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/*
* Copyright (c) 2007, 2010, 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 6526376
@summary DeleteOnExitHook.add() produces NullPointerException
*/
import java.io.*;
/* NullPointerException in exec'ed process if fails.
* This testcase is timing sensitive. It may sometimes pass even with this bug
* present, but will never fail without it.
*/
public class DeleteOnExitNPE implements Runnable
{
public static void main(String[] args) throws Exception {
if (args.length == 0) {
runTest();
} else {
doTest();
}
}
public static void runTest() throws Exception {
String cmd = System.getProperty("java.home") + File.separator +
"bin" + File.separator + "java" +
" -classpath " + System.getProperty("test.classes");
Process process = Runtime.getRuntime().exec(cmd + " DeleteOnExitNPE -test");
BufferedReader isReader = new BufferedReader(new InputStreamReader(process.getInputStream()));
BufferedReader esReader = new BufferedReader(new InputStreamReader(process.getErrorStream()));
process.waitFor();
boolean failed = false;
String str;
while ((str = isReader.readLine()) != null) {
failed = true;
System.out.println(str);
}
while ((str = esReader.readLine()) != null) {
failed = true;
System.err.println(str);
}
if (failed)
throw new RuntimeException("Failed: No output should have been received from the process");
}
public static void doTest() {
try {
File file = File.createTempFile("DeleteOnExitNPE", null);
file.deleteOnExit();
Thread thread = new Thread(new DeleteOnExitNPE());
thread.start();
try {
Thread.sleep(2000);
} catch (InterruptedException ie) {
ie.printStackTrace();
}
System.exit(0);
} catch (IOException ioe) {
ioe.printStackTrace();
}
}
public void run() {
File file = new File("xxyyzz");
try {
for (;;) {
file.deleteOnExit();
}
} catch (IllegalStateException ise) {
// ignore. This is ok.
// Trying to add a file to the list of files marked as deleteOnExit when
// shutdown is in progress and the DeleteOnExitHook is running.
}
}
}
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(vorverarbeitet)
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