Identifying references to objects during bytecode verification

Details Identifying references to objects during bytecode verification Identifying references to objects during bytecode verification

2006-06-20

2006-06-20

Dam, Tuan (Department: 2192)

Data processing: software development, installation, and managem

Software program development tool

Testing or debugging

C717S116000, C717S118000, C717S148000, C717S152000, C717S153000, C717S154000, C707S793000, C707S793000

Reexamination Certificate

active

07065747

ABSTRACT:
An enhanced Java Bytecode verifier suitable for operation in a Java computing environment is disclosed. The enhanced Java Bytecode verifier operates to determine whether one or more Java conventional Bytecode commands within a stream of Bytecodes are likely to place a reference to a Java object on the execution stack. In one embodiment, the conventional Java Bytecode commands identified as such are translated by the enhanced Java Bytecode verifier into one or more corresponding Java commands. When a corresponding command is executed, the reference associated with the conventional Java command is placed on a reference stack as well as the execution stack.

REFERENCES:
patent: 5682535 (1997-10-01), Knudsen
patent: 5787431 (1998-07-01), Shaughnessy
patent: 5900001 (1999-05-01), Wolczko et al.
patent: 5903899 (1999-05-01), Steele, Jr.
patent: 6021469 (2000-02-01), Tremblay et al.
patent: 6047125 (2000-04-01), Agesen et al.
patent: 6093216 (2000-07-01), Adl-Tabatabai et al.
patent: 6101580 (2000-08-01), Agesen et al.
patent: 6199075 (2001-03-01), Ungar et al.
patent: 6275227 (2001-08-01), DeStefano
patent: 6304949 (2001-10-01), Houlsdworth
patent: 6330709 (2001-12-01), Johnson et al.
patent: 6442751 (2002-08-01), Cocchi et al.
patent: 6735758 (2004-05-01), Berry et al.
patent: WO 9848354 (1998-10-01), None
patent: WO 9910811 (1999-03-01), None
patent: WO 9910811 (1999-03-01), None
Lindholm et al, “The Java™ Virtual Machine Specification”, (Sep., 1996), Sun Microsystems, Inc., Chapters 1-10 (173 pp.).
Agesen et al., Garbage Collection and Local Variable Type-Precision Liveness in Java™ Virtual Machines, Association for Computing Machinery, New York, vol. 33, No. 5, May 19, 1998, pp. 269-279.
Barabash et al., “Mostly Accurate Stack Scanning”, Proceedings of the Java/Sup Tm/ Virtual Machine Research and Technology Symposium, Monterey, California, Apr. 23 and 24, 2001, pp. 153-170.
Office Action of Dec. 23, 2003 for U.S. Appl. No. 09/851,663, filed May 8, 2001.

Affiliated with

Also associated with

Rating

Identifying references to objects during bytecode verification does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Identifying references to objects during bytecode verification, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Identifying references to objects during bytecode verification will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3689209