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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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 * 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,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

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/**

 * @test

 * @summary make sure removeProvider() always works correctly

 * @author Andreas Sterbenz

 */

import java.util.*;

import java.security.*;

public class RemoveProviders {

    public static void main(String[] args) throws Exception {

        Provider[] providers = Security.getProviders();

        System.out.println("Providers: " + Arrays.asList(providers));

        // remove each provider and add it back in at the end of the list

        for (int i = 0; i < providers.length; i++) {

            Provider p = providers[i];

            String name = p.getName();

            Security.removeProvider(name);

            if (Security.getProvider(name) != null) {

                throw new Exception("Provider not removed: " + name);

            }

            Security.addProvider(p);

        }

        if (Arrays.equals(providers, Security.getProviders()) == false) {

            throw new Exception("Provider mismatch: " + Arrays.asList(Security.getProviders()));

        }

        // remove non-existing provider

        Security.removeProvider("foo");

        if (Arrays.equals(providers, Security.getProviders()) == false) {

            throw new Exception("Provider mismatch: " + Arrays.asList(Security.getProviders()));

        }

        // remove from the middle of the list

        Security.removeProvider("SunJCE");

        if (Security.getProvider("SunJCE") != null) {

            throw new Exception("not removed");

        }

        System.out.println("Done.");

    }

}