hg: openjfx/8u-dev/rt: RT-38389: SubScene.setUserAgentStylesheet() not resilient to stress

[david.grieve at oracle.com]

Changeset: dbc39f3566d5
Author:    David Grieve<david.grieve at oracle.com>
Date:      2014-09-04 16:43 -0400
URL:       http://hg.openjdk.java.net/openjfx/8u-dev/rt/rev/dbc39f3566d5

RT-38389: SubScene.setUserAgentStylesheet() not resilient to stress

! apps/toys/Hello/src/main/java/hello/HelloCSS.java
! modules/graphics/src/main/java/com/sun/javafx/css/StyleManager.java