This week's book giveaway is in the OO, Patterns, UML and Refactoring forum. We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line! See this thread for details.
Eclipse has a number of classpaths. There is the project classpath used to compile a project. There's also the runtime classpath for a standalone Java program and another runtime classpath if you are using an application server plugin. Do you know which classpath you are asking about.