1 /* 2 * Copyright (c) 2001, 2015, 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 4408582 27 * @summary Test fix for: JDWP: WatchpointEvents outside of class filtered out 28 * 29 * @author Tim Bell 30 * 31 * @modules jdk.jdi 32 * @run build TestScaffold VMConnection TargetListener TargetAdapter 33 * @run compile -g FieldWatchpoints.java 34 * @run driver FieldWatchpoints 35 */ 36 import com.sun.jdi.*; 37 import com.sun.jdi.event.*; 38 import java.util.*; 39 40 class A extends Object { 41 public static int aField = 0; 42 } 43 44 class B extends A { 45 } 46 47 class FieldWatchpointsDebugee { 48 public void update (){ 49 /* test direct modify access by other class */ 50 A.aField = 7; 51 B.aField = 11; 52 } 53 public void access (){ 54 /* test direct read access by other class */ 55 System.out.print("aField is: "); 56 System.out.println(A.aField); 57 } 58 public static void main(String[] args){ 59 A testA = new A(); 60 B testB = new B(); 61 FieldWatchpointsDebugee my = 62 new FieldWatchpointsDebugee(); 63 my.update(); 64 my.access(); 65 } 66 } 67 68 public class FieldWatchpoints extends TestScaffold { 69 boolean fieldModifyReported = false; 70 boolean fieldAccessReported = false; 71 72 FieldWatchpoints (String args[]) { 73 super(args); 74 } 75 76 public static void main(String[] args) throws Exception { 77 new FieldWatchpoints (args).startTests(); 78 } 79 80 protected void runTests() throws Exception { 81 startTo("FieldWatchpointsDebugee", "update", "()V"); 82 83 try { 84 /* 85 * Set a modification watch on aField 86 */ 87 ReferenceType rt = findReferenceType("A"); 88 String fieldName = "aField"; 89 Field field = rt.fieldByName(fieldName); 90 if (field == null) { 91 throw new Exception ("Field name not found: " + fieldName); 92 } 93 com.sun.jdi.request.EventRequest req = 94 eventRequestManager().createModificationWatchpointRequest(field); 95 req.setSuspendPolicy(com.sun.jdi.request.EventRequest.SUSPEND_ALL); 96 req.enable(); 97 98 /* 99 * Set an access watch on aField 100 */ 101 req = 102 eventRequestManager().createAccessWatchpointRequest(field); 103 req.setSuspendPolicy(com.sun.jdi.request.EventRequest.SUSPEND_ALL); 104 req.enable(); 105 106 addListener (new TargetAdapter() { 107 EventSet lastSet = null; 108 109 public void eventSetReceived(EventSet set) { 110 lastSet = set; 111 } 112 public void fieldModified(ModificationWatchpointEvent event) { 113 System.out.println("Field modified: " + event); 114 fieldModifyReported = true; 115 lastSet.resume(); 116 } 117 public void fieldAccessed(AccessWatchpointEvent event) { 118 System.out.println("Field accessed: " + event); 119 fieldAccessReported = true; 120 lastSet.resume(); 121 } 122 }); 123 124 vm().resume(); 125 126 } catch (Exception ex){ 127 ex.printStackTrace(); 128 testFailed = true; 129 } finally { 130 // Allow application to complete and shut down 131 resumeToVMDisconnect(); 132 } 133 if (!testFailed && fieldModifyReported && fieldAccessReported) { 134 System.out.println("FieldWatchpoints: passed"); 135 } else { 136 throw new Exception("FieldWatchpoints: failed"); 137 } 138 } 139 }