1 /* 2 * Copyright (c) 2005, 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 24 /** 25 * @test 26 * @bug 4491255 27 * @summary Test for a new protected method PrintWriter.clearError() 28 * to reset its internal error state 29 */ 30 31 import java.io.*; 32 33 public class ClearErrorWriter extends PrintWriter { 34 35 ClearErrorWriter(Writer w, boolean autoFlush)36 public ClearErrorWriter(Writer w, boolean autoFlush) { 37 super(w, autoFlush); 38 } 39 main(String[] args)40 public static void main(String[] args) throws Exception { 41 42 File f = new File(System.getProperty("test.dir", "."), 43 "print-writer.out"); 44 f.deleteOnExit(); 45 ClearErrorWriter out = new ClearErrorWriter(new BufferedWriter( 46 new FileWriter(f)), 47 true); 48 out.println("Hello World!"); 49 out.close(); 50 out.println("Writing after close"); 51 52 if (out.checkError()) { 53 System.out.println("An error occured"); 54 out.clearError(); 55 56 if (!out.checkError()) { 57 System.out.println("Error status cleared"); 58 } else { 59 throw new Exception("Error Status unchanged"); 60 } 61 } 62 else { 63 System.out.println(" No error occured"); 64 } 65 } 66 } 67