1 /* 2 * Copyright (c) 2016, 2020, Oracle and/or its affiliates. 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 package gc.g1; 25 26 /** 27 * @test 28 * @bug 8169703 29 * @summary Verifies that dumping and loading a CDS archive succeeds with AlwaysPreTouch 30 * @requires vm.gc.G1 31 * @requires vm.cds 32 * @library /test/lib 33 * @modules java.base/jdk.internal.misc 34 * java.management 35 * @run driver gc.g1.TestSharedArchiveWithPreTouch 36 */ 37 38 import java.util.List; 39 import java.util.ArrayList; 40 import java.util.Arrays; 41 42 import jdk.test.lib.Platform; 43 import jdk.test.lib.process.ProcessTools; 44 import jdk.test.lib.process.OutputAnalyzer; 45 46 public class TestSharedArchiveWithPreTouch { 47 public static void main(String[] args) throws Exception { 48 final String ArchiveFileName = "./SharedArchiveWithPreTouch.jsa"; 49 50 final List<String> BaseOptions = Arrays.asList(new String[] {"-XX:+UseG1GC", "-XX:+AlwaysPreTouch", 51 "-XX:+UnlockDiagnosticVMOptions", "-XX:SharedArchiveFile=" + ArchiveFileName }); 52 53 ProcessBuilder pb; 54 55 List<String> dump_args = new ArrayList<String>(BaseOptions); 56 57 if (Platform.is64bit()) { 58 dump_args.addAll(0, Arrays.asList(new String[] { "-XX:+UseCompressedClassPointers", "-XX:+UseCompressedOops" })); 59 } 60 dump_args.addAll(Arrays.asList(new String[] { "-Xshare:dump", "-Xlog:cds*", "-Xlog:metaspace*" })); 61 62 pb = ProcessTools.createJavaProcessBuilder(dump_args); 63 OutputAnalyzer output = new OutputAnalyzer(pb.start()); 64 output.reportDiagnosticSummary(); 65 try { 66 output.shouldContain("Loading classes to share"); 67 output.shouldHaveExitValue(0); 68 69 List<String> load_args = new ArrayList<String>(BaseOptions); 70 71 if (Platform.is64bit()) { 72 load_args.addAll(0, Arrays.asList(new String[] { "-XX:+UseCompressedClassPointers", "-XX:+UseCompressedOops" })); 73 } 74 load_args.addAll(Arrays.asList(new String[] { "-Xshare:on", "-Xlog:cds*", "-Xlog:metaspace*", "-version" })); 75 76 pb = ProcessTools.createJavaProcessBuilder(load_args.toArray(new String[0])); 77 output = new OutputAnalyzer(pb.start()); 78 output.reportDiagnosticSummary(); 79 output.shouldContain("sharing"); 80 output.shouldHaveExitValue(0); 81 } catch (RuntimeException e) { 82 // Report 'passed' if CDS was turned off. 83 output.shouldContain("Unable to use shared archive"); 84 output.shouldHaveExitValue(1); 85 } 86 } 87 }