1 /*
   2  * Copyright (c) 2010, 2011, 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 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     static ThreadReference mainThread = null;
  61 
  62     private void listen() {
  63         TargetAdapter adapter = new TargetAdapter() {
  64             EventSet set = null;
  65             ObjectReference instance = null;
  66 
  67             public boolean eventSetReceived(EventSet set) {
  68                 this.set = set;
  69                 return false;
  70             }
  71 
  72             public boolean methodExited(MethodExitEvent event) {
  73                 String name = event.method().name();
  74                 if (instance == null && name.equals("latch")) {
  75                     // Grab the instance (return value) and set up as filter
  76                     System.out.println("Setting up instance filter");
  77                     instance = (ObjectReference)event.returnValue();
  78                     requestManager.deleteEventRequest(request);
  79                     request = requestManager.createMethodExitRequest();
  80                     request.addInstanceFilter(instance);
  81                     request.addThreadFilter(mainThread);
  82                     request.enable();
  83                 } else if (instance != null && name.equals("intern")) {
  84                     // If not for the filter, this will be called twice
  85                     System.out.println("method exit event (String.intern())");
  86                     ++unfilteredEvents;
  87                 }
  88                 set.resume();
  89                 return false;
  90             }
  91         };
  92         addListener(adapter);
  93     }
  94 
  95 
  96     protected void runTests() throws Exception {
  97         String[] args = new String[2];
  98         args[0] = "-connect";
  99         args[1] = "com.sun.jdi.CommandLineLaunch:main=NativeInstanceFilterTarg";
 100 
 101         connect(args);
 102         waitForVMStart();
 103 
 104         // VM has started, but hasn't started running the test program yet.
 105         requestManager = vm().eventRequestManager();
 106         ClassPrepareEvent e = resumeToPrepareOf("NativeInstanceFilterTarg");
 107         ReferenceType referenceType = e.referenceType();
 108         mainThread = e.thread();
 109 
 110         request = requestManager.createMethodExitRequest();
 111         request.addThreadFilter(mainThread);
 112         request.enable();
 113 
 114         listen();
 115 
 116         vm().resume();
 117 
 118         waitForVMDeath();
 119 
 120         if (unfilteredEvents != 1) {
 121             throw new Exception(
 122                 "Failed: Event from native frame not filtered out.");
 123         }
 124         System.out.println("Passed: Event filtered out.");
 125     }
 126 }