System and method for class loader constraint checking
US6851111B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2000 |
| Grant date | Feb 1, 2005 |
| Priority date | — |
| Expiry date | Jun 28, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/44521
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A computer system includes multiple class loaders for loading program class files into the system. A constraint checking mechanism is provided wherein a first class file loaded by a first class loader makes a symbolic reference to a second class file loaded by a second class loader, the symbolic reference including a descriptor of a third class file. The constraint mechanism requires that the first and second class files agree on the identity of the third class file and stores a list of constraints as a set of asymmetric relationships between class loaders. Each stored constraint, for a class loader which loaded a class file that contains a symbolic reference to another class file, includes a first parameter denoting the class loader which loaded the class file to which the symbolic references is made; and a second parameter denoting a class file which is identified by a descriptor in said symbolic reference.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.