When you start the process execution engine within Studio, the engine automatically loads all of the BPEL processes within the project. For each BPEL process, the engine exposes the Web Service interface.
At runtime, the engine compiles the BPEL process. However, if there are any compilation errors, the engine continues to start. You must check for any validation errors within the BPEL editor before starting the engine.
After starting the Process Execution Engine in Studio, you can view you BPEL processes by accessing the following URL: http://localhost:9000.
This page displays all of projects currently deployed on the engine. When accessing the Process Execution Engine within Studio, only the processes in the current project are displayed. Clicking on the project on this page displays a list of all the deployed Web Services, including those of your BPEL processes.