Hangs and nothing (no UI) shows up, until terminated. Happens sporadically.

“SimulationServer” #1 prio=5 os_prio=0 cpu=3093.75ms elapsed=6148.13s tid=0x00000000036b74e0 nid=0x8ed0 in Object.wait() [0x0000000002e8c000]
java.lang.Thread.State: RUNNABLE
at javafx.scene.Scene.(Scene.java:390)
– waiting on the Class initialization monitor for com.sun.javafx.scene.SceneHelper
at com.prosysopc.ua.app.simserver.ui.UI.(SourceFile:253)
at jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(java.base@17.0.5/Native Method)
at jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(java.base@17.0.5/NativeConstructorAccessorImpl.java:77)
at jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(java.base@17.0.5/DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstanceWithCaller(java.base@17.0.5/Constructor.java:499)
at java.lang.reflect.Constructor.newInstance(java.base@17.0.5/Constructor.java:480)
at com.google.inject.internal.DefaultConstructionProxyFactory$ReflectiveProxy.newInstance(DefaultConstructionProxyFactory.java:120)
at com.google.inject.internal.ConstructorInjector.provision(ConstructorInjector.java:114)
at com.google.inject.internal.ConstructorInjector.construct(ConstructorInjector.java:91)
at com.google.inject.internal.ConstructorBindingImpl$Factory.get(ConstructorBindingImpl.java:300)
at com.google.inject.internal.ProviderToInternalFactoryAdapter.get(ProviderToInternalFactoryAdapter.java:40)
at com.google.inject.internal.SingletonScope$1.get(SingletonScope.java:169)
at com.google.inject.internal.InternalFactoryToProviderAdapter.get(InternalFactoryToProviderAdapter.java:45)
at com.google.inject.internal.InternalInjectorCreator.loadEagerSingletons(InternalInjectorCreator.java:213)
at com.google.inject.internal.InternalInjectorCreator.injectDynamically(InternalInjectorCreator.java:186)
at com.google.inject.internal.InternalInjectorCreator.build(InternalInjectorCreator.java:113)
at com.google.inject.Guice.createInjector(Guice.java:87)
at com.google.inject.Guice.createInjector(Guice.java:69)
at com.prosysopc.ua.app.simserver.i.b(SourceFile:54)
at com.prosysopc.ua.app.simserver.SimulationServer.main(SourceFile:33)
at com.prosysopc.ua.app.Main.main(Main.java:13)
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(java.base@17.0.5/Native Method)
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(java.base@17.0.5/NativeMethodAccessorImpl.java:77)
at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(java.base@17.0.5/DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(java.base@17.0.5/Method.java:568)
at com.exe4j.runtime.LauncherEngine.launch(LauncherEngine.java:84)
at com.exe4j.runtime.WinLauncher.main(WinLauncher.java:94)
at com.install4j.runtime.launcher.WinLauncher.main(WinLauncher.java:25)

Other Thread

“JavaFX Application Thread” #26 prio=5 os_prio=0 cpu=93.75ms elapsed=6143.97s tid=0x000000003410c910 nid=0x86ec in Object.wait() [0x000000003608d000]
java.lang.Thread.State: RUNNABLE
at java.lang.Class.forName0(java.base@17.0.5/Native Method)
– waiting on the Class initialization monitor for javafx.scene.Scene
at java.lang.Class.forName(java.base@17.0.5/Class.java:467)
at com.sun.javafx.util.Utils.forceInit(Utils.java:866)
at com.sun.javafx.scene.SceneHelper.(SceneHelper.java:47)
at javafx.stage.PopupWindow.(PopupWindow.java:163)
at javafx.scene.control.PopupControl.(PopupControl.java:115)
at javafx.scene.control.Tooltip.(Tooltip.java:166)
at org.controlsfx.validation.decoration.GraphicValidationDecoration.createTooltip(GraphicValidationDecoration.java:126)
at org.controlsfx.validation.decoration.GraphicValidationDecoration.createDecorationNode(GraphicValidationDecoration.java:109)
at org.controlsfx.validation.decoration.GraphicValidationDecoration.createValidationDecorations(GraphicValidationDecoration.java:149)
at org.controlsfx.validation.decoration.AbstractValidationDecoration.applyValidationDecoration(AbstractValidationDecoration.java:86)
at de.saxsys.mvvmfx.utils.validation.visualization.ControlsFxVisualizer.applyVisualization(ControlsFxVisualizer.java:70)
at de.saxsys.mvvmfx.utils.validation.visualization.ValidationVisualizerBase.lambda$initVisualization$2(ValidationVisualizerBase.java:49)
at de.saxsys.mvvmfx.utils.validation.visualization.ValidationVisualizerBase$$Lambda$444/0x0000000800822f30.run(Unknown Source)
at com.sun.javafx.application.PlatformImpl.lambda$runLater$10(PlatformImpl.java:457)
at com.sun.javafx.application.PlatformImpl$$Lambda$231/0x0000000800327248.run(Unknown Source)
at java.security.AccessController.executePrivileged(java.base@17.0.5/AccessController.java:776)
at java.security.AccessController.doPrivileged(java.base@17.0.5/AccessController.java:399)
at com.sun.javafx.application.PlatformImpl.lambda$runLater$11(PlatformImpl.java:456)
at com.sun.javafx.application.PlatformImpl$$Lambda$229/0x0000000800323d60.run(Unknown Source)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:96)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(WinApplication.java:184)
at com.sun.glass.ui.win.WinApplication$$Lambda$220/0x0000000800319a18.run(Unknown Source)
at java.lang.Thread.run(java.base@17.0.5/Thread.java:833)