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:
Nov. 15, 2011
Filed:
Jul. 27, 2007
Steven J. Branda, Rochester, MN (US);
John J. Stecher, Rochester, MN (US);
Steven J. Branda, Rochester, MN (US);
John J. Stecher, Rochester, MN (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A system for class verification includes a data storage device holding verification caches; and a host system in communication with the data storage device, the host system executing a virtual machine (VM), including a class verifier. The VM is configured to perform: initiating loading of a class; searching for the class in the verification caches, wherein a record from the verification caches, including a checksum, is returned upon locating the class; comparing the checksum in the record to a checksum of the class being loaded; completing the loading of the class when the checksums match; performing bytecode verification of the class upon one of: a checksum comparison mismatch, and a failure to locate the class in the verification caches; calculating new checksum of the class upon a successful bytecode verification; and storing the new checksum in the verification caches.