1 /* 2 * Copyright (c) 2017, 2018, Red Hat, Inc. All rights reserved. 3 * 4 * This code is free software; you can redistribute it and/or modify it 5 * under the terms of the GNU General Public License version 2 only, as 6 * published by the Free Software Foundation. 7 * 8 * This code is distributed in the hope that it will be useful, but WITHOUT 9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 11 * version 2 for more details (a copy is included in the LICENSE file that 12 * accompanied this code). 13 * 14 * You should have received a copy of the GNU General Public License version 15 * 2 along with this work; if not, write to the Free Software Foundation, 16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 17 * 18 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 19 * or visit www.oracle.com if you need additional information or have any 20 * questions. 21 * 22 */ 23 24 /* 25 * @test TestHeuristicsUnlock 26 * @summary Test that Shenandoah heuristics are unlocked properly 27 * @key gc 28 * @requires vm.gc.Shenandoah & !vm.graal.enabled 29 * @library /test/lib 30 * @modules java.base/jdk.internal.misc 31 * java.management 32 * @run driver TestHeuristicsUnlock 33 */ 34 35 import jdk.test.lib.process.ProcessTools; 36 import jdk.test.lib.process.OutputAnalyzer; 37 38 public class TestHeuristicsUnlock { 39 40 enum Mode { 41 PRODUCT, 42 DIAGNOSTIC, 43 EXPERIMENTAL, 44 } 45 46 public static void main(String[] args) throws Exception { 47 testWith("-XX:ShenandoahGCHeuristics=adaptive", Mode.PRODUCT); 48 testWith("-XX:ShenandoahGCHeuristics=static", Mode.PRODUCT); 49 testWith("-XX:ShenandoahGCHeuristics=compact", Mode.PRODUCT); 50 testWith("-XX:ShenandoahGCHeuristics=aggressive", Mode.DIAGNOSTIC); 51 } 52 53 private static void testWith(String h, Mode mode) throws Exception { 54 { 55 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( 56 "-XX:-UnlockDiagnosticVMOptions", 57 "-XX:-UnlockExperimentalVMOptions", 58 "-XX:+UseShenandoahGC", 59 h, 60 "-version" 61 ); 62 OutputAnalyzer output = new OutputAnalyzer(pb.start()); 63 switch (mode) { 64 case PRODUCT: 65 output.shouldHaveExitValue(0); 66 break; 67 case DIAGNOSTIC: 68 case EXPERIMENTAL: 69 output.shouldNotHaveExitValue(0); 70 break; 71 } 72 } 73 74 { 75 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( 76 "-XX:+UnlockDiagnosticVMOptions", 77 "-XX:-UnlockExperimentalVMOptions", 78 "-XX:+UseShenandoahGC", 79 h, 80 "-version" 81 ); 82 OutputAnalyzer output = new OutputAnalyzer(pb.start()); 83 switch (mode) { 84 case PRODUCT: 85 case DIAGNOSTIC: 86 output.shouldHaveExitValue(0); 87 break; 88 case EXPERIMENTAL: 89 output.shouldNotHaveExitValue(0); 90 break; 91 } 92 } 93 94 { 95 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( 96 "-XX:-UnlockDiagnosticVMOptions", 97 "-XX:+UnlockExperimentalVMOptions", 98 "-XX:+UseShenandoahGC", 99 h, 100 "-version" 101 ); 102 OutputAnalyzer output = new OutputAnalyzer(pb.start()); 103 switch (mode) { 104 case PRODUCT: 105 case EXPERIMENTAL: 106 output.shouldHaveExitValue(0); 107 break; 108 case DIAGNOSTIC: 109 output.shouldNotHaveExitValue(0); 110 break; 111 } 112 } 113 } 114 115 }