--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/hotspot/jtreg/compiler/intrinsics/unsafe/TestUnsafeMismatchedArrayFieldAccess.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,65 @@
+/*
+ * Copyright (c) 2015, 2016, 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 8142386
+ * @summary Unsafe access to an array is wrongly marked as mismatched
+ * @modules java.base/jdk.internal.misc
+ *
+ * @run main/othervm -XX:-UseOnStackReplacement -XX:-BackgroundCompilation -XX:-TieredCompilation
+ *      compiler.intrinsics.unsafe.TestUnsafeMismatchedArrayFieldAccess
+ */
+
+package compiler.intrinsics.unsafe;
+
+import jdk.internal.misc.Unsafe;
+
+public class TestUnsafeMismatchedArrayFieldAccess {
+
+    private static final Unsafe UNSAFE = Unsafe.getUnsafe();
+
+    static {
+        try {
+            array_offset = UNSAFE.objectFieldOffset(TestUnsafeMismatchedArrayFieldAccess.class.getDeclaredField("array"));
+        }
+        catch (Exception e) {
+            throw new AssertionError(e);
+        }
+    }
+
+    int[] array;
+    static final long array_offset;
+
+    void m() {
+        UNSAFE.getObject(this, array_offset);
+    }
+
+    static public void main(String[] args) {
+        TestUnsafeMismatchedArrayFieldAccess test = new TestUnsafeMismatchedArrayFieldAccess();
+
+        for (int i = 0; i < 20000; i++) {
+            test.m();
+        }
+    }
+}