1 /*
 2  * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
 3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 4  *
 5  * This code is free software; you can redistribute it and/or modify it
 6  * under the terms of the GNU General Public License version 2 only, as
 7  * published by the Free Software Foundation.
 8  *
 9  * This code is distributed in the hope that it will be useful, but WITHOUT
10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12  * version 2 for more details (a copy is included in the LICENSE file that
13  * accompanied this code).
14  *
15  * You should have received a copy of the GNU General Public License version
16  * 2 along with this work; if not, write to the Free Software Foundation,
17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18  *
19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20  * or visit www.oracle.com if you need additional information or have any
21  * questions.
22  */
23 
24 /**
25  * @test
26  * @summary Test withfield behavior at runtime.
27  * @compile -XDenablePrimitiveClasses WithFieldRuntimeTest.java
28  * @run main/othervm -XX:+EnableValhalla -XX:+EnablePrimitiveClasses WithFieldRuntimeTest
29  */
30 
31 public final primitive class WithFieldRuntimeTest {
32 
33     final int x;
34 
35     WithFieldRuntimeTest(int x) {
36         this.x = x;
37     }
38 
39     static void foo(WithFieldRuntimeTest x) {
40         if (x.x != 0)
41             throw new AssertionError("Expected default value, found something else.");
42         x = new WithFieldRuntimeTest(20);
43         if (x.x != 20)
44             throw new AssertionError("Expected updated value, found something else.");
45     }
46 
47     public static void main(String [] args) {
48         WithFieldRuntimeTest x = WithFieldRuntimeTest.default;
49         foo(x);
50     }
51 }