1 /* 2 * Copyright (c) 2014, 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 CommandLineFlagCombo 27 * @requires vm.cds.archived.java.heap 28 * @comment This test explicitly chooses the type of GC to be used by sub-processes. It may conflict with the GC type set 29 * via the -vmoptions command line option of JTREG. vm.gc==null will help the test case to discard the explicitly passed 30 * vm options. 31 * @requires (vm.gc=="null") 32 * @summary Test command line flag combinations that 33 * could likely affect the behaviour of AppCDS 34 * @library /test/lib 35 * @modules java.base/jdk.internal.misc 36 * java.management 37 * jdk.jartool/sun.tools.jar 38 * @build sun.hotspot.WhiteBox 39 * @run driver ClassFileInstaller sun.hotspot.WhiteBox sun.hotspot.WhiteBox$WhiteBoxPermission 40 * @compile test-classes/Hello.java 41 * @run main/othervm/timeout=240 -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:. CommandLineFlagCombo 42 */ 43 44 import jdk.test.lib.BuildHelper; 45 import jdk.test.lib.Platform; 46 import jdk.test.lib.process.OutputAnalyzer; 47 48 import sun.hotspot.code.Compiler; 49 50 public class CommandLineFlagCombo { 51 52 // shared base address test table 53 private static final String[] testTable = { 54 "-XX:+UseG1GC", "-XX:+UseSerialGC", "-XX:+UseParallelGC", "-XX:+UseConcMarkSweepGC", 55 "-XX:+FlightRecorder", 56 "-XX:+UseLargePages", // may only take effect on machines with large-pages 57 "-XX:+UseCompressedClassPointers", 58 "-XX:+UseCompressedOops", 59 "-XX:ObjectAlignmentInBytes=16", 60 "-XX:ObjectAlignmentInBytes=32", 61 "-XX:ObjectAlignmentInBytes=64" 62 }; 63 64 public static void main(String[] args) throws Exception { 65 String appJar = JarBuilder.getOrCreateHelloJar(); 66 String classList[] = {"Hello"}; 67 68 for (String testEntry : testTable) { 69 System.out.println("CommandLineFlagCombo = " + testEntry); 70 71 if (skipTestCase(testEntry)) 72 continue; 73 74 OutputAnalyzer dumpOutput = TestCommon.dump(appJar, classList, testEntry); 75 TestCommon.checkDump(dumpOutput, "Loading classes to share"); 76 77 OutputAnalyzer execOutput = TestCommon.exec(appJar, testEntry, "Hello"); 78 TestCommon.checkExec(execOutput, "Hello World"); 79 } 80 81 for (int i=0; i<2; i++) { 82 String g1Flag, serialFlag; 83 84 // Interned strings are supported only with G1GC. However, we should not crash if: 85 // 0: archive has shared strings, but run time doesn't support shared strings 86 // 1: archive has no shared strings, but run time supports shared strings 87 88 String dump_g1Flag = "-XX:" + (i == 0 ? "+" : "-") + "UseG1GC"; 89 String run_g1Flag = "-XX:" + (i != 0 ? "+" : "-") + "UseG1GC"; 90 String dump_serialFlag = "-XX:" + (i != 0 ? "+" : "-") + "UseSerialGC"; 91 String run_serialFlag = "-XX:" + (i == 0 ? "+" : "-") + "UseSerialGC"; 92 93 OutputAnalyzer dumpOutput = TestCommon.dump( 94 appJar, classList, dump_g1Flag, dump_serialFlag); 95 96 TestCommon.checkDump(dumpOutput, "Loading classes to share"); 97 98 OutputAnalyzer execOutput = TestCommon.exec(appJar, run_g1Flag, run_serialFlag, "Hello"); 99 TestCommon.checkExec(execOutput, "Hello World"); 100 } 101 } 102 103 private static boolean skipTestCase(String testEntry) throws Exception { 104 if (Platform.is32bit()) 105 { 106 if (testEntry.equals("-XX:+UseCompressedOops") || 107 testEntry.equals("-XX:+UseCompressedClassPointers") || 108 testEntry.contains("ObjectAlignmentInBytes") ) 109 { 110 System.out.println("Test case not applicable on 32-bit platforms"); 111 return true; 112 } 113 } 114 115 if (Compiler.isGraalEnabled() && testEntry.equals("-XX:+UseConcMarkSweepGC")) 116 { 117 System.out.println("Graal does not support CMS"); 118 return true; 119 } 120 121 return false; 122 } 123 }