Review Request 8176813: Mac: Failure to exit full-screen programmatically in some cases

[Avik Niyogi]

Please review the webrev below which tries to fix the issue of GetApplication processed for Null values. Any alternatives or suggestions are welcome. This fixes the issue presented by the description.
https://bugs.openjdk.java.net/browse/JDK-8176813 <https://bugs.openjdk.java.net/browse/JDK-8176813>
http://cr.openjdk.java.net/~aniyogi/8176813/webrev.00/ <http://cr.openjdk.java.net/~aniyogi/8176813/webrev.00/>
With Regards,
Avik Niyogi