Sun Position Calculations uses Maven 2.0 to build, run unit tests, and create the project web-site. Download Maven 2.0, and run mvn compile to build the library.
Before importing the Sun Position Calculations project into Eclipse, make sure that you have a successful Maven build. Maven will download all the dependencies needed to build Sun Position Calculations. You will need to define one Eclipse Java Classpath Variable, M2_REPO to point to the Maven 2.0 repository.