Developing Tomcat application on Eclipse IDE, and if you are facing the problem that RuntimeException keep poping out and you can't get rid of it without stopping the server. Based on
stackoverflow's answer, it can be easily solved by uncheck the option in Preferences.
Solution
Uncheck
suspend execution on uncaught exceptions options in Preferences. Go to Window > Preferences > Java > Debug and uncheck Suspend execution on uncaught exceptions.