--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/6857159/Test6857159.java	Tue Jul 21 16:42:58 2009 -0700
@@ -0,0 +1,68 @@
+/*
+ * Copyright 2009 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 6857159
+ * @summary local schedule failed with checkcast of Thread.currentThread()
+ *
+ * @run shell Test6857159.sh
+ */
+
+public class Test6857159 extends Thread {
+    static class ct0 extends Test6857159 {
+        public void message() {
+            // System.out.println("message");
+        }
+
+        public void run() {
+             message();
+             ct0 ct = (ct0) Thread.currentThread();
+             ct.message();
+        }
+    }
+    static class ct1 extends ct0 {
+        public void message() {
+            // System.out.println("message");
+        }
+    }
+    static class ct2 extends ct0 {
+        public void message() {
+            // System.out.println("message");
+        }
+    }
+
+    public static void main(String[] args) throws Exception {
+        for (int i = 0; i < 100000; i++) {
+            Thread t = null;
+            switch (i % 3) {
+              case 0: t = new ct0(); break;
+              case 1: t = new ct1(); break;
+              case 2: t = new ct2(); break;
+            }
+            t.start();
+            t.join();
+        }
+    }
+}