diff -r fd16c54261b3 -r 90ce3da70b43 jdk/test/java/lang/StringBuffer/SetLength.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/lang/StringBuffer/SetLength.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,47 @@
+/*
+ * Copyright 1997 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 4089062
+   @summary A String created from a StringBuffer can be overwritten
+   if setLength() to a value less than the buffer length is called
+   on the StringBuffer and then the StringBuffer is appended to.
+   @author Robert Field
+*/
+
+public class SetLength {
+    public static void main(String[] argv) throws Exception {
+        StringBuffer active = new StringBuffer();
+        active.append("first one");
+        String a = active.toString();
+        active.setLength(0);
+        active.append("second");
+        String b = active.toString();
+        active.setLength(0);
+        System.out.println("first: " + a);
+        System.out.println("second: " + b);
+        if (!a.equals("first one")) {
+            throw new Exception("StringBuffer.setLength() overwrote string");
+        }
+    }
+}