1 /*

     2  * Copyright (c) 2019, 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 import java.io.BufferedInputStream;

    24 import java.io.BufferedOutputStream;

    25 import java.io.DataInputStream;

    26 import java.io.DataOutputStream;

    27 import java.io.InputStream;

    28 import java.io.OutputStream;

    29 import java.io.PushbackInputStream;

    30 

    31 import org.testng.annotations.Test;

    32 import static org.testng.Assert.*;

    33 

    34 /*

    35  * @test

    36  * @bug 8067801

    37  * @run testng NPETests

    38  * @summary Ensure constructors throw NPE when passed a null stream

    39  */

    40 public class NPETests {

    41 

    42     @Test

    43     public static void BufferedInputStreamConstructor() {

    44         assertThrows(NullPointerException.class,

    45             () -> new BufferedInputStream(null));

    46         assertThrows(NullPointerException.class,

    47             () -> new BufferedInputStream(null, 42));

    48     }

    49 

    50     @Test

    51     public static void DataInputStreamConstructor() {

    52         assertThrows(NullPointerException.class,

    53             () -> new DataInputStream(null));

    54     }

    55 

    56     @Test

    57     public static void PushbackInputStreamConstructor() {

    58         assertThrows(NullPointerException.class,

    59             () -> new PushbackInputStream(null));

    60         assertThrows(NullPointerException.class,

    61             () -> new PushbackInputStream(null, 42));

    62     }

    63 

    64     @Test

    65     public static void BufferedOutputStreamConstructor() {

    66         assertThrows(NullPointerException.class,

    67             () -> new BufferedOutputStream(null));

    68         assertThrows(NullPointerException.class,

    69             () -> new BufferedOutputStream(null, 42));

    70     }

    71 

    72     @Test

    73     public static void DataOutputStreamConstructor() {

    74         assertThrows(NullPointerException.class,

    75             () -> new DataOutputStream(null));

    76     }

    77 }