package fxtest;

import java.util.concurrent.atomic.AtomicInteger;

import javafx.beans.InvalidationListener;
import javafx.beans.Observable;
import javafx.beans.property.ObjectProperty;
import javafx.beans.property.SimpleObjectProperty;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;

public class ObjectPropertyChangeListenerBug {
	public static void main(final String[] args) {
		final ObjectProperty<ObservableList<Integer>> itemsProperty = new SimpleObjectProperty<ObservableList<Integer>>(
				FXCollections.<Integer> observableArrayList());

		final AtomicInteger invalidationCount = new AtomicInteger(0);
		final AtomicInteger changeCount = new AtomicInteger(0);

		itemsProperty.addListener(new InvalidationListener() {
			@Override
			public void invalidated(Observable paramObservable) {
				invalidationCount.incrementAndGet();
			}
		});

		itemsProperty
				.addListener(new ChangeListener<ObservableList<Integer>>() {
					@Override
					public void changed(
							final ObservableValue<? extends ObservableList<Integer>> observableValue,
							final ObservableList<Integer> oldValue,
							final ObservableList<Integer> newValue) {
						changeCount.incrementAndGet();
					}
				});

		itemsProperty.set(FXCollections.<Integer> observableArrayList());

		assert (invalidationCount.get() == 1);
		assert (changeCount.get() == 1);
	}
}