The Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path..... The Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path APR(Apache Portable Runtime)이라는 Apache와 Tomcat간의 연동간에 지원을 하는 아이라고하는데, 연동할 생각이 없다면 server.xml 에서 부분은 주석처리하면 된다. TOMCAT 2020.07.19