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 }