1 /* 2 * Copyright (c) 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 TestClassUnloadingArguments 26 * @summary Test that loop mining arguments are sane 27 * @key gc 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 testWith(String msg, boolean cu, boolean cuConc, String... args)41 public static void testWith(String msg, boolean cu, boolean cuConc, String... args) throws Exception { 42 String[] cmds = Arrays.copyOf(args, args.length + 3); 43 cmds[args.length] = "-Xmx128m"; 44 cmds[args.length + 1] = "-XX:+PrintFlagsFinal"; 45 cmds[args.length + 2] = "-version"; 46 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(cmds); 47 OutputAnalyzer output = new OutputAnalyzer(pb.start()); 48 output.shouldHaveExitValue(0); 49 output.shouldContain("ClassUnloading"); 50 output.shouldContain("ClassUnloadingWithConcurrentMark"); 51 52 Asserts.assertEQ(output.firstMatch("(.+?) ClassUnloading.+?= (.+?) (.+?)", 2), 53 Boolean.toString(cu), 54 msg + ", but got wrong ClassUnloading"); 55 Asserts.assertEQ(output.firstMatch("(.+?) ClassUnloadingWithConcurrentMark.+?= (.+?) (.+?)", 2), 56 Boolean.toString(cuConc), 57 msg + ", but got wrong ClassUnloadingWithConcurrentMark"); 58 } 59 main(String[] args)60 public static void main(String[] args) throws Exception { 61 testDefaultGC(); 62 testShenandoah(); 63 } 64 testDefaultGC()65 public static void testDefaultGC() throws Exception { 66 testWith("Default GC should have class unloading enabled", 67 true, true); 68 69 testWith("Default GC should disable everything", 70 false, false, 71 "-XX:-ClassUnloading"); 72 73 testWith("Default GC should disable conc unload", 74 true, false, 75 "-XX:-ClassUnloadingWithConcurrentMark"); 76 77 testWith("Default GC should not let conc unload to be enabled separately", 78 false, false, 79 "-XX:-ClassUnloading", 80 "-XX:+ClassUnloadingWithConcurrentMark"); 81 } 82 testShenandoah()83 public static void testShenandoah() throws Exception { 84 testWith("Shenandoah GC should have class unloading enabled", 85 true, true, 86 "-XX:+UnlockExperimentalVMOptions", 87 "-XX:+UseShenandoahGC"); 88 89 testWith("Shenandoah GC should disable everything", 90 false, false, 91 "-XX:+UnlockExperimentalVMOptions", 92 "-XX:+UseShenandoahGC", 93 "-XX:-ClassUnloading"); 94 95 testWith("Shenandoah GC should enable conc unload", 96 true, true, 97 "-XX:+UnlockExperimentalVMOptions", 98 "-XX:+UseShenandoahGC", 99 "-XX:+ClassUnloadingWithConcurrentMark"); 100 101 testWith("Shenandoah GC should not let conc unload to be enabled separately", 102 false, false, 103 "-XX:+UnlockExperimentalVMOptions", 104 "-XX:+UseShenandoahGC", 105 "-XX:-ClassUnloading", 106 "-XX:+ClassUnloadingWithConcurrentMark"); 107 } 108 109 } 110