The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 24, 2026
Filed:
Jan. 15, 2025
Oracle International Corporation, Redwood Shores, CA (US);
Erik Österlund, Vasterhaninge, SE;
Axel Boldt-Christmas, Stockholm, SE;
Stefan Mats Rikard Karlsson, Nacka, SE;
Oracle International Corporation, Redwood Shores, CA (US);
Abstract
Techniques are disclosed for performing a garbage collection process that processes reference objects in multiple generations of a memory area while a program instance is concurrently manipulating runtime objects in the memory area. During one phase of concurrent operations, the system applies one rule set for processing reference objects in one generation of the memory area. During another phase of concurrent operations, the system applies another rule set for processing reference objects residing in another generation of the memory area. To enable the performance of the one phase of concurrent operations and the other phase of concurrent operations at the same time, the system tracks the accessibility of a given runtime object with respect to both of the one generation and the other generation. The system tracks the given runtime object's accessibility with respect to both generations by embedding metadata into a pointer that refers to the given runtime object.