The exception is observed for control's test suite (~30% probability). I can not reproduce with standalone test.

2011-11-10 22:52:59.539 java[88288:9f03] invalid CoreGraphics connection
2011-11-10 22:52:59.542 java[88288:9f03] invalid CoreGraphics connection
ES2Pipeline.isSupported factory.shutdown() took 0 ms [0.0 sec]
Graphics Device initialization failed for : es2
Error initializing QuantumRenderer: no suitable pipeline found
java.lang.RuntimeException: java.lang.RuntimeException: Error initializing QuantumRenderer: no suitable pipeline found
        at com.sun.javafx.tk.quantum.QuantumRenderer.getToolkit(QuantumRenderer.java:297)
        at com.sun.javafx.tk.quantum.QuantumToolkit.init(QuantumToolkit.java:231)
        at com.sun.javafx.tk.Toolkit.getToolkit(Toolkit.java:188)
        at com.sun.javafx.application.PlatformImpl.startup(PlatformImpl.java:66)
        at com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:145)
        at com.sun.javafx.application.LauncherImpl.access$000(LauncherImpl.java:27)
        at com.sun.javafx.application.LauncherImpl$1.run(LauncherImpl.java:97)
        at java.lang.Thread.run(Thread.java:680)
Caused by: java.lang.RuntimeException: Error initializing QuantumRenderer: no suitable pipeline found
        at com.sun.javafx.tk.quantum.QuantumRenderer$PipelineRunnable.init(QuantumRenderer.java:79)
        at com.sun.javafx.tk.quantum.QuantumRenderer$PipelineRunnable.run(QuantumRenderer.java:100)
        ... 1 more
Exception in thread "FX app launch thread" java.lang.RuntimeException: No toolkit found
        at com.sun.javafx.tk.Toolkit.getToolkit(Toolkit.java:200)
        at com.sun.javafx.application.PlatformImpl.startup(PlatformImpl.java:66)
        at com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:145)
        at com.sun.javafx.application.LauncherImpl.access$000(LauncherImpl.java:27)
        at com.sun.javafx.application.LauncherImpl$1.run(LauncherImpl.java:97)
        at java.lang.Thread.run(Thread.java:680)
2011-11-10 22:52:59.544 java[88288:9807] invalid CoreGraphics connection
2011-11-10 22:52:59.544 java[88288:9807] invalid CoreGraphics connection