bug : https://bugs.openjdk.java.net/browse/JDK-8245159 webrev: http://cr.openjdk.java.net/~prr/8245159/
TextLayout does not like being constructed with an empty string, so when we accept a string from the application and use it in creating a TextLayout we need to be check.I looked around for other cases that may be missing a check but did not spot any.
-phil.
