1 /* 2 * Copyright (c) 2013, 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* 25 * @test TestInitialTenuringThreshold 26 * @key gc 27 * @bug 8014765 28 * @requires vm.gc=="Parallel" 29 * @summary Tests argument processing for initial tenuring threshold 30 * @library /testlibrary 31 * @modules java.base/sun.misc 32 * java.management 33 * @run main/othervm TestInitialTenuringThreshold 34 * @author thomas.schatzl@oracle.com 35 */ 36 37 import jdk.test.lib.*; 38 39 public class TestInitialTenuringThreshold { 40 41 public static void runWithThresholds(int initial, int max, boolean shouldfail) throws Exception { 42 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( 43 "-XX:+UseParallelGC", 44 "-XX:InitialTenuringThreshold=" + String.valueOf(initial), 45 "-XX:MaxTenuringThreshold=" + String.valueOf(max), 46 "-version" 47 ); 48 49 OutputAnalyzer output = new OutputAnalyzer(pb.start()); 50 if (shouldfail) { 51 output.shouldHaveExitValue(1); 52 } else { 53 output.shouldHaveExitValue(0); 54 } 55 } 56 57 58 public static void main(String args[]) throws Exception { 59 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( 60 // some value below the default value of InitialTenuringThreshold of 7 61 "-XX:MaxTenuringThreshold=1", 62 "-version" 63 ); 64 65 OutputAnalyzer output = new OutputAnalyzer(pb.start()); 66 output.shouldHaveExitValue(0); 67 // successful tests 68 runWithThresholds(0, 10, false); 69 runWithThresholds(5, 5, false); 70 runWithThresholds(8, 16, false); 71 // failing tests 72 runWithThresholds(10, 0, true); 73 runWithThresholds(9, 8, true); 74 runWithThresholds(-1, 8, true); 75 runWithThresholds(0, -1, true); 76 runWithThresholds(8, -1, true); 77 runWithThresholds(16, 8, true); 78 runWithThresholds(8, 17, true); 79 } 80 }