Starting execution of a mobile application on a mobile device causes the mobile application to invoke an initialization method that i) creates a substitute application class loader, and ii) replaces a default application class loader for the mobile application with the substitute application class loader. The substitute application class loader processes a request for a requested object class defined by the mobile application by returning, instead of the requested object class, an alternate object class that is different from the requested object class and that is defined by mobile application management logic also executing on the mobile device. Continued execution of the mobile application on the mobile device includes performing at least one mobile application management action using the alternate object class returned by the substitute application class loader.