https://bz.apache.org/bugzilla/show_bug.cgi?id=61089

            Bug ID: 61089
           Summary: Http11NioProtocol doesn't work when using port 20443
           Product: Tomcat 8
           Version: 8.5.4
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Connectors
          Assignee: dev@tomcat.apache.org
          Reporter: hiram.espa...@gmail.com
  Target Milestone: ----

When using protocol Http11NioProtocol with port 20443 and a keystore PKCS12,
tomcat looks to be running at the beginning but after some seconds I can see
the processor working too hard, it keeps like that until I shut down tomcat.

If I wait more like that, I can see the next exception stacktrace being
repeated indefinitely in catalina.out:

12-May-2017 11:14:22.153 SEVERE [https-jsse-nio-20443-exec-27]
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)

It fixes if I change to port 8443 or if I change to use protocol
Http11Nio2Protocol

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