1 /* 2 * Copyright (c) 2010, 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 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 }