--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/beans/PropertyChangeSupport/Test4092905.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,88 @@
+/*
+ * Copyright 1998-2007 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/*
+ * @test
+ * @bug 4092905
+ * @summary Tests that hasListeners() is not failed across serialization
+ * @author Graham Hamilton
+ */
+
+import java.beans.PropertyChangeEvent;
+import java.beans.PropertyChangeListener;
+import java.beans.PropertyChangeSupport;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+import java.io.Serializable;
+
+public class Test4092905 {
+    private static final String PUBLIC = "public";
+    private static final String PRIVATE = "private";
+
+    public static void main(String[] args) {
+        PropertyChangeSupport pcs = new PropertyChangeSupport(args);
+        pcs.addPropertyChangeListener(PUBLIC, new PublicListener());
+        pcs.addPropertyChangeListener(PRIVATE, new PrivateListener());
+
+        if (!pcs.hasListeners(PUBLIC)) {
+            throw new Error("no public listener");
+        }
+        if (!pcs.hasListeners(PRIVATE)) {
+            throw new Error("no private listener");
+        }
+
+        try {
+            // serialize into byte array
+            ByteArrayOutputStream baos = new ByteArrayOutputStream();
+            ObjectOutputStream output = new ObjectOutputStream(baos);
+            output.writeObject(pcs);
+            output.flush();
+            // deserialize from byte array
+            ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
+            ObjectInputStream input = new ObjectInputStream(bais);
+            pcs = (PropertyChangeSupport) input.readObject();
+        } catch (Exception exception) {
+            throw new Error("unexpected exception", exception);
+        }
+
+        if (!pcs.hasListeners(PUBLIC)) {
+            throw new Error("no public listener");
+        }
+        if (pcs.hasListeners(PRIVATE)) {
+            throw new Error("unexpected private listener");
+        }
+    }
+
+    public static class PublicListener implements PropertyChangeListener, Serializable {
+        public void propertyChange(PropertyChangeEvent event) {
+        }
+    }
+
+    private static class PrivateListener implements PropertyChangeListener {
+        public void propertyChange(PropertyChangeEvent event) {
+        }
+    }
+}