--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/nashorn/test/script/trusted/optimistic_recompilation.js	Tue Apr 29 16:00:53 2014 +0200
@@ -0,0 +1,82 @@
+/*
+ * Copyright (c) 2014, 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.
+ */
+
+/** 
+ * Ask Debug for an event log of favourable events instead of using --log flags printing to screen 
+ * @test
+ * @bug 8037086,8038398
+ * @fork
+ * @option -Dnashorn.debug=true
+ * @option --log=recompile:quiet
+ */
+
+var forName       = java.lang.Class["forName(String)"];
+var RuntimeEvent  = forName("jdk.nashorn.internal.runtime.events.RuntimeEvent").static;
+var getValue      = RuntimeEvent.class.getMethod("getValue");
+var RewriteException = forName("jdk.nashorn.internal.runtime.RewriteException").static;
+var getReturnType    = RewriteException.class.getMethod("getReturnType");
+var RecompilationEvent = forName("jdk.nashorn.internal.runtime.events.RecompilationEvent").static;
+var getReturnValue     = RecompilationEvent.class.getMethod("getReturnValue");
+var setReturnTypeAndValue = [];
+var expectedValues = [];
+
+function checkExpectedRecompilation(f, expectedValues, testCase) {
+    Debug.clearRuntimeEvents();
+    print(f());
+    events = Debug.getRuntimeEvents();
+    //make sure we got runtime events
+    print("events = " + (events.toString().indexOf("RuntimeEvent") != -1)); 
+    if (events.length ==  expectedValues.length) {
+        for (var i in events) {
+            var e = events[i];
+            var returnValue = getReturnValue.invoke(e);
+            if (typeof returnValue != 'undefined') {
+	        setReturnTypeAndValue[i] = [getReturnType.invoke(getValue.invoke(e)), returnValue];
+            } else {
+                returnValue = "undefined";
+                setReturnTypeAndValue[i] = [getReturnType.invoke(getValue.invoke(e)), returnValue];
+            }
+            if (!setReturnTypeAndValue[i].toString().equals(expectedValues[i].toString())) {
+                fail("The return values are not as expected. Expected value: " + expectedValues[i] + " and got: " + setReturnTypeAndValue[i] + " in test case: " + f);
+            }
+        }
+    } else {
+        fail("Number of Deoptimizing recompilation is not correct, expected: " + expectedValues.length + " and found: " + events.length + " in test case: " + f);       
+    }    
+}
+
+checkExpectedRecompilation(function divisionByZeroTest() {var x = { a: 2, b:1 }; x.a = Number.POSITIVE_INFINITY; x.b = 0; print(x.a/x.b); return 1;}, 
+                           expectedValues =[['double', 'Infinity']]);
+checkExpectedRecompilation(function divisionWithRemainderTest() {var x = { a: 7, b:2 }; print(x.a/x.b); return 1;}, expectedValues =[['double', '3.5']]);
+checkExpectedRecompilation(function infinityMultiplicationTest() {var x = { a: Number.POSITIVE_INFINITY, b: Number.POSITIVE_INFINITY}; print(x.a*x.b); return 1;}, 
+                           expectedValues =[['double', 'Infinity']]);
+checkExpectedRecompilation(function maxValueMultiplicationTest() {var x = { a: Number.MAX_VALUE, b: Number.MAX_VALUE}; print(x.a*x.b); return 1;}, 
+                           expectedValues =[['double', '1.7976931348623157e+308']]);
+checkExpectedRecompilation(function divisionByInfinityTest() {var x = { a: -1, b: Number.POSITIVE_INFINITY}; print(x.a/x.b); return 1;}, 
+                           expectedValues =[['double', 'Infinity']]);
+checkExpectedRecompilation(function divisionByStringTest() {var x = { a: Number.POSITIVE_INFINITY, b: 'Hello'}; print(x.a/x.b); return 1;}, 
+                           expectedValues =[['double', 'Infinity']]);
+checkExpectedRecompilation(function nestedFunctionTest() {var a=3,b,c; function f() {var x = 2, y =1; function g(){var y = x; var z = a; z = x*y; print(a*b)} g()}f(); return 1;}, 
+                           expectedValues =[['object', 'undefined']]);
+checkExpectedRecompilation(function functionTest(a,b,c) { d = (a + b) * c; print(d); return 1;}, expectedValues =[['double', 'NaN']]);
+checkExpectedRecompilation(function andTest(a,b) { d = a && b; print(d); return 1;}, expectedValues =[['object', 'undefined']]);