Apache Tomcat is the most widely adopted application and web server in production today. Where WildFly is full JEE stack, Tomcat is a simpler servlet container and web server. I’m getting the following error when I try to run a simple JSP program on Tomcat in Eclipse. Several ports (8005, 8080, 8009) required by Tomcat v6.0 Server at localhost are already in use. The following tutorial will teach every Ubuntu…