to run the benchmark with j2d you can use run-vector-bm ant target, just add
            <jvmarg value="-Djavafx.toolkit=prism" />
            <jvmarg value="-Dprism.order=j2d" />
to the target.
Sometimes it throws:
java.lang.IllegalStateException: The view has already been closed
at com.sun.glass.ui.View.checkNotClosed(View.java:138)
at com.sun.glass.ui.View.uploadPixels(View.java:363)
at com.sun.prism.j2d.J2DPresentable$Glass$1.run(J2DPresentable.java:84)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.access$100(WinApplication.java:29)
at com.sun.glass.ui.win.WinApplication$2$1.run(WinApplication.java:54)
at java.lang.Thread.run(Unknown Source)

When I run the benchmark locally I've got this exception only twice, but http://aurora-ds.russia.sun.com:9500/runs/3886.FX2-graphics-scrum-42/.workload.log.825 shows that it can be thrown for every iteration,
so it looks like it is a thread race :( in single-threaded app ;)