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