108 lines
3.4 KiB
Java
108 lines
3.4 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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// THIS TEST IS LINE NUMBER SENSITIVE
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package nsk.jvmti.RedefineClasses;
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import java.io.*;
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public class redefclass016 {
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final static int FAILED = 2;
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final static int JCK_STATUS_BASE = 95;
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static {
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try {
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System.loadLibrary("redefclass016");
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} catch (UnsatisfiedLinkError ule) {
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System.err.println("Could not load redefclass016 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 static void getReady(Class cls, byte bytes[], int magic, int line);
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native static int check();
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public static void main(String args[]) {
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args = nsk.share.jvmti.JVMTITest.commonInit(args);
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// produce JCK-like exit status.
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System.exit(run(args, System.out) + JCK_STATUS_BASE);
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}
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public static int run(String args[], PrintStream out) {
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// Read data from class
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byte[] bytes;
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String fileName =
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redefclass016a.class.getName().replace('.', File.separatorChar) +
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".class";
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try {
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ClassLoader cl = redefclass016.class.getClassLoader();
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InputStream in = cl.getSystemResourceAsStream(fileName);
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if (in == null) {
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out.println("# Class file \"" + fileName + "\" not found");
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return FAILED;
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}
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bytes = new byte[in.available()];
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in.read(bytes);
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in.close();
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} catch (Exception ex) {
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out.println("# Unexpected exception while reading class file:");
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out.println("# " + ex);
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return FAILED;
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}
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redefclass016a thr = new redefclass016a();
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getReady(redefclass016a.class, bytes, thr.MAGIC_NUMBER, thr.LINE_NUMBER);
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thr.start();
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try {
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thr.join();
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} catch (InterruptedException e) {
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throw new Error("Unexpected " + e);
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}
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return check();
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}
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}
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class redefclass016a extends Thread {
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final static int LOOP_COUNT = 8;
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final static int MAGIC_NUMBER = 0x12345678;
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final static int LINE_NUMBER = 100;
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public void run() {
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int localVar = 0;
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for (int i = 0; i < LOOP_COUNT; i++) {
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localVar = volatileMethod(); // LINE_NUMBER
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}
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}
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private int volatileMethod() {
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return MAGIC_NUMBER;
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}
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}
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