hg: jdk8u/jdk8u-dev/jdk: 8209113: Use WeakReference for lastFontStrike for created Fonts

[zgu at redhat.com]

Changeset: 67d5cb78784c
Author:    prr
Date:      2019-12-05 13:24 -0800
URL:       https://hg.openjdk.java.net/jdk8u/jdk8u-dev/jdk/rev/67d5cb78784c

8209113: Use WeakReference for lastFontStrike for created Fonts
Reviewed-by: serb, jdv

! src/share/classes/sun/font/Font2D.java
! src/share/classes/sun/font/FontStrikeDisposer.java
! src/share/classes/sun/font/SunFontManager.java