StableFieldTest.java revision 12651:6ef01bd40ce2 
1/*
2 * Copyright (c) 2015, 2016, 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 * @bug 8151664
27 * @requires vm.jvmci
28 * @library /test/lib /
29 * @modules java.base/jdk.internal.misc
30 * @modules java.base/jdk.internal.vm.annotation
31 *          jdk.internal.vm.ci/jdk.vm.ci.hotspot
32 *          jdk.internal.vm.ci/jdk.vm.ci.meta
33 *          jdk.internal.vm.ci/jdk.vm.ci.runtime
34 *
35 * @compile StableFieldTest.java
36 * @run driver ClassFileInstaller compiler.jvmci.meta.StableFieldTest
37 * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI -Xbootclasspath/a:. compiler.jvmci.meta.StableFieldTest
38 */
39
40package compiler.jvmci.meta;
41
42import jdk.internal.vm.annotation.Stable;
43import jdk.vm.ci.hotspot.HotSpotResolvedJavaField;
44import jdk.vm.ci.meta.MetaAccessProvider;
45import jdk.vm.ci.runtime.JVMCI;
46
47public class StableFieldTest {
48
49    @Stable static int myStaticField = 5;
50    @Stable int myInstanceField = 10;
51
52    public static void main(String[] args) throws Throwable {
53        MetaAccessProvider metaAccess = JVMCI.getRuntime().getHostJVMCIBackend().getMetaAccess();
54        for (String name : new String[] {"myStaticField", "myInstanceField"}) {
55            java.lang.reflect.Field javaField = StableFieldTest.class.getDeclaredField(name);
56            HotSpotResolvedJavaField field = (HotSpotResolvedJavaField) metaAccess.lookupJavaField(javaField);
57            if (!field.isStable()) {
58                throw new AssertionError("Expected HotSpotResolvedJavaField.isStable() to return true for " + javaField);
59            }
60        }
61    }
62}
63