It is a minimalistic plugin which makes usage of maven
managed projects with Eclipse WebTools Platform just a
Binaries and source code are distributed under the MIT licence.
How it works?
For every maven resolved dependency it creates link in "src/main/webapp/WEB-INF/lib/", this results in double classpath entries in project but at last WTP can publish the application with all libraries so you can use 'run on server' option. It contributes a property page for every project so you can tune destination directory it for your needs.
Come for more information: http://adam.kruszewski.name/projects/libcopy/
Recommend the tutorial