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

Reviewed-by: okutsu

test/java/text/Bidi/Bug6665028.java

-/*
- * 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");
-        }
-    }
-}