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