Apache Tomcat has this error, "java.net.BindException: Address already in use"

This means that another program has already bind to those ports that Tomcat uses.

Your options are:

1. Change the ports of your Apache Tomcat by editing the ${TOMCAT_HOME}/conf/server.xml.
2. Shutting down the other program that has bind those ports.

To find and shutdown the other program do the following:

For windows:

1. Open a command line.
2. Then type "netstat -nao".
3. Look for those port numbers, and remember the PID number.
4. Open task manager.
5. Find the corresponding PID and end those task(s).

For Linux:

1. Open a command line.
2. Then type "netstat -nap".
3. Look for those port numbers, and remember the PID number.
4. In the command line type "kill -9 ${PID}" with the PID number.