SAP NetWeaver AS ABAP Release 740, ©Copyright 2014 SAP AG. All rights reserved.
ABAP Keyword Documentation → ABAP Glossary →garbage collector
Deletes objects that are no longer referenced by heap references or field symbols and for which no method is registered as an event handler. The garbage collector is called periodically by the ABAP runtime environment. It tracks the reference variables of deleted objects. See also weak reference.