8.0-controls-scrum-620: fonts are not found

GUIMark2.Text benchmark fails with following exception starting from build 8.0-controls-scrum-620:
Wrong font. Expected: Star Jedi, using: Champignon
java.lang.Exception: Stack trace
at java.lang.Thread.dumpStack(Thread.java:1347)
at guimark2.TextTest.checkFont(TextTest.java:338)
at guimark2.TextTest.checkNodeFonts(TextTest.java:356)
at guimark2.TextTest.access$000(TextTest.java:36)
at guimark2.TextTest$1.run(TextTest.java:209)
at com.sun.javafx.application.PlatformImpl$5$1.run(PlatformImpl.java:226)at com.sun.javafx.application.PlatformImpl$5$1.run(PlatformImpl.java:223)at java.security.AccessController.doPrivileged(Native Method)at com.sun.javafx.application.PlatformImpl$5.run(PlatformImpl.java:223)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)

Wrong font. Expected: Arial, using: Champignon
java.lang.Exception: Stack trace
at java.lang.Thread.dumpStack(Thread.java:1347)
at guimark2.TextTest.checkFont(TextTest.java:338)
at guimark2.TextTest.checkNodeFonts(TextTest.java:357)
at guimark2.TextTest.access$000(TextTest.java:36)
at guimark2.TextTest$1.run(TextTest.java:209)
at com.sun.javafx.application.PlatformImpl$5$1.run(PlatformImpl.java:226)
at com.sun.javafx.application.PlatformImpl$5$1.run(PlatformImpl.java:223)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.application.PlatformImpl$5.run(PlatformImpl.java:223)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
...

8.0-controls-scrum-620 contains the following changes:
    1. Automated merge with ssh://jfxsrc.us.oracle.com//javafx/8.0/scrum/controls/jfx/rt — David Grieve / detail
    2. [UNIT TEST] resolve unit test failures related to RT-30892 — David Grieve / detail
    3. Automated merge with ssh://jfxsrc.us.oracle.com//javafx/8.0/scrum/controls/jfx/rt — David Grieve / detail
    4. RT-30892: rework calculated value cache for better css performance — David Grieve / detail

Steps to reproduce the issue:
> cd JFX_WS/tests/performance/GUIMark2/
> ant
> java -cp "JFX_HOME/rt/lib/ext/jfxrt.jar;./dist/GUIMark2.jar.jar" guimark2.TextTest