1 /*

     2  * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

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

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  */

    23 

    24 /**

    25  * @test

    26  * @bug 7197642

    27  * @summary test ServiceLoader.load methods for NullPointerException.

    28  */

    29 import java.util.ServiceLoader;

    30 import java.util.Arrays;

    31 

    32 public final class NPE {

    33     static abstract class Test {

    34         String name;

    35 

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

    37 

    38         abstract void run();

    39     }

    40 

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

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

    43     };

    44 

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

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

    47     };

    48 

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

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

    51     };

    52 

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

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

    55             NullPointerException caught = null;

    56             try {

    57                 t.run();

    58             } catch (NullPointerException e) {

    59                 caught = e;

    60             }

    61             if (caught == null) {

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

    63             }

    64         }

    65     }

    66 }

    67