--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/runtime/Unsafe/FieldOffset.java Fri Jan 23 11:44:21 2015 -0800
@@ -0,0 +1,65 @@
+/*
+ * Copyright (c) 2015, 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
+ * @summary Verifies the behaviour of Unsafe.fieldOffset
+ * @library /testlibrary
+ * @run main FieldOffset
+ */
+
+import java.lang.reflect.Field;
+import com.oracle.java.testlibrary.*;
+import sun.misc.Unsafe;
+import java.lang.reflect.*;
+import static com.oracle.java.testlibrary.Asserts.*;
+
+public class FieldOffset {
+ public static void main(String args[]) throws Exception {
+ Unsafe unsafe = Utils.getUnsafe();
+ Field fields[] = Test.class.getDeclaredFields();
+
+ for (int i = 0; i < fields.length; i++) {
+ int offset = unsafe.fieldOffset(fields[i]);
+ // Ensure we got a valid offset value back
+ assertNotEquals(offset, unsafe.INVALID_FIELD_OFFSET);
+
+ // Make sure the field offset is unique
+ for (int j = 0; j < i; j++) {
+ assertNotEquals(offset, unsafe.fieldOffset(fields[j]));
+ }
+ }
+ }
+
+ class Test {
+ boolean booleanField;
+ byte byteField;
+ char charField;
+ double doubleField;
+ float floatField;
+ int intField;
+ long longField;
+ Object objectField;
+ short shortField;
+ }
+}