I'm developing a simple GWT application with eclipse. When I try to run it, it runs in development mode. How I can change its configuration and disable running in development mode?
I think you don't want to disable anything. Instead of running the application as a gwt application deploy the application in tomcat or some other servers. Then it will run as normal web application. Gwt application also a dynamic web project. Nothing extra in it.
From the question I am not able to identify whether you are using any build tool or not. Just incase if you are using maven build tool you have option to maven jetty plugin and execute the mvn jetty:run option.