EXECUTE: Create Seam 1.2 WAR Web project (or 2.0.2 Seam). Name it "seam"
EXECUTE: In Package Explorer select this project, right click - select Refactor > Rename
EXECUTE: Enter new project name("seam123"). Press Finish.
FAILURE: In package explorer test part of seam project has error mark on it.
From problems view:

Project 'seam-test' is missing required library: '\seam\WebContent' seam-test Build path Build Path

The project cannot be built until build path errors are resolved seam-test Unknown Java Problem