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:
Sep. 22, 2015
Filed:
Nov. 02, 2011
Michael Rasmussen, Odense, DK;
Allan Raundahl Gregersen, Odense, DK;
BO Norregaard Jorgensen, Odense, DK;
Michael Rasmussen, Odense, DK;
Allan Raundahl Gregersen, Odense, DK;
Bo Norregaard Jorgensen, Odense, DK;
Syddansk Universitet, Odense M, DK;
Abstract
A method for dynamically transforming bytecode of Java Virtual Machine (JVM) bootstrap classes during program startup uses a JVM agent to intercept startup of a JVM compliant computer program to transform the bytecode of already loaded JVM bootstrap classes and store the resulting set of modified bootstrap classes. Subsequently, the JVM Agent intercepts all class loading events to transform the bytecode of classes declaring special program startup method '<clinit>', by inserting bytecode at the beginning of the method to invoke a callback method declared within the JVM Agent and passing the arguments passed to the JVM upon program startup as callback method parameters. Subsequently, when the callback method intercepts the execution flow of the computer program, the callback method starts a second JVM instance, passing parameters including the obtained input parameters, the main method arguments, and a JVM input argument for accessing the stored set of modified bootstrap classes.