It is important to note that mitigation is only required if an AJP port is accessible to untrusted users. Users wishing to take a defence-in-depth approach and block the vector that permits returning arbitrary files and execution as JSP may upgrade to Apache Tomcat 9.0.31, 8.5.51 or 7.0....
I think if you incorporated high hurdles into you first pulse raiser it would get your legs ready and working and not only improve cardio vascular but power at the same time. High Knees/Heel flicks: If these were in the first pulse raiser it would get your body ready‚ heart rate...