Which RFC can read the Workflow Inbox about JCo

Hello,

I search the correct RFC to read the Workflow Inbox. I would like to develop a JAVA Class to connect the Inbox and then to show the workitems on a web screen. I use the SAP JCo to connect the SAP System. But until now, i don't found the correct RFC to connect the Workflow Inbox in the Workplace.

Can anybody help me or know anybody the correct RFC?