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.BufferedOutputStream;
  24 import java.io.DataOutputStream;
  25 import java.io.OutputStream;
  26 
  27 /*
  28  * @test
  29  * @bug 8067801
  30  * @summary Ensure constructors throw NPE when passed a null stream
  31  */
  32 public class ConstructorNPE {
  33     public static void main(String[] args) {
  34         int failures = 0;
  35         OutputStream os = null;
  36 
  37         try {
  38             os = new BufferedOutputStream(null);
  39             System.err.println("No NPE for BufferedOutputStream(null)");
  40             failures++;
  41         } catch (NullPointerException ignore) {
  42         }
  43 
  44         try {
  45             os = new DataOutputStream(null);
  46             System.err.println("No NPE for DataOutputStream(null)");
  47             failures++;
  48         } catch (NullPointerException ignore) {
  49         }
  50 
  51         if (failures > 0) throw new RuntimeException(failures + " failures");
  52     }
  53 }