locale: zh_CN/zh_TW
bundle: j2sdk-1_5_0-beta-bin-b24-solaris-sparc-15_oct_2003.sh
paltform: Sparc 10/IA10/Windows 2003AS

Reporduce step:
1. open FileChooserDemo with java -jar FileChooserDemo.jar
2. Click on "Show FileChooser" button at the bottom of the application. "Open File" dialog box shall pop up.
3. Click on "Cancel" button at the bottom of the dialog box.
4. One message window popup. The sentence in this window not localized
Snapshot is attached