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test/serviceability/dcmd/gc/FinalizerInfoTest.java

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   1 /*
   2  * Copyright (c) 2015, 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 import org.testng.annotations.Test;
  25 import org.testng.Assert;
  26 
  27 import java.util.concurrent.TimeUnit;
  28 import java.util.concurrent.locks.Condition;
  29 import java.util.concurrent.locks.ReentrantLock;
  30 
  31 import jdk.test.lib.OutputAnalyzer;
  32 import jdk.test.lib.dcmd.CommandExecutor;
  33 import jdk.test.lib.dcmd.PidJcmdExecutor;
  34 
  35 /*
  36  * @test
  37  * @summary
  38  * @library /testlibrary


  39  * @build jdk.test.lib.*
  40  * @build jdk.test.lib.dcmd.*
  41  * @run testng FinalizerInfoTest
  42  */
  43 public class FinalizerInfoTest {
  44     static ReentrantLock lock = new ReentrantLock();
  45     static volatile int wasInitialized = 0;
  46     static volatile int wasTrapped = 0;
  47     static final String cmd = "GC.finalizer_info";
  48     static final int objectsCount = 1000;
  49 
  50     class MyObject {
  51         public MyObject() {
  52             // Make sure object allocation/deallocation is not optimized out
  53             wasInitialized += 1;
  54         }
  55 
  56         protected void finalize() {
  57             // Trap the object in a finalization queue
  58             wasTrapped += 1;


   1 /*
   2  * Copyright (c) 2015, 2016, 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 import org.testng.annotations.Test;
  25 import org.testng.Assert;
  26 
  27 import java.util.concurrent.TimeUnit;
  28 import java.util.concurrent.locks.Condition;
  29 import java.util.concurrent.locks.ReentrantLock;
  30 
  31 import jdk.test.lib.OutputAnalyzer;
  32 import jdk.test.lib.dcmd.CommandExecutor;
  33 import jdk.test.lib.dcmd.PidJcmdExecutor;
  34 
  35 /*
  36  * @test
  37  * @summary
  38  * @library /testlibrary
  39  * @modules java.xml
  40  *          java.management
  41  * @build jdk.test.lib.*
  42  * @build jdk.test.lib.dcmd.*
  43  * @run testng FinalizerInfoTest
  44  */
  45 public class FinalizerInfoTest {
  46     static ReentrantLock lock = new ReentrantLock();
  47     static volatile int wasInitialized = 0;
  48     static volatile int wasTrapped = 0;
  49     static final String cmd = "GC.finalizer_info";
  50     static final int objectsCount = 1000;
  51 
  52     class MyObject {
  53         public MyObject() {
  54             // Make sure object allocation/deallocation is not optimized out
  55             wasInitialized += 1;
  56         }
  57 
  58         protected void finalize() {
  59             // Trap the object in a finalization queue
  60             wasTrapped += 1;


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