1 /* 2 * Copyright (c) 2018, 2019, 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 TestClassUnloadingArguments 27 * @summary Test that loop mining arguments are sane 28 * @requires vm.gc.Shenandoah & !vm.graal.enabled 29 * @library /test/lib 30 * @run driver TestClassUnloadingArguments 31 */ 32 33 import java.util.*; 34 35 import jdk.test.lib.Asserts; 36 import jdk.test.lib.process.ProcessTools; 37 import jdk.test.lib.process.OutputAnalyzer; 38 39 public class TestClassUnloadingArguments { 40 41 public static void testWith(String msg, boolean cu, boolean cuConc, String... args) throws Exception { 42 String[] cmds = Arrays.copyOf(args, args.length + 2); 43 cmds[args.length] = "-XX:+PrintFlagsFinal"; 44 cmds[args.length + 1] = "-version"; 45 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(cmds); 46 OutputAnalyzer output = new OutputAnalyzer(pb.start()); 47 output.shouldHaveExitValue(0); 48 output.shouldContain("ClassUnloading"); 49 output.shouldContain("ClassUnloadingWithConcurrentMark"); 50 51 Asserts.assertEQ(output.firstMatch("(.+?) ClassUnloading.+?= (.+?) (.+?)", 2), 52 Boolean.toString(cu), 53 msg + ", but got wrong ClassUnloading"); 54 Asserts.assertEQ(output.firstMatch("(.+?) ClassUnloadingWithConcurrentMark.+?= (.+?) (.+?)", 2), 55 Boolean.toString(cuConc), 56 msg + ", but got wrong ClassUnloadingWithConcurrentMark"); 57 } 58 59 public static void main(String[] args) throws Exception { 60 testDefaultGC(); 61 testShenandoah(); 62 } 63 64 public static void testDefaultGC() throws Exception { 65 testWith("Default GC should have class unloading enabled", 66 true, true); 67 68 testWith("Default GC should disable everything", 69 false, false, 70 "-XX:-ClassUnloading"); 71 72 testWith("Default GC should disable conc unload", 73 true, false, 74 "-XX:-ClassUnloadingWithConcurrentMark"); 75 76 testWith("Default GC should not let conc unload to be enabled separately", 77 false, false, 78 "-XX:-ClassUnloading", 79 "-XX:+ClassUnloadingWithConcurrentMark"); 80 } 81 82 public static void testShenandoah() throws Exception { 83 testWith("Shenandoah GC should have class unloading enabled", 84 true, true, 85 "-XX:+UnlockExperimentalVMOptions", 86 "-XX:+UseShenandoahGC"); 87 88 testWith("Shenandoah GC should disable everything", 89 false, false, 90 "-XX:+UnlockExperimentalVMOptions", 91 "-XX:+UseShenandoahGC", 92 "-XX:-ClassUnloading"); 93 94 testWith("Shenandoah GC should enable conc unload", 95 true, true, 96 "-XX:+UnlockExperimentalVMOptions", 97 "-XX:+UseShenandoahGC", 98 "-XX:+ClassUnloadingWithConcurrentMark"); 99 100 testWith("Shenandoah GC should not let conc unload to be enabled separately", 101 false, false, 102 "-XX:+UnlockExperimentalVMOptions", 103 "-XX:+UseShenandoahGC", 104 "-XX:-ClassUnloading", 105 "-XX:+ClassUnloadingWithConcurrentMark"); 106 } 107 108 }