java.lang.IllegalStateException

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    • java.lang.IllegalStateException: Not on FX application thread; currentThread = Thread-4 at com.sun.javafx.tk.Toolkit.checkFxUserThread(Unknown Source) at com.sun.javafx.tk.quantum.QuantumToolkit.checkFxUserThread(Unknown Source) at javafx.scene.Parent$2.onProposedChange(Unknown Source) at com.sun.javafx.collections.VetoableListDecorator.setAll(Unknown Source) at com.sun.javafx.collections.VetoableListDecorator.setAll(Unknown Source) at com.sun.javafx.scene.control.skin.LabeledSkinBase.updateChildren(Unknown Source) at com.sun.javafx.scene.control.skin.LabeledSkinBase.handleControlPropertyChanged(Unknown Source) at com.sun.javafx.scene.control.skin.LabelSkin.handleControlPropertyChanged(Unknown Source) at com.sun.javafx.scene.control.skin.BehaviorSkinBase.lambda$registerChangeListener$61(Unknown Source) at com.sun.javafx.scene.control.MultiplePropertyChangeListenerHandler$1.changed(Unknown Source) at javafx.beans.value.WeakChangeListener.changed(Unknown Source) at com.sun.javafx.binding.ExpressionHelper$SingleChange.fireValueChangedEvent(Unknown Source) at com.sun.javafx.binding.ExpressionHelper.fireValueChangedEvent(Unknown Source) at javafx.beans.property.StringPropertyBase.fireValueChangedEvent(Unknown Source) at javafx.beans.property.StringPropertyBase.markInvalid(Unknown Source) at javafx.beans.property.StringPropertyBase.set(Unknown Source) at javafx.beans.property.StringPropertyBase.set(Unknown Source) at javafx.beans.property.StringProperty.setValue(Unknown Source) at javafx.scene.control.Labeled.setText(Unknown Source) at application.Controller$1$1.call(Controller.java:290) at application.Controller$1$1.call(Controller.java:1) at javafx.concurrent.Task$TaskCallable.call(Unknown Source) at java.util.concurrent.FutureTask.run(Unknown Source) at javafx.concurrent.Service.lambda$null$493(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at javafx.concurrent.Service.lambda$executeTask$494(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source)

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