We are evaluating IntelliJ IDEA as a possible replacement for Eclipse/NetBeans. So far everything is working to our liking except for one thing. Using Eclipse we would turn off the default Java Builder and create an Ant builder that would load and run an Ant task within the build.xml file that we developed. This way you could make your modifications and then run Build Project to build it from within Eclipse. The reason we did it this way is that we can now go to a command line and run the same Ant task and get the same results. I can't seem to find a way to turn off the built-in compiler and use Ant and the default task to build instead within IDEA. Am I missing something obvious?