[9] [8u] Review request for 8165342: NPE when JavaFX loads default stylesheet or font families if CCL is null

[Kevin Rushforth]

Please review the following fix:

JBS: https://bugs.openjdk.java.net/browse/JDK-8165342
9 webrev: http://cr.openjdk.java.net/~kcr/8165342/9/webrev.00/
8u webrev: http://cr.openjdk.java.net/~kcr/8165342/8u/webrev.00/

This was initially discovered in JDK 8u and is a regression from  JDK 7. 
It is mostly fixed in JDK 9 already (due to some of the Jigsaw changes), 
but we still have a regression in one area in JDK 9. Since we need to 
fix this for JDK 8u where the problem is more serious, I am sending out 
the webrev for both releases at the same time.

Details are in JBS.

NOTE: once the review is done, I will go through the process of 
approving it for JDK 9.

-- Kevin