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86a3c320e4
6628175: NetBeans/OpenJDK projects should support generated sources 6598089: JDK 7: AWT often goes into busy loop when showing dialog 6612531: api/javax_swing/ScrollPaneLayout/index.html#xxxLayoutSize[ScrollPaneLayout2024] throws NPE 6550267: Debugging some NetBeans/OpenJDK project's demo apps does not work 6610014: Allow partial open jdk builds without access to binary plugs 6643627: JMX source code includes incorrect Java code 6652042: NetBeans JConsole project should run tests against JAR built by project 6652053: Rename NetBeans project from j2se to jdk 6653678: NetBeans JDK projects README file should be release-agnostic 6654456: OpenJDK build problem with freetype makefiles 6654903: OpenJDK NetBeans projects should ony run appropriate tests 6658909: A few more SCCS keyword cleanups and whitespace processing 6616089: Whitespace cleanup on all sources Final b04 state (as defined by the source bundle) Reviewed-by: darcy
60 lines
2.3 KiB
Java
60 lines
2.3 KiB
Java
/*
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* Copyright (c) 2007 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*/
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/*
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* @test
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* @bug 4944561
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* @summary Test hashCode() to have less than 10% of hash code conflicts.
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*/
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import java.util.*;
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public class HashCodeTest {
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public static void main(String[] args) {
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Locale[] locales = Locale.getAvailableLocales();
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int min = Integer.MAX_VALUE;
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int max = Integer.MIN_VALUE;
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Map map = new HashMap(locales.length);
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int conflicts = 0;
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for (int i = 0; i < locales.length; i++) {
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Locale loc = locales[i];
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int hc = loc.hashCode();
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min = Math.min(hc, min);
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max = Math.max(hc, max);
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Integer key = new Integer(hc);
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if (map.containsKey(key)) {
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conflicts++;
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System.out.println("conflict: " + (Locale) map.get(key) + ", " + loc);
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} else {
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map.put(key, loc);
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}
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}
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System.out.println(locales.length+" locales: conflicts="+conflicts
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+", min="+min+", max="+max +", diff="+(max-min));
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if (conflicts >= (locales.length / 10)) {
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throw new RuntimeException("too many conflicts: " + conflicts
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+ " per " + locales.length + " locales");
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}
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}
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}
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