Tomcat - Eclipse debugging

Debugging tomcat webapp with eclipse

The short answer is to add the following options when the JVM is started: -Xdebug -Xrunjdwp:transport=dt_socket,address=8000,server=y,suspend=n There are a number of ways you can do this depending on how you normally start Tomcat: * Set environment variables JPDA_ADDRESS=8000 and JPDA_TRANSPORT=dt_socket and then start tomcat using catalina jpda start. * If you run Tomcat using service wrapper, check the documentation for the service to determine how to set the required JVM options. * If you start Tomcat from within an IDE, check the documentation for the IDE to determine how to set the required JVM options.

The port does not need to be set to 8000, it may be any value appropriate for your system.

Whilst this is very useful in development it should not be used in production because of both security and performance implications.