author | martin |
Tue, 15 Sep 2015 21:56:04 -0700 | |
changeset 32649 | 2ee9017c7597 |
parent 5506 | 202f599c92aa |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 1997, 1998, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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/* @test |
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* @bug 4076283 |
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* @summary java.lang.ref.SoftReference should reliably prevent |
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* OutOfMemoryErrors |
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* @author Peter Jones |
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* @author Mark Reinhold |
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*/ |
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/* If this test fails, an OutOfMemoryError will be thrown */ |
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import java.lang.ref.SoftReference; |
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public class Bash { |
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static class TestReference extends SoftReference { |
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public static TestReference head; |
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public TestReference next; |
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public TestReference(Object referent) { |
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super(referent); |
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next = head; |
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head = this; |
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} |
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} |
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32649
2ee9017c7597
8136583: Core libraries should use blessed modifier order
martin
parents:
5506
diff
changeset
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static final int NUM_BLOCKS = 2048; |
2ee9017c7597
8136583: Core libraries should use blessed modifier order
martin
parents:
5506
diff
changeset
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static final int BLOCK_SIZE = 32768; |
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public static void main(String[] args) throws Exception { |
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for (int i = 0; i < NUM_BLOCKS; ++ i) { |
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TestReference ref = new TestReference(new byte[BLOCK_SIZE]); |
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} |
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int emptyCount = 0; |
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int fullCount = 0; |
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for (TestReference r = TestReference.head; r != null; r = r.next) { |
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if (r.get() == null) emptyCount++; |
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else fullCount++; |
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} |
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System.err.println(fullCount + " full, " + emptyCount + " empty "); |
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} |
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} |