hi to all ! i exported my project as a .jar with a lib directory and i have to integrate into a web application.. this application calls the method of the main class "runJobInTOS(args)", and process many csv files. i have tried to use a msgBox component for testing errors; of course this is a swing mesage. instead i have to catch this error and give it to the web application and then show it to a user GUI(browser). can somebody gives me and idea how can i do this ? thank you Best Regards, JamesB