When glass thread checks are enabled, the following test failures occur:

com.sun.javafx.application.SingleExitExplicit2Test > testExplicitExitReEnable FAILED
    java.lang.IllegalStateException: This operation is permitted on the event thread only; currentThread = Test worker
        at com.sun.glass.ui.Application.checkEventThread(Application.java:423)
        at com.sun.glass.ui.Application.isNestedLoopRunning(Application.java:524)
        at com.sun.javafx.tk.quantum.QuantumToolkit.isNestedLoopRunning(QuantumToolkit.java:1067)
        at com.sun.javafx.application.PlatformImpl.checkIdle(PlatformImpl.java:399)
        at com.sun.javafx.application.PlatformImpl.setImplicitExit(PlatformImpl.java:352)
        at javafx.application.Platform.setImplicitExit(Platform.java:104)
        at com.sun.javafx.application.SingleExitCommon.doTestCommon(SingleExitCommon.java:213)
        at com.sun.javafx.application.SingleExitCommon.doTestCommon(SingleExitCommon.java:138)
        at com.sun.javafx.application.SingleExitCommon.doTestExplicitExitReEnable(SingleExitCommon.java:259)
        at com.sun.javafx.application.SingleExitExplicit2Test.testExplicitExitReEnable(SingleExitExplicit2Test.java:37)


com.sun.javafx.application.SingleExitExplicitError2Test > testExplicitExitReEnableWithError FAILED
    java.lang.IllegalStateException: This operation is permitted on the event thread only; currentThread = Test worker
        at com.sun.glass.ui.Application.checkEventThread(Application.java:423)
        at com.sun.glass.ui.Application.isNestedLoopRunning(Application.java:524)
        at com.sun.javafx.tk.quantum.QuantumToolkit.isNestedLoopRunning(QuantumToolkit.java:1067)
        at com.sun.javafx.application.PlatformImpl.checkIdle(PlatformImpl.java:399)
        at com.sun.javafx.application.PlatformImpl.setImplicitExit(PlatformImpl.java:352)
        at javafx.application.Platform.setImplicitExit(Platform.java:104)
        at com.sun.javafx.application.SingleExitCommon.doTestCommon(SingleExitCommon.java:213)
        at com.sun.javafx.application.SingleExitCommon.doTestExplicitExitReEnableWithError(SingleExitCommon.java:331)
        at com.sun.javafx.application.SingleExitExplicitError2Test.testExplicitExitReEnableWithError(SingleExitExplicitError2Test.java:37)


com.sun.javafx.application.SingleExitExplicitException2Test > testExplicitExitReEnableWithException FAILED
    java.lang.IllegalStateException: This operation is permitted on the event thread only; currentThread = Test worker
        at com.sun.glass.ui.Application.checkEventThread(Application.java:423)
        at com.sun.glass.ui.Application.isNestedLoopRunning(Application.java:524)
        at com.sun.javafx.tk.quantum.QuantumToolkit.isNestedLoopRunning(QuantumToolkit.java:1067)
        at com.sun.javafx.application.PlatformImpl.checkIdle(PlatformImpl.java:399)
        at com.sun.javafx.application.PlatformImpl.setImplicitExit(PlatformImpl.java:352)
        at javafx.application.Platform.setImplicitExit(Platform.java:104)
        at com.sun.javafx.application.SingleExitCommon.doTestCommon(SingleExitCommon.java:213)
        at com.sun.javafx.application.SingleExitCommon.doTestExplicitExitReEnableWithException(SingleExitCommon.java:295)
        at com.sun.javafx.application.SingleExitExplicitException2Test.testExplicitExitReEnableWithException(SingleExitExplicitException2Test.java:37)