The Eclipse Lyo project is focused on providing an SDK to enable adoption of OSLC specifications. OSLC (Open Services for Lifecycle Collaboration) is an open community dedicated to reducing barriers for lifecycle tool integration. The community authors specifications for exposing lifecycle artifacts through uniform (REST) interfaces and relying on Internet and Linked Data standards.
You can find more resources for developing OSLC applications with Lyo, under the OSLC Developer Guide. You are welcome to post questions on the OSLC forum.
The OLSLC OP Reference implementation repository contains sample code that demonstrates how to build OSLC servers for various domains.