jdk/test/java/lang/Integer/ValueOf.java
author jbachorik
Tue, 21 Jan 2014 13:04:55 +0100
changeset 22353 d09e3ff5fd63
parent 5506 202f599c92aa
permissions -rw-r--r--
8032377: test/java/lang/management/ThreadMXBean/ThreadBlockedCount.java still fails intermittently Reviewed-by: dholmes
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/*
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 * Copyright (c) 2009, 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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/**
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 * @test
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 * @bug 6807702
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 * @summary Basic test for Integer.valueOf
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 * @run main ValueOf
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 * @run main/othervm -esa -XX:+AggressiveOpts ValueOf
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 */
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public class ValueOf {
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    // test Integer.valueOf over this range (inclusive)
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    private static final int TEST_LOW  = -1024;
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    private static final int TEST_HIGH = 24576;
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    public static void main(String[] args) {
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        int i = TEST_LOW;
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        while (i <= TEST_HIGH) {
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            // check that valueOf stores i
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            if (Integer.valueOf(i).intValue() != i)
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                throw new RuntimeException();
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            // check that the same object is returned for integral values
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            // in the range -128 to 127 (inclusive)
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            if (i >= -128 && i <= 127) {
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                if (Integer.valueOf(i) != Integer.valueOf(i))
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                    throw new RuntimeException();
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            }
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            i++;
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        }
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    }
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}