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 52 testWith("-XX:ShenandoahGCMode=iu", Mode.EXPERIMENTAL); 53 54 testWith("-XX:ShenandoahGCHeuristics=aggressive", Mode.DIAGNOSTIC); 55 testWith("-XX:ShenandoahGCHeuristics=passive", Mode.DIAGNOSTIC); 56 } 57 58 private static void testWith(String h, Mode mode) throws Exception { 59 if (false) { // When ShenandoahGC is experimental flag, this makes no sense to test 60 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( 61 "-XX:-UnlockDiagnosticVMOptions", 62 "-XX:-UnlockExperimentalVMOptions", 63 "-XX:+UseShenandoahGC", 64 h, 65 "-version" 66 ); 67 OutputAnalyzer output = new OutputAnalyzer(pb.start()); 68 switch (mode) { 69 case PRODUCT: 70 output.shouldHaveExitValue(0); 71 break; 72 case DIAGNOSTIC: 73 case EXPERIMENTAL: 74 output.shouldNotHaveExitValue(0); 75 break; 76 } 77 } 78 79 if (false) { // When ShenandoahGC is experimental flag, this makes no sense to test 80 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( 81 "-XX:+UnlockDiagnosticVMOptions", 82 "-XX:-UnlockExperimentalVMOptions", 83 "-XX:+UseShenandoahGC", 84 h, 85 "-version" 86 ); 87 OutputAnalyzer output = new OutputAnalyzer(pb.start()); 88 switch (mode) { 89 case PRODUCT: 90 case DIAGNOSTIC: 91 output.shouldHaveExitValue(0); 92 break; 93 case EXPERIMENTAL: 94 output.shouldNotHaveExitValue(0); 95 break; 96 } 97 } 98 99 { 100 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( 101 "-XX:-UnlockDiagnosticVMOptions", 102 "-XX:+UnlockExperimentalVMOptions", 103 "-XX:+UseShenandoahGC", 104 h, 105 "-version" 106 ); 107 OutputAnalyzer output = new OutputAnalyzer(pb.start()); 108 switch (mode) { 109 case PRODUCT: 110 case EXPERIMENTAL: 111 output.shouldHaveExitValue(0); 112 break; 113 case DIAGNOSTIC: 114 output.shouldNotHaveExitValue(0); 115 break; 116 } 117 } 118 } 119 120 }