| /* |
| * Copyright (c) 1999, 2016, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @bug 4162583 7054918 8130181 |
| * @library ../testlibrary |
| * @summary Make sure Provider api implementations are synchronized properly |
| */ |
| |
| import java.security.*; |
| |
| public class SynchronizedAccess { |
| |
| public static void main(String[] args) throws Exception { |
| ProvidersSnapshot snapshot = ProvidersSnapshot.create(); |
| try { |
| main0(args); |
| } finally { |
| snapshot.restore(); |
| } |
| } |
| |
| public static void main0(String[] args) throws Exception { |
| AccessorThread[] acc = new AccessorThread[200]; |
| for (int i=0; i < acc.length; i++) |
| acc[i] = new AccessorThread("thread"+i); |
| for (int i=0; i < acc.length; i++) |
| acc[i].start(); |
| for (int i=0; i < acc.length; i++) |
| acc[i].join(); |
| } |
| } |
| |
| class AccessorThread extends Thread { |
| |
| public AccessorThread(String str) { |
| super(str); |
| } |
| |
| public void run() { |
| Provider[] provs = new Provider[10]; |
| for (int i=0; i < provs.length; i++) |
| provs[i] = new MyProvider("name"+i, "1", "test"); |
| |
| int rounds = 20; |
| while (rounds-- > 0) { |
| try { |
| for (int i=0; i<provs.length; i++) { |
| Security.addProvider(provs[i]); |
| } |
| Signature sig = Signature.getInstance("sigalg"); |
| for (int i=0; i<provs.length; i++) { |
| Security.removeProvider("name"+i); |
| } |
| provs = Security.getProviders(); |
| } catch (NoSuchAlgorithmException nsae) { |
| } |
| |
| try { |
| Thread.sleep(5); |
| } catch (InterruptedException ie) { |
| } |
| } // while |
| } |
| } |
| |
| class MyProvider extends Provider { |
| public MyProvider(String name, String version, String info) { |
| super(name, version, info); |
| put("Signature.sigalg", "sigimpl"); |
| } |
| } |