[OpenJDK 2D-Dev] RFR (urgent) 8162097: [PIT] A series of closed tests about SunFontManager throw NPE on Windows

[Phil Race]

http://cr.openjdk.java.net/~prr/8162097/

I have an urgent RFR which is blocking PIT.

The fix  : https://bugs.openjdk.java.net/browse/JDK-8152971 to eliminate 
some JNI warnings.

is prematurely deleting a local ref which is used in a callback function.
As as result we get many NPEs in Java code.
The fix is to move the (normal case) delete to after we've done with the 
callback.

The tests which failed before this fix now pass.
Also the JNI check test is not seeing "new" issues .. there are already 
JNI warnings
that it finds in other code.

-phil.