Error accessing product object method

Hello Ihave problem in a java object class that is “error accessing product object method” in my code

Set cDoc = s.DocumentContext

If Not cDoc Is Nothing Then

agID$ = cDoc.SuppID(0)

If Fulltrim(agID$) <> “” Then

Dim jS As JavaSession

Dim jC As JavaClass

Dim jO As JavaObject

Set jS = New JavaSession()

Set jC = jS.GetClass(“openBISConnection”)

Set jO = jC.CreateObject

My problem is not set java class for that my java object also not set so please help me if u know anythings about it.