76 lines
2.8 KiB
Java
76 lines
2.8 KiB
Java
/*
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* Copyright (c) 2003, 2021, 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 4893489
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* @summary Subject.doAs not thread-safe against changes to principals
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*/
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import java.security.Principal;
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import java.util.Collections;
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import java.util.Set;
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import java.util.concurrent.Callable;
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import javax.security.auth.Subject;
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import javax.security.auth.x500.X500Principal;
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public class Synch {
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static volatile boolean finished = false;
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public static void main(String[] args) {
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Subject subject = new Subject();
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final Set principals = subject.getPrincipals();
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principals.add(new X500Principal("CN=Alice"));
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new Thread() {
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public void run() {
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Principal last = new X500Principal("CN=Bob");
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for (int i = 0; !finished; i++) {
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Principal next = new X500Principal("CN=Bob" + i);
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principals.add(next);
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principals.remove(last);
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last = next;
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}
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}
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}.start();
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for (int i = 0; i < 1000; i++) {
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Subject.callAs(
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subject,
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new Callable() {
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public Object call() {
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return Subject.callAs(
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new Subject(true,
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Collections.singleton(
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new X500Principal("CN=Claire")),
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Collections.EMPTY_SET,
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Collections.EMPTY_SET),
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new Callable() {
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public Object call() {
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return null;
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}
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});
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}
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});
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}
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finished = true;
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}
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}
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