CordovaSim: Debugger doesn't work properly with the last JDK 8u20

java.lang.IllegalStateException: Nested event loops are allowed only while handling system events
	at com.sun.javafx.tk.quantum.QuantumToolkit.enterNestedEventLoop(QuantumToolkit.java:506)
	at com.sun.javafx.webkit.EventLoopImpl.cycle(EventLoopImpl.java:59)
	at com.sun.webkit.EventLoop.fwkCycle(EventLoop.java:45)
	at com.sun.webkit.Timer.twkFireTimerEvent(Native Method)
	at com.sun.webkit.Timer.fireTimerEvent(Timer.java:83)
	at com.sun.webkit.Timer.notifyTick(Timer.java:64)
	at javafx.scene.web.WebEngine$PulseTimer.lambda$static$44(WebEngine.java:1167)
	at javafx.scene.web.WebEngine$PulseTimer$$Lambda$67/10449826.pulse(Unknown Source)
	at com.sun.javafx.tk.Toolkit.lambda$runPulse$28(Toolkit.java:314)
	at com.sun.javafx.tk.Toolkit$$Lambda$134/26908315.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at com.sun.javafx.tk.Toolkit.runPulse(Toolkit.java:313)
	at com.sun.javafx.tk.Toolkit.firePulse(Toolkit.java:340)
	at com.sun.javafx.tk.quantum.QuantumToolkit.pulse(QuantumToolkit.java:451)
	at com.sun.javafx.tk.quantum.QuantumToolkit.pulse(QuantumToolkit.java:431)
	at com.sun.javafx.tk.quantum.QuantumToolkit.lambda$runToolkit$363(QuantumToolkit.java:298)
	at com.sun.javafx.tk.quantum.QuantumToolkit$$Lambda$40/33541029.run(Unknown Source)
	at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method)
	at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:2549)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3759)
	at org.jboss.tools.vpe.cordovasim.CordovaSimRunner.startCordovaSim(CordovaSimRunner.java:114)
	at org.jboss.tools.vpe.cordovasim.CordovaSimRunner.main(CordovaSimRunner.java:91)