We have a working application running under tomcat 8.5.13 I have been trying to reduce start up time and reduce TLD scanning which was taking too long. By adding the jars in my .../WEB-INF/ lib to the NO scan line in the catalina.properties file I got this under control ( a couple minutes went down to 1 second or less). However two libraries I use and added NEEDED to be removed from the exclusion list as they caused (on MAC not on Linux where the application worked fine - 2nd weirdness) this problem: org.apache.jasper.JasperException: The absolute uri: http://java.sun.com/jsp/jstl/core cannot be resolved in either web.xml or the jar files deployed with this application The above problem caused a page to show as a white screen (it would not work).
i.e. THE JARS NEED TO BE SCANNED (at least by the MAC Tomcat) These jars were: jstl-api-1.2.jar and jstl-impl-1.2.jar Can anyone explain this? It makes no sense to me and I would feel better if there was a reason.
