【Tomcat】At least one JAR was scanned for TLDs yet contained no TLDs
Tomcatサーバ起動時にエラー
At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
tomcat/conf/catalina.properties
ファイルに以下を追記して解決
tomcat.util.scan.StandardJarScanFilter.jarsToSkip=\*.jar
参考リンク: stackoverflow.com
2020/4/18更新
上記設定をすると、おそらくtomcatがjarファイルを読んでくれなくてdeployできなくなったのでダメでした。 なので未解決・・・。