--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/beans/XMLEncoder/Test4646747.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,56 @@
+/*
+ * Copyright 2004-2007 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 4646747
+ * @summary Tests that persistence delegate is correct after memory stress
+ * @author Mark Davidson
+ */
+
+import java.beans.DefaultPersistenceDelegate;
+import java.beans.PersistenceDelegate;
+import java.beans.XMLEncoder;
+
+/**
+ * This bug was introduced in 1.4 FCS but was working in 1.4.beta3
+ */
+public class Test4646747 {
+    public static void main(String[] args) {
+        XMLEncoder encoder = new XMLEncoder(System.out);
+        encoder.setPersistenceDelegate(Test4646747.class, new MyPersistenceDelegate());
+        // WARNING: This can eat up a lot of memory
+        Object[] obs = new Object[10000];
+        for (int i = 0; i < obs.length; i++) {
+            obs[i] = new int[1000];
+        }
+        System.gc();
+        System.gc();
+        PersistenceDelegate pd = encoder.getPersistenceDelegate(Test4646747.class);
+        if (!(pd instanceof MyPersistenceDelegate))
+            throw new Error("persistence delegate has been lost");
+    }
+
+    private static class MyPersistenceDelegate extends DefaultPersistenceDelegate {
+    }
+}