Description of problem: Using the Project Preferences to change the configuration settings causes a NPE to occur in AutotoolsMakeBuilder.hasTargetBuilder(). The problem does not occur when the Apply button is hit, but when the Ok button is. Version-Release number of selected component (if applicable): eclipse-cdt-5.0.0-5 How reproducible: Open Project->Properties->C/C++ Build->Settings->Tools Settings Alter the configure parameters and hit Apply Then hit Ok button. An NPE will appear in the log