It's not a question but I'm sure it can help someone else because it has happened to almost everyone in my company too.
The context: I'm working with Eclipse on a Java GWT Maven project with the Eclipse Google Plugin.
Once, I updated my dependencies so I executed the command
mvn eclipse:clean eclipse:eclipse
to update my Eclipse project.
But then everytime I wanted to run my app, Eclipse cleaned the target directory (included the WEB-INF/lib folder).
To solve it:
- delete manually the .settings folder under your root project folder
- re-execute
mvn eclipse:clean eclipse:eclipse
- (optional - depend of your env) re-set properly Google settings (WAR directory, Entry Point Modules...)