1 /*
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   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
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   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  *
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  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
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  23 
  24 /**
  25  * @test
  26  * @bug 6426034
  27  * @summary Instance filter doesn't filter event if it occurs in native method
  28  * @author Keith McGuigan
  29  *
  30  * @run build JDIScaffold VMConnection
  31  * @compile -XDignore.symbol.file NativeInstanceFilterTarg.java
  32  * @run driver NativeInstanceFilter
  33  */
  34 
  35 /*
  36  *  This test tests instance filters for events generated from a native method
  37  */
  38 
  39 import java.util.*;
  40 import com.sun.jdi.*;
  41 import com.sun.jdi.event.*;
  42 import com.sun.jdi.request.*;
  43 
  44 public class NativeInstanceFilter extends JDIScaffold {
  45 
  46     static int unfilteredEvents = 0;
  47 
  48     public static void main(String args[]) throws Exception {
  49         new NativeInstanceFilter().startTests();
  50     }
  51 
  52     public NativeInstanceFilter() {
  53         super();
  54     }
  55 
  56     static EventRequestManager requestManager = null;
  57     static MethodExitRequest request = null;
  58     static ThreadReference mainThread = null;
  59 
  60     private void listen() {
  61         TargetAdapter adapter = new TargetAdapter() {
  62             EventSet set = null;
  63             ObjectReference instance = null;
  64 
  65             public boolean eventSetReceived(EventSet set) {
  66                 this.set = set;
  67                 return false;
  68             }
  69 
  70             public boolean methodExited(MethodExitEvent event) {
  71                 String name = event.method().name();
  72                 if (instance == null && name.equals("latch")) {
  73                     // Grab the instance (return value) and set up as filter
  74                     System.out.println("Setting up instance filter");
  75                     instance = (ObjectReference)event.returnValue();
  76                     requestManager.deleteEventRequest(request);
  77                     request = requestManager.createMethodExitRequest();
  78                     request.addInstanceFilter(instance);
  79                     request.addThreadFilter(mainThread);
  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         ClassPrepareEvent e = resumeToPrepareOf("NativeInstanceFilterTarg");
 105         ReferenceType referenceType = e.referenceType();
 106         mainThread = e.thread();
 107 
 108         request = requestManager.createMethodExitRequest();
 109         request.addThreadFilter(mainThread);
 110         request.enable();
 111 
 112         listen();
 113 
 114         vm().resume();
 115 
 116         waitForVMDeath();
 117 
 118         if (unfilteredEvents != 1) {
 119             throw new Exception(
 120                 "Failed: Event from native frame not filtered out.");
 121         }
 122         System.out.println("Passed: Event filtered out.");
 123     }
 124 }