SAP Web AS 6.20 and the Developer Studio 

For SAP Web AS 6.20, the SAP tool support consists of a set of Add-Ons for JBuilder (versions 5 and 6). SAP NetWeaver Developer Studio does not support J2EE development for SAP Web AS 6.20 for technical reasons described below. However, J2SE development is possible.

J2EE Version

SAP Web AS 6.20 supports the J2EE 1.2 standard. SAP NetWeaver Developer Studio – as well as SAP Web AS 6.40 – supports J2EE 1.3. J2EE 1.3 applications cannot be deployed and run in a J2EE 1.2 environment. Therefore, a J2EE application developed with SAP NetWeaver Developer Studio cannot be deployed to, and run on, a 6.20 J2EE Engine.

SAP-Specific J2EE Handling

The SAP-specific deployment descriptors, as well as the deployment itself, have changed incompatibly. SAP NetWeaver Developer Studio automatically generates and packs the new deployment descriptors and creates 6.30/6.40 compliant Software Delivery Archives (SDAs). The SDAs are not deployable to a 6.20 J2EE Engine and the integrated deployment only supports 6.30 and 6.40.

Project Structures

In contrast to JBuilder, SAP NetWeaver Developer Studio has a defined J2EE project structure separating clearly between, for example, EJB and Web projects.