--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/javax/swing/JLayer/SerializationTest/SerializationTest.java	Mon Aug 10 16:29:30 2009 +0400
@@ -0,0 +1,53 @@
+/*
+ * @test
+ * @summary Makes sure that JLayer is synchronizable
+ * @author Alexander Potochkin
+ * @run main SerializationTest
+ */
+
+import javax.swing.*;
+import javax.swing.plaf.LayerUI;
+import java.io.ByteArrayInputStream;
+import java.io.ObjectOutputStream;
+import java.io.ObjectInputStream;
+import java.io.ByteArrayOutputStream;
+
+public class SerializationTest {
+
+    public static void main(String[] args) throws Exception {
+        ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
+        ObjectOutputStream outputStream = new ObjectOutputStream(byteArrayOutputStream);
+
+        JLayer<JButton> layer = new JLayer<JButton>(new JButton("Hello"));
+
+        layer.setUI(new TestLayerUI<JButton>());
+
+        outputStream.writeObject(layer);
+        outputStream.flush();
+
+        ByteArrayInputStream byteArrayInputStream =
+                        new ByteArrayInputStream(byteArrayOutputStream.toByteArray());
+        ObjectInputStream inputStream = new ObjectInputStream(byteArrayInputStream);
+
+        JLayer newLayer = (JLayer) inputStream.readObject();
+
+        if (newLayer.getLayout() == null) {
+            throw new RuntimeException("JLayer's layout is null");
+        }
+        if (newLayer.getGlassPane() == null) {
+            throw new RuntimeException("JLayer's glassPane is null");
+        }
+        if (newLayer.getUI().getClass() != layer.getUI().getClass()) {
+            throw new RuntimeException("Different UIs");
+        }
+        if (newLayer.getView().getClass() != layer.getView().getClass()) {
+            throw new RuntimeException("Different Views");
+        }
+    }
+
+    static class TestLayerUI<V extends JComponent> extends LayerUI<V> {
+        public String toString() {
+            return "TestLayerUI";
+        }
+    }
+}
\ No newline at end of file