After tomcat 9.0.31 update we are getting below exception for POST request intermittently and below is the only exception we can see in log. Setup : HaProxy which listen on 443 and route traffic to backed tomcat running on https protocol. [ WARN][org.springframework.web.servlet.handler.AbstractHandlerExceptionResolver] Resolved [org.springframework.web.HttpRequestMethodNotSupportedException: Request method 'POST' not supported] Note: Same POST is working in old tomcat version till 9.0.30 without issue.
*** This bug has been marked as a duplicate of bug 64195 ***