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/*
* 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");
}
}
}
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