Breakpoints in my DRL files are not causing the Eclipse debugger to pause the running thread. My Macbook Pro (Lion) is configured with the following: - Eclipse Indigo - GEF - Drools plugins (Core, Guvnor, Task) from JBoss Tools - The Preferences | Drools | Installed Drools Runtime is configured with a single checked entry pointed to the binaries folder in a Drools 5.3.0 distribution. I can create a Drools project, which also generates a simple DroolsTest.java and Sample.drl file. I'm able to set breakpoints in the RHS of the rules. However, when I Debug the DroolsTest.java as a Drools Application the breakpoints never catch. Thank you for any recommendations. Dave