113 lines
3.5 KiB
Java
113 lines
3.5 KiB
Java
/*
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* Copyright (c) 1998, 2022, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/**
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* @test
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* @bug 4143651 5085148
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*
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* @summary Test if Writer methods will check if the stream
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* has been closed.
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*/
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import java.io.*;
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public class WriteAfterClose {
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static boolean failed = false;
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static void testWrite(Writer wtr) throws Exception {
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// These tests could be tighted to only check for a particular
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// kind of exception, but in 1.2beta4 StringWriter and
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// other writers throw RuntimeExceptions
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char[] cbuf = new char[2];
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wtr.close();
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System.out.println("Class " + wtr.getClass().getName());
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try {
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wtr.write('a');
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System.out.println("FAILED: Allows char write on a closed stream");
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failed = true;
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} catch (Exception e) {
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}
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try {
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wtr.write(cbuf, 0, 1);
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System.out.println("FAILED: Allows buffer write on a closed stream");
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failed = true;
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} catch (Exception e) {
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}
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try {
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wtr.write(cbuf, 0, 0);
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System.out.println("FAILED: Allows empty write on a closed stream");
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failed = true;
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} catch (Exception e) {
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}
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try {
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wtr.write("a");
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System.out.println("FAILED: Allows string write on a closed stream");
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failed = true;
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} catch (Exception e) {
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}
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try {
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wtr.write("a", 0, 1);
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System.out.println("FAILED: Allows string buf write on a closed stream");
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failed = true;
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} catch (Exception e) {
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}
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try {
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wtr.flush();
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System.out.println("FAILED: Allows flushing writer on a closed stream");
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failed = true;
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} catch (Exception e) {
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}
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wtr.close();
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}
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public static void main(String argv[]) throws Exception {
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StringWriter sw = new StringWriter();
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testWrite(new BufferedWriter(sw));
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ByteArrayOutputStream bos = new ByteArrayOutputStream();
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OutputStreamWriter osw = new OutputStreamWriter(bos);
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testWrite(osw);
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File f = new File(System.getProperty("test.dir", "."),
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"NewFile");
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f.createNewFile();
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f.deleteOnExit();
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FileWriter fr = new FileWriter(f);
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testWrite(fr);
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if (failed) {
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throw new Exception("The test failed because one of the"
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+ " writer operation{s} failed. Check the messages");
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}
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}
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}
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