hg: jdk/client: 8221741: ClassCastException can happen when fontconfig.properties is used

[christoph.langer at sap.com]

Changeset: b344cf155157
Author:    clanger
Date:      2020-02-02 17:41 +0100
URL:       https://hg.openjdk.java.net/jdk/client/rev/b344cf155157

8221741: ClassCastException can happen when fontconfig.properties is used
Reviewed-by: mbaesken, itakiguchi

! src/java.desktop/share/classes/sun/font/SunFontManager.java
! src/java.desktop/share/classes/sun/font/TrueTypeFont.java
+ test/jdk/java/awt/font/DefaultFontTest/DefaultFontTest.java