/*

 * Copyright (c) 2012, 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 7197642

 * @summary test ServiceLoader.load methods for NullPointerException.

 */

import java.util.ServiceLoader;

import java.util.Arrays;

public final class NPE {

    static abstract class Test {

        String name;

        Test(String name) { this.name = name; }

        abstract void run();

    }

    static Test load = new Test("ServiceLoader.load(null)") {

        void run() { ServiceLoader.load(null); }

    };

    static Test loadWithClassLoader = new Test("ServiceLoader.load(null, loader)") {

        void run() { ServiceLoader.load(null, NPE.class.getClassLoader()); }

    };

    static Test loadInstalled = new Test("ServiceLoader.loadInstalled(null)") {

        void run() { ServiceLoader.loadInstalled(null); }

    };

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

        for (Test t : Arrays.asList(load, loadWithClassLoader, loadInstalled)) {

            NullPointerException caught = null;

            try {

                t.run();

            } catch (NullPointerException e) {

                caught = e;

            }

            if (caught == null) {

                throw new RuntimeException("NullPointerException expected for method invocation of " + t.name);

            }

        }

    }

}