How to fix JSP compiler warning: one JAR was scanned for TLDs yet contained no TLDs?

Tomcat 8.5. Inside catalina.properties, located in the /conf directory set:

tomcat.util.scan.StandardJarScanFilter.jarsToSkip=\*.jar

Or go into context.xml, located in Tomcat’s /conf directory and add:

<JarScanner scanClassPath="false"/>