jdk-24/test/hotspot/jtreg/gc/epsilon/TestEnoughUnusedSpace.java
2024-03-18 11:27:27 +00:00

44 lines
1.6 KiB
Java

/*
* Copyright (c) 2024, 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.
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package gc.epsilon;
/**
* @test TestEnoughUnusedSpace
* @requires vm.gc.Epsilon
* @summary Epsilon should allocates object successfully if it has enough space.
* @run main/othervm -Xms64M -Xmx128M -XX:+UnlockExperimentalVMOptions
* -XX:+UseEpsilonGC gc.epsilon.TestEnoughUnusedSpace
*/
public class TestEnoughUnusedSpace {
static volatile Object arr;
public static void main(String[] args) {
// Create an array about 90M. It should be created successfully
// instead of throwing OOME, because 90M is smaller than 128M.
arr = new byte[90 * 1024 * 1024];
}
}