--- /dev/null	2010-01-11 13:24:46.000000000 -0800
+++ new/test/sun/misc/Continuation/ContinuationTestBase.java	2010-08-30 12:48:18.924963000 -0700
@@ -0,0 +1,225 @@
+/*
+ * Copyright 2010 Google, 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.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * 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.
+ */
+import sun.misc.Continuation;
+import java.util.*;
+import java.util.concurrent.*;
+
+/*
+ * Shared code among the continuation tests.
+ */
+public class ContinuationTestBase {
+
+    static class A {
+        static int f = 0;
+    }
+
+    static String gammon1() {
+        String normally = "";
+        try {
+            System.out.println("ENTER gammon1");
+            String res = "gammon1+"+spinach(true);
+            normally = " NORMALLY";
+            return res;
+        } finally {
+            System.out.println("EXIT gammon1"+normally);
+        }
+    }
+
+    static String gammon2(final int iter) {
+        String normally = "";
+        try {
+            System.out.println("ENTER gammon2");
+            int s = 0;
+            String str = "";
+            for (int i = 0; i < iter; ++i) {
+                s = s ^ (i << 32) % 344;
+                if (s % 1000 == 0) {
+                    str += s;
+                }
+                if (i % 1000 == 0) {
+                    System.out.print(".");
+                }
+            }
+            String res = "gammon2+" + spinach(true);
+            System.out.println("after spinach.");
+            s = 0;
+            str = "";
+            for (int i = 0; i < iter; ++i) {
+                s = s ^ (i << 32) % 344;
+                if (s % 1000 == 0) {
+                    str += s;
+                }
+                if (i % 1000 == 0) {
+                    System.out.print(".");
+                }
+            }
+             normally = " NORMALLY" + str.hashCode();
+            return res;
+        } finally {
+            System.out.println("EXIT gammon2" + normally);
+        }
+    }
+
+    static String gammon3(boolean doSave) {
+        String normally = "";
+        try {
+            System.out.println("ENTER gammon3");
+            int s = 0;
+            String str = "";
+            for (int i = 0; i < 65000; ++i) {
+                s = s ^ (i << 32) % 344;
+                if (s % 1000 == 0) {
+                    str += s;
+                }
+                if (i % 1000 == 0) {
+                    System.out.print(".");
+                }
+            }
+            String res = "gammon3+" + spinach(doSave);
+            System.out.println("after spinach.");
+            s = doSave ? 0 : A.f; // induce deopt when doSave = false
+            str = "";
+            for (int i = 0; i < 65000; ++i) {
+                s = s ^ (i << 32) % 344;
+                if (s % 1000 == 0) {
+                    str += s;
+                }
+                if (i % 1000 == 0) {
+                    System.out.print(".");
+                }
+            }
+            normally = " NORMALLY" + str.hashCode();
+            return res;
+        } finally {
+            System.out.println("EXIT gammon3"+normally);
+        }
+    }
+
+    static String gammon4(final int iter) {
+        String normally = "";
+        try {
+            System.out.println("ENTER gammon4");
+            int s = 0;
+            String str = "";
+            for (int i = 0; i < iter; ++i) {
+                s = s ^ (i << 32) % 344;
+                if (s % 1000 == 0) {
+                    str += s;
+                }
+                if (i % 1000 == 0) {
+                    System.out.print(".");
+                }
+            }
+            String res = "gammon4+" + spinach2(true);
+            System.out.println("after spinach2.");
+            s = 0;
+            str = "";
+            for (int i = 0; i < iter; ++i) {
+                s = s ^ (i << 32) % 344;
+                if (s % 1000 == 0) {
+                    str += s;
+                }
+                if (i % 1000 == 0) {
+                    System.out.print(".");
+                }
+            }
+            normally = " NORMALLY" + str.hashCode();
+            return res;
+        } finally {
+            System.out.println("EXIT gammon4" + normally);
+        }
+    }
+
+    static String spinach(boolean doSave) {
+        String normally = "";
+        try {
+            System.out.println("ENTER spinach");
+            String res = "spinach+" + magic(doSave);
+            System.out.println("after magic.");
+            normally = " NORMALLY";
+            return res;
+        } finally {
+            System.out.println("EXIT spinach" + normally);
+        }
+    }
+
+    static String spinach2(boolean doSave) {
+        String normally = "";
+        try {
+            System.out.println("ENTER spinach2");
+            String res = "spinach2+" + recurse(doSave, 200);
+            System.out.println("after magic.");
+            normally = " NORMALLY";
+            return res;
+        } finally {
+            System.out.println("EXIT spinach" + normally);
+        }
+    }
+
+    static String recurse(boolean doSave, int n) {
+        if (n != 0) {
+            return recurse(doSave, n - 1);
+        }
+        return magic(doSave);
+    }
+
+    static String magic(boolean doSave) {
+        if (!doSave) {
+            return "deopt";
+        }
+        Continuation cont = new Continuation();
+        Object rv = cont.save();
+        System.out.println("Just resumed.");
+        rv = toString(rv);
+        System.out.println("save rv="+rv);
+        return rv.toString();
+    }
+
+    static String toString(Object x) {
+        if (x == null)  return "null";
+        if (x instanceof Object[])
+            return Arrays.deepToString((Object[])x);
+        return x.toString();
+    }
+
+    static ExecutorService executor = Executors.newFixedThreadPool(2);
+
+    // A helper for repeating the save-resume cycle
+    static void saveResumeCycle(final Runnable task,
+                                final Object return_value) {
+        Runnable r = new Runnable() {
+            public void run() {
+                final Continuation c = (Continuation) Continuation.enter(task, executor);
+                if (c != null) {
+                    Runnable resumer = new Runnable() {
+                        public void run() {
+                            c.resume(return_value);
+                        }};
+                    saveResumeCycle(resumer, return_value);
+                }
+            }};
+        executor.execute(r);
+    }
+}