Quelle ChangeProviders.java Sprache: JAVA

/*
* Copyright (c) 2003, 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 4856968 7054918 8130181
* @library ../testlibrary
* @summary make sure add/insert/removeProvider() work correctly
* @author Andreas Sterbenz
*/

import java.util.*;

import java.security.*;

public class ChangeProviders extends Provider {

    private ChangeProviders() {
        super("Foo", "47.23", "none");
    }

    private static int plen() {
        return Security.getProviders().length;
    }

    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 {
        long start = System.currentTimeMillis();
        Provider p = new ChangeProviders();

        int n = plen();
        Security.addProvider(p);
        if (plen() != n + 1) {
            throw new Exception("Provider not added");
        }
        Security.addProvider(p);
        if (plen() != n + 1) {
            throw new Exception("Provider readded");
        }
        Security.insertProviderAt(p, 1);
        if (plen() != n + 1) {
            throw new Exception("Provider readded");
        }
        Security.removeProvider(p.getName());
        if ((plen() != n) || (Security.getProvider(p.getName()) != null)) {
            throw new Exception("Provider not removed");
        }
        Security.insertProviderAt(p, 1);
        if (plen() != n + 1) {
            throw new Exception("Provider not added");
        }
        if (Security.getProviders()[0] != p) {
            throw new Exception("Provider not at pos 1");
        }

        System.out.println("All tests passed.");
    }

}

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