diff --git a/src/test/org/apache/commons/collections/MapPerformance.java b/src/test/org/apache/commons/collections/MapPerformance.java
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+/*
+ * $Header: /home/jerenkrantz/tmp/commons/commons-convert/cvs/home/cvs/jakarta-commons//collections/src/test/org/apache/commons/collections/MapPerformance.java,v 1.1 2003/11/02 23:43:00 scolebourne Exp $
+ * ====================================================================
+ *
+ * The Apache Software License, Version 1.1
+ *
+ * Copyright (c) 2003 The Apache Software Foundation. All rights
+ * reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3. The end-user documentation included with the redistribution, if
+ * any, must include the following acknowledgment:
+ * "This product includes software developed by the
+ * Apache Software Foundation (http://www.apache.org/)."
+ * Alternately, this acknowledgment may appear in the software itself,
+ * if and wherever such third-party acknowledgments normally appear.
+ *
+ * 4. The names "The Jakarta Project", "Commons", and "Apache Software
+ * Foundation" must not be used to endorse or promote products derived
+ * from this software without prior written permission. For written
+ * permission, please contact apache@apache.org.
+ *
+ * 5. Products derived from this software may not be called "Apache"
+ * nor may "Apache" appear in their names without prior written
+ * permission of the Apache Software Foundation.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This software consists of voluntary contributions made by many
+ * individuals on behalf of the Apache Software Foundation. For more
+ * information on the Apache Software Foundation, please see
+ * .
+ *
+ */
+package org.apache.commons.collections;
+
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.LinkedHashMap;
+import java.util.Map;
+import java.util.Set;
+import java.util.TreeMap;
+
+/**
+ * TestMapPerformance is designed to perform basic Map performance tests.
+ *
+ * @author Stephen Colebourne
+ */
+public class MapPerformance {
+
+ /** The total number of runs for each test */
+ private static final int RUNS = 20000000;
+
+ /**
+ * Main method
+ */
+ public static void main(String[] args) {
+ testAll();
+ }
+
+ private static void testAll() {
+ Map dummyMap = new DummyMap();
+ Map hashMap = new HashMap();
+// hashMap.put("Alpha", "A");
+// hashMap.put("Beta", "B");
+// hashMap.put("Gamma", "C");
+// hashMap.put("Delta", "D");
+ Map flatMap = new Flat3Map(hashMap);
+ System.out.println(flatMap);
+ Map unmodHashMap = Collections.unmodifiableMap(new HashMap(hashMap));
+ Map fastHashMap = new FastHashMap(hashMap);
+ Map treeMap = new TreeMap(hashMap);
+ Map seqMap = new SequencedHashMap(hashMap);
+ Map linkedMap = new LinkedHashMap(hashMap);
+ Map syncMap = Collections.unmodifiableMap(new HashMap(hashMap));
+ Map bucketMap = new StaticBucketMap();
+ bucketMap.putAll(hashMap);
+ Map doubleMap = new DoubleOrderedMap(hashMap);
+
+ // dummy is required as the VM seems to hotspot the first call to the
+ // test method with the given type
+ test(dummyMap, " Dummy ");
+ test(dummyMap, " Dummy ");
+ test(dummyMap, " Dummy ");
+ test(flatMap, " Flat3 ");
+ test(hashMap, " HashMap ");
+
+ test(flatMap, " Flat3 ");
+ test(flatMap, " Flat3 ");
+ test(flatMap, " Flat3 ");
+
+ test(hashMap, " HashMap ");
+ test(hashMap, " HashMap ");
+ test(hashMap, " HashMap ");
+
+// test(treeMap, " TreeMap ");
+// test(treeMap, " TreeMap ");
+// test(treeMap, " TreeMap ");
+
+// test(unmodHashMap, "Unmod(HashMap) ");
+// test(unmodHashMap, "Unmod(HashMap) ");
+// test(unmodHashMap, "Unmod(HashMap) ");
+//
+// test(syncMap, " Sync(HashMap) ");
+// test(syncMap, " Sync(HashMap) ");
+// test(syncMap, " Sync(HashMap) ");
+//
+// test(fastHashMap, " FastHashMap ");
+// test(fastHashMap, " FastHashMap ");
+// test(fastHashMap, " FastHashMap ");
+//
+// test(seqMap, " SeqHashMap ");
+// test(seqMap, " SeqHashMap ");
+// test(seqMap, " SeqHashMap ");
+//
+// test(linkedMap, " LinkedHashMap ");
+// test(linkedMap, " LinkedHashMap ");
+// test(linkedMap, " LinkedHashMap ");
+//
+// test(bucketMap, " BucketMap ");
+// test(bucketMap, " BucketMap ");
+// test(bucketMap, " BucketMap ");
+//
+// test(doubleMap, " DoubleMap ");
+// test(doubleMap, " DoubleMap ");
+// test(doubleMap, " DoubleMap ");
+ }
+
+ private static void test(Map map, String name) {
+ long start = 0, end = 0;
+ int total = 0;
+ start = System.currentTimeMillis();
+ for (int i = RUNS; i > 0; i--) {
+// if (map.get("Alpha") != null) total++;
+// if (map.get("Beta") != null) total++;
+// if (map.get("Gamma") != null) total++;
+ map.put("Alpha", "A");
+ map.put("Beta", "B");
+ map.put("Beta", "C");
+ map.put("Gamma", "D");
+// map.remove("Gamma");
+// map.remove("Beta");
+// map.remove("Alpha");
+ map.put("Delta", "E");
+ map.clear();
+ }
+ end = System.currentTimeMillis();
+ System.out.println(name + (end - start));
+ }
+
+ // ----------------------------------------------------------------------
+
+ private static class DummyMap implements Map {
+ public void clear() {
+ }
+ public boolean containsKey(Object key) {
+ return false;
+ }
+ public boolean containsValue(Object value) {
+ return false;
+ }
+ public Set entrySet() {
+ return null;
+ }
+ public Object get(Object key) {
+ return null;
+ }
+ public boolean isEmpty() {
+ return false;
+ }
+ public Set keySet() {
+ return null;
+ }
+ public Object put(Object key, Object value) {
+ return null;
+ }
+ public void putAll(Map t) {
+ }
+ public Object remove(Object key) {
+ return null;
+ }
+ public int size() {
+ return 0;
+ }
+ public Collection values() {
+ return null;
+ }
+ }
+
+}
+