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TestArrayMeetNotSymmetrical.java
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TestArrayMeetNotSymmetrical.java
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/*
* Copyright (c) 2020, Red Hat, Inc. 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 8240676
* @summary Meet not symmetric failure when running lucene on jdk8
*
* @run main/othervm -XX:-BackgroundCompilation TestArrayMeetNotSymmetrical
*
*/
public class TestArrayMeetNotSymmetrical {
private static final Object field = new Object[0];
private static final Object field2 = new A[0];
public static void main(String[] args) {
Object array = new A[10];
for (int i = 0; i < 20_000; i++) {
test1(true, 10);
test1(false, 10);
test2(true);
test2(false);
}
}
private static Object test1(boolean flag, int len) {
Object o;
if (flag) {
o = field;
} else {
o = new A[len];
}
return o;
}
private static Object test2(boolean flag) {
Object o;
if (flag) {
o = field;
} else {
o = field2;
}
return o;
}
private static class A {
}
}