| author | iignatyev |
| Tue, 20 May 2014 18:25:14 +0400 | |
| changeset 24473 | 1227042cdc67 |
| parent 23466 | 9d07219a52a9 |
| child 29678 | dd2f3932c21e |
| permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2014, 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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import static com.oracle.java.testlibrary.Asserts.assertEQ; |
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import static com.oracle.java.testlibrary.Asserts.assertFalse; |
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import static com.oracle.java.testlibrary.Asserts.assertTrue; |
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import com.oracle.java.testlibrary.DynamicVMOption; |
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/** |
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* @test TestDynMaxHeapFreeRatio |
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* @bug 8028391 |
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* @summary Verify that MaxHeapFreeRatio flag is manageable |
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* @library /testlibrary |
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* @run main TestDynMaxHeapFreeRatio |
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* @run main/othervm -XX:MinHeapFreeRatio=0 -XX:MaxHeapFreeRatio=100 TestDynMaxHeapFreeRatio |
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* @run main/othervm -XX:MinHeapFreeRatio=10 -XX:MaxHeapFreeRatio=50 -XX:-UseAdaptiveSizePolicy TestDynMaxHeapFreeRatio |
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* @run main/othervm -XX:MinHeapFreeRatio=10 -XX:MaxHeapFreeRatio=50 TestDynMaxHeapFreeRatio |
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* @run main/othervm -XX:MinHeapFreeRatio=51 -XX:MaxHeapFreeRatio=52 TestDynMaxHeapFreeRatio |
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* @run main/othervm -XX:MinHeapFreeRatio=75 -XX:MaxHeapFreeRatio=100 TestDynMaxHeapFreeRatio |
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*/ |
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public class TestDynMaxHeapFreeRatio {
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public static void main(String args[]) throws Exception {
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// low boundary value |
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int minValue = DynamicVMOption.getInt("MinHeapFreeRatio");
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System.out.println("MinHeapFreeRatio= " + minValue);
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String badValues[] = {
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null, |
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"", |
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"not a number", |
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"8.5", "-0.01", |
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Integer.toString(Integer.MIN_VALUE), |
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Integer.toString(Integer.MAX_VALUE), |
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Integer.toString(minValue - 1), |
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"-1024", "-1", "101", "1997" |
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}; |
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String goodValues[] = {
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Integer.toString(minValue), |
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Integer.toString(minValue + 1), |
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Integer.toString((minValue + 100) / 2), |
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"99", "100" |
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}; |
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DynamicVMOption option = new DynamicVMOption("MaxHeapFreeRatio");
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assertTrue(option.isWriteable(), "Option " + option.name |
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+ " is expected to be writable"); |
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for (String v : badValues) {
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assertFalse(option.isValidValue(v), |
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"'" + v + "' is expected to be illegal for flag " + option.name); |
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} |
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for (String v : goodValues) {
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option.setValue(v); |
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String newValue = option.getValue(); |
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assertEQ(v, newValue); |
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} |
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} |
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} |