1 /* 2 * Copyright (c) 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 TestObjIterWithHeapDump 27 * @summary Test heap dump triggered heap object iteration 28 * @key gc 29 * @bug 8225014 30 * @requires vm.gc.Shenandoah & !vm.graal.enabled 31 * @library /test/lib 32 * @run driver TestObjItrWithHeapDump 33 */ 34 35 import java.util.*; 36 37 import jdk.test.lib.process.ProcessTools; 38 import jdk.test.lib.process.OutputAnalyzer; 39 40 public class TestObjItrWithHeapDump { 41 public static void testWith(String... args) throws Exception { 42 String[] cmds = Arrays.copyOf(args, args.length + 2); 43 cmds[args.length] = TestObjItrWithHeapDump.class.getName(); 44 cmds[args.length + 1] = "test"; 45 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(cmds); 46 47 OutputAnalyzer output = new OutputAnalyzer(pb.start()); 48 output.shouldHaveExitValue(0); 49 output.shouldContain("Class Histogram (before full gc)"); 50 output.shouldContain("Class Histogram (after full gc)"); 51 } 52 53 public static void main(String[] args) throws Exception { 54 if (args.length > 0 && args[0].equals("test")) { 55 System.gc(); 56 System.exit(0); 57 } 58 59 String[][][] modeHeuristics = new String[][][] { 60 {{"normal"}, {"adaptive", "compact", "static", "aggressive"}}, 61 {{"iu"}, {"adaptive", "aggressive"}}, 62 {{"passive"}, {"passive"}} 63 }; 64 65 for (String[][] mh : modeHeuristics) { 66 String mode = mh[0][0]; 67 String[] heuristics = mh[1]; 68 for (String h : heuristics) { 69 testWith("-XX:+UnlockDiagnosticVMOptions", 70 "-XX:+UnlockExperimentalVMOptions", 71 "-XX:+UseShenandoahGC", 72 "-XX:-ShenandoahDegeneratedGC", 73 "-XX:ShenandoahGCMode=" + mode, 74 "-XX:ShenandoahGCHeuristics=" + h, 75 "-Xlog:gc+classhisto=trace", 76 "-XX:-ExplicitGCInvokesConcurrent", 77 "-Xmx512M" 78 ); 79 } 80 } 81 } 82 }