test/jdk/sun/security/mscapi/PrngSerialize.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
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 *
 * 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).
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 * 2 along with this work; if not, write to the Free Software Foundation,
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/**
 * @test
 * @bug 8210476
 * @requires os.family == "windows"
 * @summary MSCAPI's PRNG should support serialization
 * @library /test/lib
 * @run main PrngSerialize
 */

import jdk.test.lib.util.SerializationUtils;

import java.security.SecureRandom;

public class PrngSerialize {

    public static void main(String[] args) throws Exception {
        SecureRandom sr = SecureRandom.getInstance("Windows-PRNG", "SunMSCAPI");
        sr = (SecureRandom) SerializationUtils.deserialize(SerializationUtils.serialize(sr));

        // This line is likely to release the context in the original sr.
        System.gc();

        // Make sure the new object is still useable.
        sr.nextInt();
    }
}