--- a/jdk/test/java/lang/Runtime/exec/CloseRace.java Fri Jan 31 11:10:36 2014 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,146 +0,0 @@
-/*
- * Copyright (c) 2013, 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 8024521
- * @summary Closing ProcessPipeInputStream at the time the process exits is racy
- * and leads to the data corruption.
- * @library /lib/testlibrary
- * @run main/othervm/timeout=80 CloseRace
- */
-
-/**
- * This test has a little chance to catch the race during the given default
- * time gap of 20 seconds. To increase the time gap, set the system property
- * CloseRaceTimeGap=N to the number of seconds.
- * Jtreg's timeoutFactor should also be set appropriately.
- *
- * For example, to run the test for 10 minutes:
- * > jtreg \
- * -testjdk:$(PATH_TO_TESTED_JDK) \
- * -timeoutFactor:10 \
- * -DCloseRaceTimeGap=600 \
- * $(PATH_TO_TESTED_JDK_SOURCE)/test/java/lang/Runtime/exec/CloseRace.java
- */
-
-import java.io.*;
-import java.nio.file.Files;
-import java.nio.file.Path;
-import java.nio.file.Paths;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.LinkedList;
-import java.util.List;
-import jdk.testlibrary.OutputAnalyzer;
-import static jdk.testlibrary.ProcessTools.*;
-
-public class CloseRace {
-
- public static void main(String args[]) throws Exception {
- ProcessBuilder pb = createJavaProcessBuilder("-Xmx64M", "CloseRace$Child",
- System.getProperty("CloseRaceTimeGap", "20"));
- OutputAnalyzer oa = new OutputAnalyzer(pb.start());
- oa.stderrShouldNotContain("java.lang.OutOfMemoryError");
- }
-
- public static class Child {
- private static final String BIG_FILE = "bigfile";
- private static final String SMALL_FILE = "smallfile";
- private static int timeGap = 20; // seconds
-
- public static void main(String args[]) throws Exception {
- if (args.length > 0) {
- try {
- timeGap = Integer.parseUnsignedInt(args[0]);
- timeGap = Integer.max(timeGap, 10);
- timeGap = Integer.min(timeGap, 10 * 60 * 60); // no more than 10 hours
- } catch (NumberFormatException ignore) {}
- }
- try (RandomAccessFile f = new RandomAccessFile(BIG_FILE, "rw")) {
- f.setLength(1024 * 1024 * 1024); // 1 Gb, greater than max heap size
- }
- try (FileOutputStream fs = new FileOutputStream(SMALL_FILE);
- PrintStream ps = new PrintStream(fs)) {
- for (int i = 0; i < 128; ++i)
- ps.println("line of text");
- }
-
- List<Thread> threads = new LinkedList<>();
- for (int i = 0; i < 99; ++i) {
- Thread t = new Thread (new OpenLoop());
- t.start();
- threads.add(t);
- }
- Thread t2 = new Thread (new ExecLoop());
- t2.start();
- threads.add(t2);
-
- Thread.sleep(timeGap);
-
- for (Thread t : threads) {
- t.interrupt();
- t.join();
- }
- }
-
- private static class OpenLoop implements Runnable {
- public void run() {
- final Path bigFilePath = Paths.get(BIG_FILE);
- while (!Thread.interrupted()) {
- try (InputStream in = Files.newInputStream(bigFilePath)) {
- // Widen the race window by sleeping 1ms
- Thread.sleep(1);
- } catch (InterruptedException e) {
- break;
- } catch (Exception e) {
- System.err.println(e);
- }
- }
- }
- }
-
- private static class ExecLoop implements Runnable {
- public void run() {
- List<String> command = new ArrayList<>(
- Arrays.asList("/bin/cat", SMALL_FILE));
- while (!Thread.interrupted()) {
- try {
- ProcessBuilder builder = new ProcessBuilder(command);
- final Process process = builder.start();
- InputStream is = process.getInputStream();
- InputStreamReader isr = new InputStreamReader(is);
- BufferedReader br = new BufferedReader(isr);
- while (br.readLine() != null) {}
- process.waitFor();
- isr.close();
- } catch (InterruptedException e) {
- break;
- } catch (Exception e) {
- System.err.println(e);
- }
- }
- }
- }
- }
-}