If a project was written with GWT, and UI has problem, we need to debug it.
Originally, I always run the application from local development environment, but sometimes, need some other environments.
So remote debug is a good choice, because all the data and environment is ready for reproduce the problem.
From eclipse, we can easily start remote debug, and don’t need to restart the tomcat service.
Add program arguments as below:
-remoteUI "${gwt_remote_ui_server_port}:${unique_id}" -startupUrl http://remotehost:port/index.html -logLevel INFO -noserver -codeServerPort 9997 -war \\remotehost\C$\Program Files\pathtowebapp entryportclass
原文：http://www.cnblogs.com/liwp_Stephen/p/3521329.html