FULL PRODUCT VERSION :
java version "1.6.0_07"
Java(TM) SE Runtime Environment (build 1.6.0_07-b06)
Java HotSpot(TM) Client VM (build 10.0-b23, mixed mode, sharing)

FULL OS VERSION :
Microsoft Windows XP [Version 5.1.2600]

A DESCRIPTION OF THE PROBLEM :
The JVM is unable to find a JNI DLL (or class files) when the folder name contains Unicode chars.

THE PROBLEM WAS REPRODUCIBLE WITH -Xint FLAG: Did not try

THE PROBLEM WAS REPRODUCIBLE WITH -server FLAG: Did not try

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
1) Download http://java.sun.com/docs/books/tutorial/getStarted/application/examples/HelloWorldApp.java and place into C:\TEST.

2) Open a DOS window and CD into C:\TEST and "javac HelloWorldApp"

3) "java HelloWorldApp" then produces "Hello World!" as expected

4) exit the DOS window and rename C:\TEST to C:\X, where "X" is Unicode character 37329 (decimal).

5) Open a DOS window and CD into the Unicode folder and "java HelloWorldApp", and it now FAILS with "Exception in thread "main" java.lang.NoClassDefFoundError: HelloWorldApp".

I can work around this problem (-D java.class.path with 8.3 folder names), but there is a related problem finding JNI DLL's that I can not work around.

Change "HelloWorldApp.java" to depend upon a JNI DLL, place it in the same folder, and verify that it works and can be found when the folder is c:\test.  Then, once again, rename c:\test to a folder name with Unicode chars and the JNI DLL is not found.  Using -D with java.library.path and a 8.3 name to the Unicode folder does.

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
class HelloWorldApp {
    public static void main(String[] args) {
        System.out.println("Hello World!"); // Display the string.
    }
}

---------- END SOURCE ----------