Hibersap helps developers of Java applications to call business logic in SAP backends.
Hibersap project site
A simple standalone application showcasing Hibersap and its integration with Maven
A wrapper module for the SAP Java Connector (SAP JCo) version 3, used by the Hibersap project
Example Java EE application showing how to use Hibersap and the Cuckoo Resource Adapter for SAP in combination.