--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/compiler/profiling/TestUnexpectedProfilingMismatch.java	Wed Nov 13 09:45:58 2013 +0100
@@ -0,0 +1,102 @@
+/*
+ * Copyright (c) 2013, 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 8027631
+ * @summary profiling of arguments at calls cannot rely on signature of callee for types
+ * @run main/othervm -XX:-BackgroundCompilation -XX:TieredStopAtLevel=3 -XX:TypeProfileLevel=111 -XX:Tier3InvocationThreshold=200 -XX:Tier0InvokeNotifyFreqLog=7 TestUnexpectedProfilingMismatch
+ *
+ */
+
+import java.lang.invoke.*;
+
+public class TestUnexpectedProfilingMismatch {
+
+    static class A {
+    }
+
+    static class B {
+    }
+
+    static void mA(A a) {
+    }
+
+    static void mB(B b) {
+    }
+
+    static final MethodHandle mhA;
+    static final MethodHandle mhB;
+    static {
+        MethodHandles.Lookup lookup = MethodHandles.lookup();
+        MethodType mt = MethodType.methodType(void.class, A.class);
+        MethodHandle res = null;
+        try {
+            res = lookup.findStatic(TestUnexpectedProfilingMismatch.class, "mA", mt);
+        } catch(NoSuchMethodException ex) {
+        } catch(IllegalAccessException ex) {
+        }
+        mhA = res;
+        mt = MethodType.methodType(void.class, B.class);
+        try {
+            res = lookup.findStatic(TestUnexpectedProfilingMismatch.class, "mB", mt);
+        } catch(NoSuchMethodException ex) {
+        } catch(IllegalAccessException ex) {
+        }
+        mhB = res;
+    }
+
+    void m1(A a, boolean doit) throws Throwable {
+        if (doit) {
+            mhA.invoke(a);
+        }
+    }
+
+    void m2(B b) throws Throwable {
+        mhB.invoke(b);
+    }
+
+    static public void main(String[] args) {
+        TestUnexpectedProfilingMismatch tih = new TestUnexpectedProfilingMismatch();
+        A a = new A();
+        B b = new B();
+        try {
+            for (int i = 0; i < 256 - 1; i++) {
+                tih.m1(a, true);
+            }
+            // Will trigger the compilation but will also run once
+            // more interpreted with a non null MDO which it will
+            // update. Make it skip the body of the method.
+            tih.m1(a, false);
+            // Compile this one as well and do the profiling
+            for (int i = 0; i < 256; i++) {
+                tih.m2(b);
+            }
+            // Will run and see a conflict
+            tih.m1(a, true);
+        } catch(Throwable ex) {
+            ex.printStackTrace();
+        }
+        System.out.println("TEST PASSED");
+    }
+}