1 /* 2 * Copyright (c) 2017, 2018, Red Hat, Inc. 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 /* 26 * @test TestHeuristicsUnlock 27 * @summary Test that Shenandoah heuristics are unlocked properly 28 * @key gc 29 * @requires vm.gc.Shenandoah & !vm.graal.enabled 30 * @library /test/lib 31 * @modules java.base/jdk.internal.misc 32 * java.management 33 * @run driver TestHeuristicsUnlock 34 */ 35 36 import jdk.test.lib.process.ProcessTools; 37 import jdk.test.lib.process.OutputAnalyzer; 38 39 public class TestHeuristicsUnlock { 40 41 enum Mode { 42 PRODUCT, 43 DIAGNOSTIC, 44 EXPERIMENTAL, 45 } 46 47 public static void main(String[] args) throws Exception { 48 testWith("-XX:ShenandoahGCHeuristics=adaptive", Mode.PRODUCT); 49 testWith("-XX:ShenandoahGCHeuristics=static", Mode.PRODUCT); 50 testWith("-XX:ShenandoahGCHeuristics=compact", Mode.PRODUCT); 51 testWith("-XX:ShenandoahGCHeuristics=aggressive", Mode.DIAGNOSTIC); 52 } 53 54 private static void testWith(String h, Mode mode) throws Exception { 55 if (false) { // When ShenandoahGC is experimental flag, this makes no sense to test 56 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( 57 "-XX:-UnlockDiagnosticVMOptions", 58 "-XX:-UnlockExperimentalVMOptions", 59 "-XX:+UseShenandoahGC", 60 h, 61 "-version" 62 ); 63 OutputAnalyzer output = new OutputAnalyzer(pb.start()); 64 switch (mode) { 65 case PRODUCT: 66 output.shouldHaveExitValue(0); 67 break; 68 case DIAGNOSTIC: 69 case EXPERIMENTAL: 70 output.shouldNotHaveExitValue(0); 71 break; 72 } 73 } 74 75 if (false) { // When ShenandoahGC is experimental flag, this makes no sense to test 76 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( 77 "-XX:+UnlockDiagnosticVMOptions", 78 "-XX:-UnlockExperimentalVMOptions", 79 "-XX:+UseShenandoahGC", 80 h, 81 "-version" 82 ); 83 OutputAnalyzer output = new OutputAnalyzer(pb.start()); 84 switch (mode) { 85 case PRODUCT: 86 case DIAGNOSTIC: 87 output.shouldHaveExitValue(0); 88 break; 89 case EXPERIMENTAL: 90 output.shouldNotHaveExitValue(0); 91 break; 92 } 93 } 94 95 { 96 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( 97 "-XX:-UnlockDiagnosticVMOptions", 98 "-XX:+UnlockExperimentalVMOptions", 99 "-XX:+UseShenandoahGC", 100 h, 101 "-version" 102 ); 103 OutputAnalyzer output = new OutputAnalyzer(pb.start()); 104 switch (mode) { 105 case PRODUCT: 106 case EXPERIMENTAL: 107 output.shouldHaveExitValue(0); 108 break; 109 case DIAGNOSTIC: 110 output.shouldNotHaveExitValue(0); 111 break; 112 } 113 } 114 } 115 116 }