[9] Review Request for 8085948: [Regression] Few Swing, AWT and 2D case fails with Decoder isn't implemented for WingDings Charset error on Windows

[Semyon Sadetsky]

Hello,

Please review fix for JDK9:
bug: https://bugs.openjdk.java.net/browse/JDK-8085948
webrev: http://cr.openjdk.java.net/~ssadetsky/8085948/webrev.00/
It is a regression of JDK-8035302. The charset name is requested from a 
dummy stream reader. But it requires creating of the charset decoder to 
create the reader but decoder is not implemented for WingDings and 
Symbol charsets in Windows. To fix I propose to retarget to writer's 
encoding name.

--Semyon