Tomcat 不能 graceful shutdown #535
Description
我的配置是 tomcat + spring boot mvc，从spring boot 的例子工程中修改出来的，sdk 的版本 2.9.6。部署到tomcat下运行，不能正常的shutdown，有很多线程不能shutdown，例如：
12-Apr-2018 20:24:51.951 WARNING [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [ROOT] appears to have started a thread named [pool-2-thread-9] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread: sun.misc.Unsafe.park(Native Method) java.util.concurrent.locks.LockSupport.park(LockSupport.java:175) java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039) java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442) java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074) java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134) java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) java.lang.Thread.run(Thread.java:748) 还有这类的：
12-Apr-2018 20:24:52.004 SEVERE [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks The web application [ROOT] created a ThreadLocal with key of type [java.lang.ThreadLocal] (value [java.lang.ThreadLocal@2926f399]) and a value of type [com.github.binarywang.wxpay.bean.WxPayApiData] (value [ 【请求地址】：https://api.mch.weixin.qq.com/pay/unifiedorder 【请求数据】：<xml> <appid>wxxxxxxx</appid> <mch_id>1xxx</mch_id> <nonce_str>1523530799119</nonce_str> <sign>3D1?????????????</sign> <body>abcddd</body> <out_trade_no>tx-341</out_trade_no> <total_fee>1</total_fee> <spbill_create_ip>172.31.233.29</spbill_create_ip> <time_start>20180412185959</time_start> <time_expire>20180412205959</time_expire> <notify_url>http://mp.x.moxxbi.com/pay/notify</notify_url> <trade_type>JSAPI</trade_type> <openid>oEKyxCRT93OmoI</openid> </xml> 【响应数据】：<xml><return_code><![CDATA[SUCCESS]]></return_code> <return_msg><![CDATA[OK]]></return_msg> <appid><![CDATA[wx????da0???]]></appid> <mch_id><![CDATA[14966786487324-002]]></mch_id> <nonce_str><![CDATA[EyuXgXeSJyDAeM4W]]></nonce_str> <sign><![CDATA[F1C2CF6??????618B4D56EE74495A4686]]></sign> <result_code><![CDATA[SUCCESS]]></result_code> <prepay_id><![CDATA[wx12x883721bd45d2797498456]]></prepay_id> <trade_type><![CDATA[JSAPI]]></trade_type> </xml>]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak. 我没看到在哪里设置graceful shutdown相关的配置，
请求帮助