148 lines
4.7 KiB
Java
148 lines
4.7 KiB
Java
/*
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* Copyright (c) 1999, 2024, 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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/*
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* @test
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* @bug 4162583 7054918 8130181 8028127
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* @library /test/lib ../testlibrary
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* @summary Make sure Provider api implementations are synchronized properly
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*/
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import java.security.*;
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import jdk.test.lib.Asserts;
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public class SynchronizedAccess {
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public static void main(String[] args) throws Exception {
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ProvidersSnapshot snapshot = ProvidersSnapshot.create();
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try {
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main0(args);
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} finally {
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snapshot.restore();
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}
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}
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public static void main0(String[] args) throws Exception {
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var providersCountBefore = Security.getProviders().length;
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AccessorThread[] acc = new AccessorThread[200];
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for (int i = 0; i < acc.length; i++) {
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acc[i] = new AccessorThread("thread" + i);
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}
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for (int i = 0; i < acc.length; i++) {
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acc[i].start();
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}
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for (int i = 0; i < acc.length; i++) {
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acc[i].join();
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}
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var providersCountAfter = Security.getProviders().length;
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Asserts.assertEquals(providersCountBefore, providersCountAfter);
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}
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static class AccessorThread extends Thread {
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public AccessorThread(String str) {
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super(str);
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}
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public void run() {
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Provider[] provs = new Provider[10];
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for (int i = 0; i < provs.length; i++) {
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provs[i] = new MyProvider("name" + i, "1", "test");
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}
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int rounds = 20;
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while (rounds-- > 0) {
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for (int i = 0; i < provs.length; i++) {
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// Might install (>=0) or not (-1) if already installed
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Security.addProvider(provs[i]);
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Thread.yield();
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}
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try {
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Signature.getInstance("sigalg");
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Thread.yield();
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} catch (NoSuchAlgorithmException nsae) {
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// All providers may have been deregistered. Ok.
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}
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for (int i = 0; i < provs.length; i++) {
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// Might or might not remove (silent return)
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Security.removeProvider("name" + i);
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Thread.yield();
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}
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} // while
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}
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public static final class MyProvider extends Provider {
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public MyProvider(String name, String version, String info) {
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super(name, version, info);
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put("Signature.sigalg", SigImpl.class.getName());
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}
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}
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public static final class SigImpl extends Signature {
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public SigImpl() {
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super(null);
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}
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@Override
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protected void engineInitVerify(PublicKey publicKey) {
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}
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@Override
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protected void engineInitSign(PrivateKey privateKey) {
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}
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@Override
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protected void engineUpdate(byte b) {
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}
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@Override
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protected void engineUpdate(byte[] b, int off, int len) {
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}
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@Override
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protected byte[] engineSign() {
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return new byte[0];
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}
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@Override
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protected boolean engineVerify(byte[] sigBytes) {
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return false;
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}
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@Override
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protected void engineSetParameter(String param, Object value)
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throws InvalidParameterException {
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}
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@Override
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protected Object engineGetParameter(String param)
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throws InvalidParameterException {
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return null;
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}
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}
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}
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} |