/* * Copyright (c) 1998, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ /* @test @bug 4152455 @summary A null lock in the create must throw an exception */ import java.io.*; public class NullLock { public static void main(String argv[]) throws Exception { if (!testBufferedReader()) throw new Exception("Buffered Reader constructor: " + "Null argument must throw an exception"); if (!testBufferedWriter()) throw new Exception("BufferedWriter constructor: " + " Null arg must throw an exception"); } static boolean testBufferedReader(){ try { InputStreamReader isr = null; BufferedReader br = new BufferedReader(isr); } catch(NullPointerException e) { return true; } return false; } static boolean testBufferedWriter(){ try { OutputStreamWriter isr = null; BufferedWriter br = new BufferedWriter(isr); } catch(NullPointerException e) { return true; } return false; } }