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.DataInputStream; 25 import java.io.InputStream; 26 import java.io.PushbackInputStream; 27 28 /* 29 * @test 30 * @bug 8067801 31 * @summary Ensure constructors throw NPE when passed a null stream 32 */ 33 public class ConstructorNPE { 34 public static void main(String[] args) { 35 int failures = 0; 36 InputStream os = null; 37 38 try { 39 os = new BufferedInputStream(null); 40 System.err.println("No NPE for BufferedInputStream(null)"); 41 failures++; 42 } catch (NullPointerException ignore) { 43 } 44 45 try { 46 os = new DataInputStream(null); 47 System.err.println("No NPE for DataInputStream(null)"); 48 failures++; 49 } catch (NullPointerException ignore) { 50 } 51 52 try { 53 os = new PushbackInputStream(null); 54 System.err.println("No NPE for PushbackInputStream(null)"); 55 failures++; 56 } catch (NullPointerException ignore) { 57 } 58 59 if (failures > 0) throw new RuntimeException(failures + " failures"); 60 } 61 }