diff -r b8ea6866765a -r d7ab9742e1cf jdk/test/java/awt/geom/Arc2D/SerializationTest.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/awt/geom/Arc2D/SerializationTest.java	Tue May 10 15:59:01 2011 -0700
@@ -0,0 +1,100 @@
+/*
+ * Copyright (c) 2011, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/**
+ * @test
+ * @bug 7040717 6522514
+ * @summary Verifies that subclasses of Arc2D can be serialized.
+ * @run main SerializationTest
+ */
+
+import java.awt.geom.Rectangle2D;
+import java.awt.geom.Arc2D;
+import java.io.Serializable;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+
+public class SerializationTest {
+    static boolean failed;
+    public static void main(String args[]) {
+        test(new Arc());
+        test(new ArcF());
+        test(new ArcD());
+        if (failed) throw new RuntimeException("some tests failed");
+    }
+
+    public static void test(Object a) {
+        try {
+            File objectbin = new File("object.bin");
+            FileOutputStream fos = new FileOutputStream(objectbin);
+            ObjectOutputStream out = new ObjectOutputStream(fos);
+            out.writeObject(a);
+            fos.close();
+            FileInputStream fis = new FileInputStream(objectbin);
+            ObjectInputStream in = new ObjectInputStream(fis);
+            Object o = in.readObject();
+            fis.close();
+            System.err.println(o);
+        } catch (Throwable ex) {
+            ex.printStackTrace();
+            failed = true;
+        }
+    }
+
+    static class Arc extends Arc2D implements Serializable {
+        public Arc() {
+            super(Arc2D.OPEN);
+        }
+
+        public Rectangle2D makeBounds(double x, double y, double w, double h) {
+            return new Rectangle2D.Double(x, y, w, h);
+        }
+        public double getX() { return 0; }
+        public double getY() { return 0; }
+        public double getWidth() { return 0; }
+        public double getHeight() { return 0; }
+        public double getAngleExtent() { return 0; }
+        public double getAngleStart() { return 0; }
+        public void setAngleExtent(double angExt) { }
+        public void setAngleStart(double angExt) { }
+        public void setFrame(double x, double y, double w, double h) {}
+        public void setArc(double x, double y, double w, double h,
+                           double s, double e, int c)
+        {
+        }
+        public boolean isEmpty() { return false; };
+    }
+
+    static class ArcF extends Arc2D.Float implements Serializable {
+        public ArcF() {
+        }
+    }
+
+    static class ArcD extends Arc2D.Double implements Serializable {
+        public ArcD() {
+        }
+    }
+}