In activeweb 2.0, if there is a space in the tomcat installation directory, then there will be no packages, so can not found the correct Controller and action.
Because the space will be replaced with '%20' when we use the classLoader get current class's directory.
there is the code in org.javalite.activeweb.ControllerPackageLocator
source code
If you feel this is a defect in the framework, please file a new issue here: https://github.com/javalite/activeweb/issues
Having spaces in directory and files names will get you in trouble universally.