--- a/jdk/test/java/util/Map/CheckRandomHashSeed.java Fri Sep 13 10:48:12 2013 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,91 +0,0 @@
-/*
- * Copyright (c) 2013, 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.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-/**
- * @test
- * @bug 8005698
- * @summary Check operation of jdk.map.useRandomSeed property
- * @run main CheckRandomHashSeed
- * @run main/othervm -Djdk.map.useRandomSeed=false CheckRandomHashSeed
- * @run main/othervm -Djdk.map.useRandomSeed=bogus CheckRandomHashSeed
- * @run main/othervm -Djdk.map.useRandomSeed=true CheckRandomHashSeed true
- * @author Brent Christian
- */
-import java.lang.reflect.Field;
-import java.util.Map;
-import java.util.HashMap;
-import java.util.LinkedHashMap;
-import java.util.Hashtable;
-import java.util.WeakHashMap;
-
-public class CheckRandomHashSeed {
- private final static String PROP_NAME = "jdk.map.useRandomSeed";
- static boolean expectRandom = false;
-
- public static void main(String[] args) {
- if (args.length > 0 && args[0].equals("true")) {
- expectRandom = true;
- }
- String hashSeedProp = System.getProperty(PROP_NAME);
- boolean propSet = (null != hashSeedProp)
- ? Boolean.parseBoolean(hashSeedProp) : false;
- if (expectRandom != propSet) {
- throw new Error("Error in test setup: " + (expectRandom ? "" : "not " ) + "expecting random hashSeed, but " + PROP_NAME + " is " + (propSet ? "" : "not ") + "enabled");
- }
-
- testMap(new WeakHashMap());
- testMap(new Hashtable());
- }
-
- private static void testMap(Map map) {
- int hashSeed = getHashSeed(map);
- boolean hashSeedIsZero = (hashSeed == 0);
-
- if (expectRandom != hashSeedIsZero) {
- System.out.println("Test passed for " + map.getClass().getSimpleName() + " - expectRandom: " + expectRandom + ", hashSeed: " + hashSeed);
- } else {
- throw new Error ("Test FAILED for " + map.getClass().getSimpleName() + " - expectRandom: " + expectRandom + ", hashSeed: " + hashSeed);
- }
- }
-
- private static int getHashSeed(Map map) {
- try {
- if (map instanceof HashMap || map instanceof LinkedHashMap) {
- map.put("Key", "Value");
- Field hashSeedField = HashMap.class.getDeclaredField("hashSeed");
- hashSeedField.setAccessible(true);
- int hashSeed = hashSeedField.getInt(map);
- return hashSeed;
- } else {
- map.put("Key", "Value");
- Field hashSeedField = map.getClass().getDeclaredField("hashSeed");
- hashSeedField.setAccessible(true);
- int hashSeed = hashSeedField.getInt(map);
- return hashSeed;
- }
- } catch(Exception e) {
- e.printStackTrace();
- throw new Error(e);
- }
- }
-}