BI_OBJECT~RELEASE Method
The system indicates that the reference to the instance is no longer needed by using the BI_OBJECT~RELEASE method. This means you can delete the reference from instance management. Once the last reference has been deleted from instance management, the GARBAGE COLLECTOR can release the corresponding memory area.
There is an implementation example in the CL_SWF_FORMABSENCdemo class.

If you do not need the method in your class, carry out a “dummy” implementation (without further coding) to avoid program errors when the system calls the method.