[macosx] Mac OS X key event confusion for " COMMAND PLUS "

FULL PRODUCT VERSION :
1.7.0_25-b15 or 1.8.0-ea-b91 (should be uniform for any JDK 7 or 8)

ADDITIONAL OS VERSION INFORMATION :
Mac OS X 8.x (Snow Leopard)

A DESCRIPTION OF THE PROBLEM :
This is a Mac OS X specific problem for JDK 7 and JDK 8 (early access).

COMMAND PLUS produces 3 (equal) events KEY PRESSED instead of just 1.
In contrast, COMMAND MINUS works as expected.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Use KeyEventDemo.java from http://docs.oracle.com/javase/tutorial/uiswing/events/keylistener.html

Press COMMAND PLUS, i.e. the regular key labelled " + = " on an English keyboard.


EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
KEY PRESSED:
    key code = 61 (Equals)
    extended modifiers = 256 (Meta)
    action key? NO
    key location: standard

ACTUAL -

KEY PRESSED
    key code = 61 (Equals)
    extended modifiers = 256 (Meta)
    action key? NO
    key location: standard
KEY PRESSED:
    key code = 61 (Equals)
    extended modifiers = 256 (Meta)
    action key? NO
    key location: standard
KEY PRESSED:
    key code = 61 (Equals)
    extended modifiers = 256 (Meta)
    action key? NO
    key location: standard

That is: 3 events instead of just 1.

Note that on JDK 6 from Apple, there are slightly different events KEY PRESSED, KEY TYPED, KEY RELEASED, but that is a different story.

On JDK 7 and 8-ea, COMMAND MINUS produces just one KEY PRESSED event as expected.

REPRODUCIBILITY :
This bug can be reproduced always.

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http://docs.oracle.com/javase/tutorial/uiswing/examples/events/KeyEventDemoProject/src/events/KeyEventDemo.java
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