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8029057: test/java/text/Bidi/Bug6665028.java can fail with OutOfMemoryError

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Reviewed-by: okutsu
This commit is contained in:
Yuka Kamiya 2013-11-26 14:49:55 +09:00
parent fd33467c12
commit 2d7889013f
1 changed files with 0 additions and 135 deletions
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jdk/test/java/text/Bidi/Bug6665028.java
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/*
* Copyright (c) 2007, 2011, 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 6665028
* @summary verify that the memory corruption doesn't happen. Note
* that this test case fails without the fix in some different ways,
* including timeout, due to the memory corruption.
* @build Bug6665028
* @run main/othervm -Xmx16m Bug6665028 10
*/
import java.awt.font.TextAttribute;
import java.text.AttributedString;
import java.text.Bidi;
// test1() and test2() were derived from BidiEmbeddingTest.
// Usage: java Bug6665028 [duration]
public class Bug6665028 {
private static boolean runrun = true;
private static class Test extends Thread {
public void run() {
while (runrun) {
test1();
test2();
}
}
}
public static void main(String[] args) {
int duration = 45;
if (args.length == 1) {
duration = Math.max(1, Math.min(Integer.parseInt(args[0]), 45));
}
Test[] tests = new Test[4];
for (int i = 0; i < tests.length; i++) {
Test t = new Test();
tests[i] = t;
t.start();
}
try {
Thread.sleep(duration * 1000);
} catch (InterruptedException e) {
}
runrun = false;
for (int i = 0; i < tests.length; i++) {
try {
tests[i].join();
} catch (InterruptedException e) {
}
}
}
static String target;
static {
String s = "A Bidi object provides information on the bidirectional reordering of the text used to create it. This is required, for example, to properly display Arabic or Hebrew text. ";
StringBuilder sb = new StringBuilder();
for (int i = 0; i < 1000; i++) {
sb.append(s);
}
target = sb.toString();
}
static void test1() {
String str = "If this text is >" + target + "< the test passed.";
int start = str.indexOf(target);
int limit = start + target.length();
AttributedString astr = new AttributedString(str);
astr.addAttribute(TextAttribute.BIDI_EMBEDDING,
new Integer(-1),
start,
limit);
Bidi bidi = new Bidi(astr.getIterator());
byte[] embs = new byte[str.length() + 3];
for (int i = start + 1; i < limit + 1; ++i) {
embs[i] = -1;
}
Bidi bidi2 = new Bidi(str.toCharArray(), 0, embs, 1, str.length(), Bidi.DIRECTION_DEFAULT_LEFT_TO_RIGHT);
if (bidi.getRunCount() != 3 || bidi2.getRunCount() != 3) {
throw new Error("Bidi run count incorrect");
}
}
static void test2() {
String str = "If this text is >" + target + "< the test passed.";
int length = str.length();
int start = str.indexOf(target);
int limit = start + target.length();
AttributedString astr = new AttributedString(str);
astr.addAttribute(TextAttribute.RUN_DIRECTION, TextAttribute.RUN_DIRECTION_RTL);
astr.addAttribute(TextAttribute.BIDI_EMBEDDING,
new Integer(-3),
start,
limit);
Bidi bidi = new Bidi(astr.getIterator());
if (bidi.getRunCount() != 6) { // runs of spaces and angles at embedding bound,s and final period, each get level 1
throw new Error("Bidi embedding processing failed");
}
}
}