I\'m currently writing a GWT application through Eclipse. Eclipse is used for development but I use the m2eclipse plugin and a Maven pom.xml with the GWT plugin to build &am
Why are you launching like this? Can't you just launch it by GWT plugin? Go to Run Configurations -> Web Application (the blue circle with "g" inside) and create new Run Configuration.
In it, in Main tab, enter (or select) your project, and enter com.google.gwt.dev.DevMode in Main class.
In Arguments enter -remoteUI "${gwt_remote_ui_server_port}:${unique_id}" -logLevel INFO -port 8888 -war path_to_your_dir_with_WEB-INF_directory com.package.your.Module