CordovaSim: Debugger doesn't work properly with the last JDK 8u20 ----------------------------------------------------------------- Key: JBIDE-18526 URL: https://issues.jboss.org/browse/JBIDE-18526 Project: Tools (JBoss Tools) Issue Type: Bug Components: browsersim, cordovasim, upstream Affects Versions: 4.2.0.CR2 Environment: Not reproducible with Oracle JDK 7u67 Affects Oracle JDK 8u20 and above (Not reproducible with JDK 8u5 and 8u11) Reporter: Ilya Buziuk Assignee: Ilya Buziuk Priority: Critical Labels: upstream Fix For: 4.12.x Attachments: debugger error.png CordovaSim freezes with the following stack trace: {code} 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) {code}