1 /*
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   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 6426034
  27  *  @summary Instance filter doesn't filter event if it occurs in native method
  28  *
  29  *  @author Keith McGuigan
  30  *
  31  *  @library scaffold
  32  *  @run build JDIScaffold VMConnection
  33  *  @compile -XDignore.symbol.file NativeInstanceFilterTarg.java
  34  *  @run main/othervm NativeInstanceFilter
  35  */
  36 
  37 /*
  38  *  This test tests instance filters for events generated from a native method
  39  */
  40 
  41 import java.util.*;
  42 import com.sun.jdi.*;
  43 import com.sun.jdi.event.*;
  44 import com.sun.jdi.request.*;
  45 
  46 public class NativeInstanceFilter extends JDIScaffold {
  47 
  48     static int unfilteredEvents = 0;
  49 
  50     public static void main(String args[]) throws Exception {
  51         new NativeInstanceFilter().startTests();
  52     }
  53 
  54     public NativeInstanceFilter() {
  55         super();
  56     }
  57 
  58     static EventRequestManager requestManager = null;
  59     static MethodExitRequest request = null;
  60 
  61     private void listen() {
  62         TargetAdapter adapter = new TargetAdapter() {
  63             EventSet set = null;
  64             ObjectReference instance = null;
  65 
  66             public boolean eventSetReceived(EventSet set) {
  67                 this.set = set;
  68                 return false;
  69             }
  70 
  71             public boolean methodExited(MethodExitEvent event) {
  72                 String name = event.method().name();
  73                 if (instance == null && name.equals("latch")) {
  74                     // Grab the instance (return value) and set up as filter
  75                     System.out.println("Setting up instance filter");
  76                     instance = (ObjectReference)event.returnValue();
  77                     requestManager.deleteEventRequest(request);
  78                     request = requestManager.createMethodExitRequest();
  79                     request.addInstanceFilter(instance);
  80                     request.enable();
  81                 } else if (instance != null && name.equals("intern")) {
  82                     // If not for the filter, this will be called twice
  83                     System.out.println("method exit event (String.intern())");
  84                     ++unfilteredEvents;
  85                 }
  86                 set.resume();
  87                 return false;
  88             }
  89         };
  90         addListener(adapter);
  91     }
  92 
  93 
  94     protected void runTests() throws Exception {
  95         String[] args = new String[2];
  96         args[0] = "-connect";
  97         args[1] = "com.sun.jdi.CommandLineLaunch:main=NativeInstanceFilterTarg";
  98 
  99         connect(args);
 100         waitForVMStart();
 101 
 102         // VM has started, but hasn't started running the test program yet.
 103         requestManager = vm().eventRequestManager();
 104         ReferenceType referenceType =
 105             resumeToPrepareOf("NativeInstanceFilterTarg").referenceType();
 106 
 107         request = requestManager.createMethodExitRequest();
 108         request.enable();
 109 
 110         listen();
 111 
 112         vm().resume();
 113 
 114         waitForVMDeath();
 115 
 116         if (unfilteredEvents != 1) {
 117             throw new Exception(
 118                 "Failed: Event from native frame not filtered out.");
 119         }
 120         System.out.println("Passed: Event filtered out.");
 121     }
 122 }