Product Version = Sun ONE Studio 5, Standard
Edition (Build 030402)
IDE Versioning  = IDE/1 spec=3.42.1 impl=030402
Operating System = SunOS version 5.8 running on
sparc
Java; VM; Vendor = 1.4.0_02; Java HotSpot(TM)
Client VM 1.4.0_02-b02; Sun Microsystems Inc.

New->Template->Jar Archives->Jar Recipe

1. push Browse button; the "Select Directory"
dialog opened
===============================================
 Tested Window title : Select Directory
===============================================

Results of Accessibility test
 No Accessible description :
Class: javax.swing.JButton {  Select Directory
|}   
Class: javax.swing.JDialog {  Select Directory|  } 

Components with no mnemonic :
Class: javax.swing.JButton {  Select Directory | 
} 

2. push the Load Manifest button on the last tab
 Tested Window title : Load Manifest
===============================================

Results of Accessibility test
No Accessible description :
   Class: javax.swing.JButton {  OK |  } 
   Class: javax.swing.JDialog {  Load Manifest | 
} 
Components with no mnemonic :
Class: javax.swing.JButton {  OK |  }

I don't know exactly, may be it is a bug in a
common class and you only use it. Assign, please, 
to correct component.