Seen with Product Version: NetBeans IDE Dev (Build 200804040802) - Java CAPS Enabled
Java: 1.5.0_11; Java HotSpot(TM) Client VM 1.5.0_11-b03
System: SunOS version 5.10 running on x86; ISO646-US; en (nb)
Userdir: /Users/lautz/sierrabuilds/JavaCAPS20080406/.netbeans/caps

A11y now provides the following problematic results:

 Components with potential mnemonics conflict:
 - components with mnemonic 'A' :
   Class: javax.swing.JButton {  Add |  Adds a new part. }
   Class: javax.swing.JButton {  Add |  Adds a new part. }
   Class: javax.swing.JButton {  Add |  Adds a new part. }

(JML: these really do conflict: 
1. I tab into the Input message parts table, and Alt-A, fine -- the first Add button adds parts to the input message. 
2. I Ctl-tab to get to Add, then tab into the Output message parts table, and use Alt-A to add parts to the output message.
3. I Ctl-tab to get to Add, then tab into the Fault field, where I type a name.
==> 4. I Alt-A, which jumps to the Input message and starts adding parts to the input message parts table.

This is unexpected behavior. 

However, there is an accessible workaround -- to tab to the Add button and click Enter to add parts to the fault message.