1 /* 2 * Copyright (c) 2017, 2018, 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 Similar to GCDuringDumping.java, this test adds the -XX:SharedArchiveConfigFile 28 * option for testing the interaction with GC and shared strings. 29 * @library /test/lib /test/hotspot/jtreg/runtime/appcds /test/hotspot/jtreg/runtime/appcds/test-classes 30 * @requires vm.cds.archived.java.heap 31 * @modules java.base/jdk.internal.misc 32 * jdk.jartool/sun.tools.jar 33 * java.management 34 * @build sun.hotspot.WhiteBox GCDuringDumpTransformer GCSharedStringsDuringDumpWb 35 * @run driver ClassFileInstaller sun.hotspot.WhiteBox 36 * @run main/othervm/timeout=480 GCSharedStringsDuringDump 37 */ 38 39 import java.io.File; 40 import java.io.FileOutputStream; 41 import java.io.OutputStreamWriter; 42 import java.io.PrintWriter; 43 import jdk.test.lib.cds.CDSOptions; 44 import jdk.test.lib.process.OutputAnalyzer; 45 import jdk.test.lib.process.ProcessTools; 46 import sun.hotspot.WhiteBox; 47 48 public class GCSharedStringsDuringDump { 49 public static String appClasses[] = { 50 "GCSharedStringsDuringDumpWb", 51 }; 52 public static String agentClasses[] = { 53 "GCDuringDumpTransformer", 54 }; 55 56 public static void main(String[] args) throws Throwable { 57 String agentJar = 58 ClassFileInstaller.writeJar("GCDuringDumpTransformer.jar", 59 ClassFileInstaller.Manifest.fromSourceFile("GCDuringDumpTransformer.mf"), 60 agentClasses); 61 62 String appJar = 63 ClassFileInstaller.writeJar("GCSharedStringsDuringDumpApp.jar", appClasses); 64 65 String gcLog = "-Xlog:gc*=info,gc+region=trace,gc+alloc+region=debug"; 66 67 String sharedArchiveCfgFile = 68 System.getProperty("user.dir") + File.separator + "GCSharedStringDuringDump_gen.txt"; 69 try (FileOutputStream fos = new FileOutputStream(sharedArchiveCfgFile)) { 70 PrintWriter out = new PrintWriter(new OutputStreamWriter(fos)); 71 out.println("VERSION: 1.0"); 72 out.println("@SECTION: String"); 73 out.println("31: shared_test_string_unique_14325"); 74 for (int i=0; i<100000; i++) { 75 String s = "generated_string " + i; 76 out.println(s.length() + ": " + s); 77 } 78 out.close(); 79 } 80 81 JarBuilder.build(true, "WhiteBox", "sun/hotspot/WhiteBox"); 82 String whiteBoxJar = TestCommon.getTestJar("WhiteBox.jar"); 83 String bootClassPath = "-Xbootclasspath/a:" + whiteBoxJar; 84 85 for (int i=0; i<2; i++) { 86 // i = 0 -- run without agent = no extra GCs 87 // i = 1 -- run with agent = cause extra GCs 88 89 String extraArg = (i == 0) ? "-showversion" : "-javaagent:" + agentJar; 90 91 OutputAnalyzer output = TestCommon.dump( 92 appJar, TestCommon.list("GCSharedStringsDuringDumpWb"), 93 bootClassPath, extraArg, "-Xmx32m", gcLog, 94 "-XX:SharedArchiveConfigFile=" + sharedArchiveCfgFile); 95 96 if (output.getStdout().contains("Too many string space regions") || 97 output.getStderr().contains("Unable to write archive heap memory regions") || 98 output.getStdout().contains("Try increasing NewSize") || 99 !output.getStdout().contains("oa0 space:") || 100 output.getExitValue() != 0) { 101 // Try again with larger heap and NewSize, this should increase the 102 // G1 heap region size to 2M 103 TestCommon.testDump( 104 appJar, TestCommon.list("GCSharedStringsDuringDumpWb"), 105 bootClassPath, extraArg, "-Xmx8g", "-XX:NewSize=8m", gcLog, 106 "-XX:SharedArchiveConfigFile=" + sharedArchiveCfgFile); 107 } 108 109 TestCommon.run( 110 "-cp", appJar, 111 bootClassPath, 112 "-Xmx32m", 113 "-XX:+PrintSharedSpaces", 114 "-XX:+UnlockDiagnosticVMOptions", 115 "-XX:+WhiteBoxAPI", 116 "-XX:SharedReadOnlySize=30m", 117 gcLog, 118 "GCSharedStringsDuringDumpWb") 119 .assertNormalExit(); 120 } 121 } 122 } 123