExtClassLoader() throws IOException {
              super(Thread.currentThread().getContextClassLoader());
  
              {
                  byte[] bytes;
                  InputStream is = Thread.currentThread().getContextClassLoader().getResourceAsStream("kotlin/Issue1488_Server.clazz");
                  bytes = IOUtils.toByteArray(is);
                  is.close();
  
                  super.defineClass("Issue1488_Server", bytes, 0, bytes.length);
              }
          }
      }
  }
  