1 /*
  2  * Copyright (c) 2003, 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 import java.io.PrintStream;
 24 
 25 /*
 26  * @test
 27  *
 28  * @summary converted from VM Testbase nsk/jvmti/FieldAccess/fieldacc004.
 29  * VM Testbase keywords: [quick, jpda, jvmti, noras]
 30  * VM Testbase readme:
 31  * DESCRIPTION
 32  *     The test exercise JVMTI event callback function FieldAccess.
 33  *     The test sets access watches on fields which are defined in
 34  *     superinterface, then triggers access watch events on these fields
 35  *     and checks if clazz, method, location, field_clazz, field and
 36  *     object parameters of the function contain the expected values.
 37  * COMMENTS
 38  *     Ported from JVMDI.
 39  *
 40  * @library /test/lib
 41  * @compile --enable-preview -source ${jdk.version} fieldacc04.java
 42  * @run main/othervm/native --enable-preview -agentlib:fieldacc04 fieldacc04
 43  */
 44 
 45 
 46 public class fieldacc04 {
 47 
 48     final static int JCK_STATUS_BASE = 95;
 49 
 50     static {
 51         try {
 52             System.loadLibrary("fieldacc04");
 53         } catch (UnsatisfiedLinkError ule) {
 54             System.err.println("Could not load fieldacc04 library");
 55             System.err.println("java.library.path:"
 56                 + System.getProperty("java.library.path"));
 57             throw ule;
 58         }
 59     }
 60 
 61     static volatile int result;
 62     native static void getReady();
 63     native static int check();
 64 
 65     public static void main(String args[]) {
 66         testKernel();
 67         testVirtual();
 68     }
 69     public static void testVirtual() {
 70         Thread thread = Thread.startVirtualThread(() -> {
 71             getReady();
 72             fieldacc04a t = new fieldacc04a();
 73             t.run();
 74             result = check();
 75         });
 76         try {
 77             thread.join();
 78         } catch (InterruptedException e) {
 79             throw new RuntimeException(e);
 80         }
 81 
 82         if (result != 0) {
 83             throw new RuntimeException("check failed with result " + result);
 84         }
 85     }
 86     public static void testKernel() {
 87         getReady();
 88         fieldacc04a t = new fieldacc04a();
 89         t.run();
 90         result = check();
 91         if (result != 0) {
 92             throw new RuntimeException("check failed with result " + result);
 93         }
 94     }
 95 }
 96 
 97 interface fieldacc04i {
 98     static Object interfaceObject = new Object();
 99     static int interfaceArrInt[] = {1, 2};
100 }
101 
102 class fieldacc04a implements fieldacc04i {
103     public int run() {
104         int i = 0;
105         if (interfaceObject == this) i++;
106         if (interfaceArrInt[0] == 3) i++;
107         return i;
108     }
109 }