53 lines
1.7 KiB
Java
53 lines
1.7 KiB
Java
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/*
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* @test
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* @summary Makes sure that JLayer is synchronizable
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* @author Alexander Potochkin
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* @run main SerializationTest
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*/
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import javax.swing.*;
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import javax.swing.plaf.LayerUI;
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import java.io.ByteArrayInputStream;
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import java.io.ObjectOutputStream;
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import java.io.ObjectInputStream;
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import java.io.ByteArrayOutputStream;
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public class SerializationTest {
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public static void main(String[] args) throws Exception {
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ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
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ObjectOutputStream outputStream = new ObjectOutputStream(byteArrayOutputStream);
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JLayer<JButton> layer = new JLayer<JButton>(new JButton("Hello"));
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layer.setUI(new TestLayerUI<JButton>());
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outputStream.writeObject(layer);
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outputStream.flush();
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ByteArrayInputStream byteArrayInputStream =
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new ByteArrayInputStream(byteArrayOutputStream.toByteArray());
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ObjectInputStream inputStream = new ObjectInputStream(byteArrayInputStream);
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JLayer newLayer = (JLayer) inputStream.readObject();
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if (newLayer.getLayout() == null) {
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throw new RuntimeException("JLayer's layout is null");
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}
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if (newLayer.getGlassPane() == null) {
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throw new RuntimeException("JLayer's glassPane is null");
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}
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if (newLayer.getUI().getClass() != layer.getUI().getClass()) {
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throw new RuntimeException("Different UIs");
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}
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if (newLayer.getView().getClass() != layer.getView().getClass()) {
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throw new RuntimeException("Different Views");
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}
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}
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static class TestLayerUI<V extends JComponent> extends LayerUI<V> {
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public String toString() {
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return "TestLayerUI";
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}
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}
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}
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