Are you debugging your application as a Drools Application? Check out the documentation here: https://hudson.jboss.org/hudson/job/drools/lastSuccessfulBuild/artifact/t... If that is not working, could you create a new sample project with the default hello world drl and check whether your breakpoints are working in that simple example? Could you then also check the error log (if anything is reported to go wrong (Open View -> Error log)? What version of the Drools Eclipse plugin are you using? Kris Quoting balachandra maddina <chandu2708(a)gmail.com&gt;: Disclaimer: http://www.kuleuven.be/cwis/email_disclaimer.htm