When a non-static function is called a calling object is required (property handle for collection operations and selected property handle for instance operations), but no property handle has been passed or no instance has been selected in the property handle.

In order not to request a calling object, functions have to be defined as static. For calling a function with an unselected property handle, the function has to be defined as static or as collection function.

To identify the class and function that causes the Error set the environment variable OSI_NULLVALUE=exception