1.Https:
Feb 21, 2018 5:22:02 PM org.apache.coyote.AbstractProtocol init
SEVERE: Failed to initialize end point associated with ProtocolHandler ["http-nio-443"]
java.net.SocketException: Permission denied
at sun.nio.ch.Net.bind0(Native Method)
处理方案：check if other process is using 443 port .If not try changing connector port in server.xml .
try adding authbind=yes in /etc/default/tomcat[7/8]