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annotate test/compiler/6695810/Test.java @ 1314:3f0549ed0c98

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6921710: G1: assert(new_finger >= _finger && new_finger < _region_limit,"invariant") Summary: If CM task was aborted while scanning the last object of the specified region and the size of that object is equal to bitmap's granularity then the next offset would be equal or over the region limit which is exactly what the assertion states. Reviewed-by: ysr, tonyp, jmasa
author apetrusenko
date Thu, 18 Mar 2010 01:48:28 -0700
parents f1ecf9191140
children c18cbe5936b8
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1 /*
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2 * Copyright 2008 Sun Microsystems, Inc. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 */
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23
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24 /*
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25 * @test
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26 * @bug 6695810
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27 * @summary null oop passed to encode_heap_oop_not_null
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28 * @run main/othervm -Xbatch Test
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29 */
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30
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31 public class Test {
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32 Test _t;
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33
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34 static void test(Test t1, Test t2) {
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35 if (t2 != null)
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36 t1._t = t2;
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37
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38 if (t2 != null)
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39 t1._t = t2;
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40 }
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41
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42 public static void main(String[] args) {
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43 Test t = new Test();
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44 for (int i = 0; i < 50; i++) {
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45 for (int j = 0; j < 100; j++) {
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46 test(t, t);
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47 }
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48 test(t, null);
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49 }
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50 for (int i = 0; i < 10000; i++) {
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51 test(t, t);
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52 }
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53 test(t, null);
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54 }
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55 }