Context Popup is not coming on Shift + F10 In JTree In Synth . It is coming in other LAFs.

Steps to reproduce:
--------------------
1) Unzip the attached Zip file.
2) Run the SynthTest with Build 32.
3) Right Click on the Tree root. You will see the Context Popup Menu.
4) Now Press Shift + F10. You will again see the Context Popup menu.
5) Change the look and feel to Synth .
4) Now repeat the steps 3 and 4. On Mouse click u will see the Context popup but not on Shift + F10.