FULL PRODUCT VERSION :
1.7.0_71-b14 Java HotSpot(TM) Client VM

ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows [Version 6.1.7601]

A DESCRIPTION OF THE PROBLEM :
When Windows logon account name is Japanese, home directry is Japanese also. 
And when this user start application from Java Web Start, CouldNotLoadArgumentException occures and cannot start. 
Do not fixed in bug ID 8058858 ?

REGRESSION.  Last worked in version 7u60

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Steps to Reproduce: 
1. Create logon account in Japanese. 
2. Logon with the account created in step 1. 
3. Input URL into browser and start with jacaws. 
 http://docs.oracle.com/javase/tutorialJWS/samples/deployment/dynamictree_webstartJWSProject/dynamictree_webstart.jnlp 

4. Error occures. 
CouldNotLoadArgumentException[ Could not load file/URL specified: C:\Users\��������������\AppData\Local\Temp\javaws18] 
    at com.sun.javaws.Main.launchApp(Unknown Source) 
    at com.sun.javaws.Main.continueInSecureThread(Unknown Source) 
    at com.sun.javaws.Main.access$000(Unknown Source) 
    at com.sun.javaws.Main$1.run(Unknown Source) 
    at java.lang.Thread.run(Unknown Source) 

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Application us loaded correctly and start.
ACTUAL -
CouldNotLoadArgumentException occures and cannot start. 

ERROR MESSAGES/STACK TRACES THAT OCCUR :
CouldNotLoadArgumentException[ Could not load file/URL specified: C:\Users\��������������\AppData\Local\Temp\javaws18] 
at com.sun.javaws.Main.launchApp(Unknown Source) 
at com.sun.javaws.Main.continueInSecureThread(Unknown Source) 
at com.sun.javaws.Main.access$000(Unknown Source) 
at com.sun.javaws.Main$1.run(Unknown Source) 
at java.lang.Thread.run(Unknown Source) 


REPRODUCIBILITY :
This bug can be reproduced always.