122 lines
4.1 KiB
Java
122 lines
4.1 KiB
Java
/*
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* Copyright (c) 2003, 2018, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package nsk.jvmti.ObjectFree;
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import java.io.*;
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import nsk.share.*;
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import nsk.share.jvmti.*;
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/**
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* This test exercises the JVMTI event <code>ObjectFree</code>.
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* <br>It verifies that the events are only sent for tagged objects.
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* The test also checks that the JVMTI raw monitor, memory management,
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* and environment local storage functions can be used during processing
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* this event.<p>
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* The test works as follows. An array of instances of the special
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* class <code>objfree002t</code> is used for testing as follows.
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* The objects with odd array indexes are skipped from tagging, all
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* other ones are tagged. Then, after nulling the objects and GC() call,
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* all received <code>ObjectFree</code> events, if so, should have only
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* the even tag numbers.<br>
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* If there are no ObjectFree events, the test passes with appropriate
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* message.
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*/
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public class objfree002 {
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/**
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* number of objects to be created
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*/
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private final static int OBJ_NUM = 10;
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/**
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* Object to be tagged
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*/
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objfree002t[] objToTag = new objfree002t[OBJ_NUM];
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private Log log;
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static {
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try {
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System.loadLibrary("objfree002");
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} catch (UnsatisfiedLinkError ule) {
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System.err.println("Could not load \"objfree002\" library");
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System.err.println("java.library.path:"
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+ System.getProperty("java.library.path"));
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throw ule;
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}
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}
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native int check();
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native void setTag(objfree002t obj, int num);
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public static void main(String[] argv) {
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argv = nsk.share.jvmti.JVMTITest.commonInit(argv);
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// produce JCK-like exit status
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System.exit(run(argv, System.out) + Consts.JCK_STATUS_BASE);
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}
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public static int run(String argv[], PrintStream out) {
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return new objfree002().runThis(argv, out);
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}
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private int runThis(String argv[], PrintStream out) {
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ArgumentHandler argHandler = new ArgumentHandler(argv);
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log = new Log(out, argHandler);
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String args[] = argHandler.getArguments();
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if (args.length <= 0)
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throw new Failure("TEST BUG: number of GC() calls is not specified");
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try {
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int callNum = Integer.parseInt(args[0]);
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log.display("Creating " + OBJ_NUM
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+ " instance(s) of the tested class ...\n");
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for (int i=0; i<OBJ_NUM; i++) {
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objToTag[i] = new objfree002t();
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setTag(objToTag[i], i); // tagging some of the objects
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}
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log.display("\nCreating " + OBJ_NUM
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+ " instance(s) done\n");
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log.display("Freeing up the instance(s) ...\n");
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for (int i=0; i<OBJ_NUM; i++)
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objToTag[i] = null;
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log.display("Calling GC() " + callNum
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+ " times ...\n");
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for (int i=0; i<callNum; i++)
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System.gc();
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log.display("Calling GC() done\n");
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return check();
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} catch(Exception e) {
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e.printStackTrace();
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throw new Failure("TEST FAILURE: caught unexpected "
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+ e);
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}
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}
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}
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