1 /* 2 * Copyright (c) 2017, 2019, 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 25 /* 26 * @test 27 * @summary When dumping the CDS archive, try to cause garbage collection while classes are being loaded. 28 * @library /test/lib /test/hotspot/jtreg/runtime/cds/appcds /test/hotspot/jtreg/runtime/cds/appcds/test-classes 29 * @requires vm.cds 30 * @requires vm.flavor != "minimal" 31 * @run driver GCDuringDump 32 */ 33 34 import jdk.test.lib.cds.CDSOptions; 35 import jdk.test.lib.process.OutputAnalyzer; 36 import jdk.test.lib.process.ProcessTools; 37 38 public class GCDuringDump { 39 public static String appClasses[] = { 40 Hello.class.getName(), 41 }; 42 public static String agentClasses[] = { 43 GCDuringDumpTransformer.class.getName(), 44 }; 45 46 public static void main(String[] args) throws Throwable { 47 String agentJar = 48 ClassFileInstaller.writeJar("GCDuringDumpTransformer.jar", 49 ClassFileInstaller.Manifest.fromSourceFile("GCDuringDumpTransformer.mf"), 50 agentClasses); 51 52 String appJar = 53 ClassFileInstaller.writeJar("GCDuringDumpApp.jar", appClasses); 54 55 String gcLog = Boolean.getBoolean("test.cds.verbose.gc") ? 56 "-Xlog:gc*=info,gc+region=trace,gc+alloc+region=debug" : "-showversion"; 57 58 for (int i=0; i<2; i++) { 59 // i = 0 -- run without agent = no extra GCs 60 // i = 1 -- run with agent = cause extra GCs 61 62 String extraArg = (i == 0) ? "-showversion" : "-javaagent:" + agentJar; 63 String extraOption = (i == 0) ? "-showversion" : "-XX:+AllowArchivingWithJavaAgent"; 64 65 TestCommon.testDump(appJar, TestCommon.list(Hello.class.getName()), 66 "-XX:+UnlockDiagnosticVMOptions", extraOption, 67 extraArg, "-Xmx32m", gcLog); 68 69 TestCommon.run( 70 "-cp", appJar, 71 "-Xmx32m", 72 "-XX:+PrintSharedSpaces", 73 "-XX:+UnlockDiagnosticVMOptions", extraOption, 74 gcLog, 75 Hello.class.getName()) 76 .assertNormalExit(); 77 } 78 } 79 } 80