1 /*

     2  * Copyright 2001-2002 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    20  * CA 95054 USA or visit www.sun.com if you need additional information or

    21  * have any 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  *  @run build TestScaffold VMConnection TargetListener TargetAdapter

    32  *  @run compile -g FieldWatchpoints.java

    33  *  @run main/othervm FieldWatchpoints

    34  */

    35 import com.sun.jdi.*;

    36 import com.sun.jdi.event.*;

    37 import java.util.*;

    38 

    39 class A extends Object {

    40     public static int aField = 0;

    41 }

    42 

    43 class B extends A {

    44 }

    45 

    46 class FieldWatchpointsDebugee {

    47     public void update (){

    48         /* test direct modify access by other class */

    49         A.aField = 7;

    50         B.aField = 11;

    51     }

    52     public void access (){

    53         /* test direct read access by other class */

    54         System.out.print("aField is: ");

    55         System.out.println(A.aField);

    56     }

    57     public static void main(String[] args){

    58         A testA = new A();

    59         B testB = new B();

    60         FieldWatchpointsDebugee my =

    61             new FieldWatchpointsDebugee();

    62         my.update();

    63         my.access();

    64     }

    65 }

    66 

    67 public class FieldWatchpoints extends TestScaffold {

    68     boolean fieldModifyReported = false;

    69     boolean fieldAccessReported = false;

    70 

    71     FieldWatchpoints (String args[]) {

    72         super(args);

    73     }

    74 

    75     public static void main(String[] args)      throws Exception {

    76         new FieldWatchpoints (args).startTests();

    77     }

    78 

    79     protected void runTests() throws Exception {

    80         startTo("FieldWatchpointsDebugee", "update", "()V");

    81 

    82         try {

    83             /*

    84              * Set a modification watch on aField

    85              */

    86             ReferenceType rt = findReferenceType("A");

    87             String fieldName = "aField";

    88             Field field = rt.fieldByName(fieldName);

    89             if (field == null) {

    90                 throw new Exception ("Field name not found: " + fieldName);

    91             }

    92             com.sun.jdi.request.EventRequest req =

    93                eventRequestManager().createModificationWatchpointRequest(field);

    94             req.setSuspendPolicy(com.sun.jdi.request.EventRequest.SUSPEND_ALL);

    95             req.enable();

    96 

    97             /*

    98              * Set an access watch on aField

    99              */

   100             req =

   101                eventRequestManager().createAccessWatchpointRequest(field);

   102             req.setSuspendPolicy(com.sun.jdi.request.EventRequest.SUSPEND_ALL);

   103             req.enable();

   104 

   105             addListener (new TargetAdapter() {

   106                     EventSet lastSet = null;

   107 

   108                     public void eventSetReceived(EventSet set) {

   109                         lastSet = set;

   110                     }

   111                     public void fieldModified(ModificationWatchpointEvent event) {

   112                         System.out.println("Field modified: " + event);

   113                         fieldModifyReported = true;

   114                         lastSet.resume();

   115                     }

   116                     public void fieldAccessed(AccessWatchpointEvent event) {

   117                         System.out.println("Field accessed: " + event);

   118                         fieldAccessReported = true;

   119                         lastSet.resume();

   120                     }

   121                 });

   122 

   123             vm().resume();

   124 

   125         } catch (Exception ex){

   126             ex.printStackTrace();

   127             testFailed = true;

   128         } finally {

   129             // Allow application to complete and shut down

   130             resumeToVMDisconnect();

   131         }

   132         if (!testFailed && fieldModifyReported && fieldAccessReported) {

   133             System.out.println("FieldWatchpoints: passed");

   134         } else {

   135             throw new Exception("FieldWatchpoints: failed");

   136         }

   137     }

   138 }