Exception handling in java computing environments

Details Exception handling in java computing environments Exception handling in java computing environments

2006-02-21

2006-02-21

Bullock, Jr., Lewis A. (Department: 2195)

Electrical computers and digital processing systems: interprogra

Event handling or event notification

C718S001000, C714S100000, C714S048000

Reexamination Certificate

active

07003778

ABSTRACT:
Techniques for handling exceptions raised during the execution of Java computer programs are disclosed. The techniques can be used by a Java virtual machine to efficiently handle exceptions. A method descriptor is implemented in a Java method frame which is stored in the Java execution stack. The method descriptor provides one or more references to exception handlers associated with the Java method. The references can be used to quickly identify and invoke the appropriate exception handler. This can be achieved without having to use a native language execution stack. As a result, the overhead associated with several returns from native functions (routines or methods) can be avoided since the information needed to invoke the appropriate exception handler can be obtained efficiently from the Java execution stack. Accordingly, the performance of Java virtual machines, especially those operating with limited resources, can be significantly enhanced.

REFERENCES:
patent: 5455949 (1995-10-01), Conder et al.
patent: 5628016 (1997-05-01), Kukol
patent: 5761407 (1998-06-01), Benson et al.
patent: 5761513 (1998-06-01), Yellin et al.
patent: 6003038 (1999-12-01), Chen
patent: 6009517 (1999-12-01), Bak et al.
patent: 6131187 (2000-10-01), Chow et al.
patent: 6247169 (2001-06-01), DeLong
patent: 6293712 (2001-09-01), Coutant
patent: 6848111 (2005-01-01), Schwabe et al.
Venners, Bill. “Exceptions in Java”. Java World, Jul. 1998.
Waddington, Simon et al. “Java: Virtual Machine for Virtually Any Platform.” Embedded Systems Programming. Jun. 1996.
Cramer, Timothy et al. “Compiling Java Just in Time.” IEEE. 1997.
Jaworski, Jamie. “Java Developer's Guide.” Chapter 37, The Java Virtual Machine. Sams Publishing. 1996.
Golm, Michael et al. “A Retargetable JIT Compiler for Java.” Technical Report. Jan. 1999.
Aoki, Takashi et al. “On the Software Virtual Machine for the Real Hardware Stack Machine.” Proceedings of the Java Virtual Machine Research and Technology Symposium, Apr. 23-24, 2001.
Lee, Seungll et al. “Efficient Java Exception Handling in Just-in-Time Compilation.” ACM. 2000.
Lindholm et al., “The Java™ Virtual Machine Specification,” (Sep. 1996), Sun Microsystems, Inc., Chapters 1-10 (173 pp.).
Horstmann et al. “Core Java™ vol. II-Advanced Features,” Chapter 11, Native Methods, © 2000 Sun Microsystems, Inc. pp. 843-899.

Affiliated with

Also associated with

Rating

Exception handling in java computing environments does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Exception handling in java computing environments, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Exception handling in java computing environments will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3684257