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 package compiler.jvmci.meta;
  24 
  25 import java.lang.reflect.Field;
  26 import jdk.internal.vm.annotation.Stable;
  27 import jdk.vm.ci.hotspot.HotSpotResolvedJavaField;
  28 import jdk.vm.ci.meta.MetaAccessProvider;
  29 import jdk.vm.ci.meta.ResolvedJavaField;
  30 import jdk.vm.ci.runtime.JVMCI;
  31 
  32 /**
  33  * @test
  34  * @library /testlibrary /test/lib /
  35  * @compile StableFieldTest.java
  36  * @run main ClassFileInstaller compiler.jvmci.meta.StableFieldTest
  37  * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI -Xbootclasspath/a:. compiler.jvmci.meta.StableFieldTest
  38  */
  39 public class StableFieldTest {
  40 
  41     @Stable static int myStaticField = 5;
  42     @Stable int myInstanceField = 10;
  43 
  44     public static void main(String[] args) throws Throwable {
  45         MetaAccessProvider metaAccess = JVMCI.getRuntime().getHostJVMCIBackend().getMetaAccess();
  46         for (String name : new String[] {"myStaticField", "myInstanceField"}) {
  47             java.lang.reflect.Field javaField = StableFieldTest.class.getDeclaredField(name);
  48             HotSpotResolvedJavaField field = (HotSpotResolvedJavaField) metaAccess.lookupJavaField(javaField);
  49             if (!field.isStable()) {
  50                 throw new AssertionError("Expected HotSpotResolvedJavaField.isStable() to return true for " + javaField);
  51             }
  52         }
  53     }
  54 }