title: org.apache.coyote.AbstractProtocol$ConnectionHandler.process Error reading request, ignored
body: <p>Using Tomcat server 8.5.4 as a standalone service (tomcat8w.exe), I get the below error in 'logs/tomcat8-stderr.YYYY-MM-DD.txt' when I stop the server :</p>
  
  <pre><code>org.apache.coyote.AbstractProtocol$ConnectionHandler.process Error reading request, ignored
  java.lang.NullPointerException
  at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.getSslSupport(NioEndpoint.java:1349)
  at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:775)
  at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1425)
  at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
  at org.apache.tomcat.util.net.AbstractEndpoint.processSocket(AbstractEndpoint.java:830)
  at org.apache.tomcat.util.net.NioEndpoint$Poller.add(NioEndpoint.java:669)
  at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.registerReadInterest(NioEndpoint.java:1264)
  at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1433)
  at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
  at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
  at java.lang.Thread.run(Thread.java:745)
  </code></pre>
  
  <p>My connector is the following:</p>
  
  <pre><code>&lt;Connector SSLEnabled="true" clientAuth="false" keyAlias="xxx" keystoreFile="F:\Programs\apache-tomcat-8.5.4\certificate\xxx.keystore" keystorePass="xxx" maxThreads="150" port="443" protocol="org.apache.coyote.http11.Http11NioProtocol" sslImplementationName="org.apache.tomcat.util.net.jsse.JSSEImplementation" scheme="https" secure="true" sslEnabledProtocols="all" sslProtocol="SSL"/&gt;
  </code></pre>
  
  <p>Do you have any explanation on what might be wrong here ?</p>