| /* |
| * Copyright (c) 1998, 2005, 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 4143651 5085148 |
| * |
| * @summary Test if Writer methods will check if the stream |
| * has been closed. |
| */ |
| |
| import java.io.*; |
| |
| public class WriteAfterClose { |
| |
| static boolean failed = false; |
| |
| static void testWrite(Writer wtr) throws Exception { |
| |
| // These tests could be tighted to only check for a particular |
| // kind of exception, but in 1.2beta4 StringWriter and |
| // other writers throw RuntimeExceptions |
| char[] cbuf = new char[2]; |
| wtr.close(); |
| System.out.println("Class " + wtr.getClass().getName()); |
| |
| try { |
| wtr.write('a'); |
| System.out.println("FAILED: Allows char write on a closed stream"); |
| failed = true; |
| } catch (Exception e) { |
| } |
| |
| try { |
| wtr.write(cbuf, 0, 1); |
| System.out.println("FAILED: Allows buffer write on a closed stream"); |
| failed = true; |
| } catch (Exception e) { |
| } |
| |
| try { |
| wtr.write(cbuf, 0, 0); |
| System.out.println("FAILED: Allows empty write on a closed stream"); |
| failed = true; |
| } catch (Exception e) { |
| } |
| |
| try { |
| wtr.write("a"); |
| System.out.println("FAILED: Allows string write on a closed stream"); |
| failed = true; |
| } catch (Exception e) { |
| } |
| |
| try { |
| wtr.write("a", 0, 1); |
| System.out.println("FALIED: Allows string buf write on a closed stream"); |
| failed = true; |
| } catch (Exception e) { |
| } |
| |
| try { |
| wtr.flush(); |
| System.out.println("FAILED: Allows flushing writer on a closed stream"); |
| failed = true; |
| } catch (Exception e) { |
| } |
| |
| wtr.close(); |
| } |
| |
| public static void main(String argv[]) throws Exception { |
| StringWriter sw = new StringWriter(); |
| testWrite(new BufferedWriter(sw)); |
| |
| ByteArrayOutputStream bos = new ByteArrayOutputStream(); |
| OutputStreamWriter osw = new OutputStreamWriter(bos); |
| testWrite(osw); |
| |
| File f = new File(System.getProperty("test.dir", "."), |
| "NewFile"); |
| f.createNewFile(); |
| f.deleteOnExit(); |
| FileWriter fr = new FileWriter(f); |
| testWrite(fr); |
| |
| if (failed) { |
| throw new Exception("The test failed because one of the" |
| + " writer operation{s} failed. Check the messages"); |
| } |
| } |
| } |