Java automation, testing, and analysis

• US 6,754,889 B1
• Filed: 10/04/2000
• Issued: 06/22/2004
• Est. Priority Date: 10/04/2000
• Status: Expired due to Term

• Current Assignee: Micro Focus IP Ltd. (Open Text Corporation)
• Original Assignee: Compuware Corporation (KKR & Co., Inc.)
• Inventors: Leverenz, Neal T.
• Primary Examiner(s): DAS, CHAMELI
• Application Number:
  US09/684,681
• Time in Patent Office: 1,357 Days
• Field of Search: 717/108, 717/116, 717/118, 717/124, 717/139, 717/148, 717/166, 717/178, 717/127, 717/128, 717/130, 717/131, 717/147, 713/190, 713/200, 713/2, 713/193, 709/203
• US Class Current: 717/127
• CPC Class Codes: G06F 11/3612 by runtime analysis performance monitoring G06F11/3466
• CPC Class Codes: G06F 9/445 Program loading or initiating bootstrapping G06F9/4401; security arrangements for program loading or initiating G06F21/57

Abstract

A system and method are disclosed for enabling injection of non-native code into a JAVA environment. The method provides a software hook for detecting the loading of a JAVA interpreter, and then creates a connection that communicates with an executing JAVA application. A method is also provided that loads in a customized CLASSLOADER module, wherein the customized CLASSLOADER module identifies a location of non-native code, and then loads in the non-native code identified by the customized CLASSLOADER module.

Claims

1. A method of introducing non-native code into a platform-independent environment, comprising:

loading a customized CLASSLOADER module, wherein the customized CLASSLOADER module identifies a location of the non-native code;

loading the non-native code identified by the customized CLASSLOADER module to introduce the non-native code into the platform-independent environment; and

executing the non-native code to enable a program executing in an operating system to monitor performance in the platform-independent environment without modifying the platform-independent environment.

2. The method of claim 1 wherein the platform-independent environment maintains a default security manager, further comprising:

loading a custom security manager;

prior to loading the customized CLASSLOADER module, disabling the default security manager; and

after loading the customized CLASSLOADER module, setting a pointer that points to a memory location of the default security manager to point to a memory location of the custom security manager.

3. The method of claim 2, wherein disabling the default security manager comprises:

setting a pointer that points to a memory location of the default security manager to a null value.

4. The method of claim 2 further comprising, after setting the pointer, disabling functionality of the default security manager.

5. The method of claim 4 further comprising, after disabling functionality, redirecting control back to the default security manager.

6. The method of claim 1, wherein monitoring performance in a platform-independent environment comprises one element of a set containing debugging, analyzing a class, and providing an automation tool.

7. The method of claim 1 wherein the platform-independent environment comprises one of a set containing Java™

Runtime Environment from Sun Microsystems, Incorporated and Java™

Virtual Machine from Microsoft Corporation.

8. A method of introducing non-native code into a platform-independent environment, comprising:

responsive to determining that the platform-independent environment was created by a program that does not allow encrypted data to be loaded into a platform-independent environment, setting an internal CLASSPATH of that program to point to a customized CLASSLOADER module;

loading the customized CLASSLOADER module, wherein the customized CLASSLOADER module identifies a location of non-native code; and

loading the non-native code identified by the customized CLASSLOADER module.

9. The method of claim 8 wherein the platform-independent environment maintains a default security manager, further comprising;

loading a custom security manager;

prior to loading the customized CLASSLOADER module, disabling the default security manager; and

after loading the customized CLASSLOADER module, setting a pointer that points to a memory location of the default security manager to point to a memory location of the custom security manager.

10. The method of claim 8 wherein:

the customized CLASSLOADER module is not encrypted.

11. The method of claim 8, wherein that program is NETSCAPE NAVIGATOR.

12. The method of claim 8 wherein the platform-independent environment comprises one of a set containing Java™

Runtime Environment from Sun Microsystems, Incorporated and Java™

Virtual Machine from Microsoft Corporation.

13. A computer-readable medium for storing instructions for introducing non-native code into a platform-dependent environment, the instructions causing a processor to:

load a customized CLASSLOADER module, wherein the customized CLASSLOADER module identifies a location of the non-native code;

load the nonactive code identified by the customized CLASSLOADER module to introduce the non-native code into the platform-independent environment; and

executing the non-active code to enable a program executing in an operating system to monitor performance in the platform-independent environment without modifying the platform-independent environment.

14. The computer-readable medium of claim 13 wherein the platform-independent environment maintains a default security manager, and wherein the instructions further cause the processor to:

load a custom security manager;

disable the default security manager prior to causing the processor to load the customized CLASSLOADER module; and

set a pointer that points to a memory location of the default security manager to point to a memory location of the custom security manager after having caused the processor to load the customized CLASSLOADER module.

15. The computer-readable medium of claim 14, wherein the instructions for causing the processor to disable the default security manager cause the processor to:

set a pointer that points to a memory location of the default security manager to a null value.

16. The computer-readable medium of claim 13 wherein the platform-independent environment comprises one of a set containing Java™

Runtime Environment from Sun Microsystems, Incorporated and Java™

Virtual Machine from Microsoft Corporation.

17. A system for providing access to a platform-independent environment to a monitoring program, comprising;

a monitoring program module, resident in the operating system environment, for initiating an interpreter module responsive to determining that a calling program is accessing the platform-independent environment; and

an interpreter module, for loading, responsive to being initiated, a customized CLASSLOADER module, wherein the customized CLASSLOADER module identifies a location of non-native code to a calling program module and requires the calling program module to load the non-native code identified by the customized CLASSLOADER module

wherein the monitoring program does not modify the platform-independent environment.

18. The system of claim 17, wherein the interpreter loads the customized CLASSLOADER module by issuing a Define Class command.

19. The system of claim 17, wherein the interpreter analyzes the platform-independent environment to determine whether the platform-independent environment was created by a program that does not allow encrypted data to be loaded into a platform-independent environment.

20. The system of claim 17 further comprising a modified security manager module for enabling functionality to be performed by the monitoring program module that otherwise would be prohibited.

21. The system of claim 17 wherein the platform-independent environment comprises one of a set containing Java™

Runtime Environment from Sun Microsystems, Incorporated and Java™

Virtual Machine from Microsoft Corporation.