1 /*

     2  * Copyright (c) 2014, 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 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             if (!TestCommon.isDynamicArchive()) {

    76                 TestCommon.checkDump(dumpOutput, "Loading classes to share");

    77             } else {

    78                 if (testEntry.contains("ObjectAlignmentInBytes")) {

    79                    dumpOutput.shouldHaveExitValue(1)

    80                              .shouldMatch("The shared archive file's ObjectAlignmentInBytes of .* does not equal the current ObjectAlignmentInBytes of");

    81                 } else {

    82                    TestCommon.checkDump(dumpOutput, "Loading classes to share");

    83                 }

    84             }

    85 

    86             if ((TestCommon.isDynamicArchive() && !testEntry.contains("ObjectAlignmentInBytes")) ||

    87                 !TestCommon.isDynamicArchive()) {

    88                 OutputAnalyzer execOutput = TestCommon.exec(appJar, testEntry, "Hello");

    89                 TestCommon.checkExec(execOutput, "Hello World");

    90             }

    91         }

    92 

    93         for (int i=0; i<2; i++) {

    94             String g1Flag, serialFlag;

    95 

    96             // Interned strings are supported only with G1GC. However, we should not crash if:

    97             // 0: archive has shared strings, but run time doesn't support shared strings

    98             // 1: archive has no shared strings, but run time supports shared strings

    99 

   100             String dump_g1Flag     = "-XX:" + (i == 0 ? "+" : "-") + "UseG1GC";

   101             String run_g1Flag      = "-XX:" + (i != 0 ? "+" : "-") + "UseG1GC";

   102             String dump_serialFlag = "-XX:" + (i != 0 ? "+" : "-") + "UseSerialGC";

   103             String run_serialFlag  = "-XX:" + (i == 0 ? "+" : "-") + "UseSerialGC";

   104 

   105             OutputAnalyzer dumpOutput = TestCommon.dump(

   106                appJar, classList, dump_g1Flag, dump_serialFlag);

   107 

   108             TestCommon.checkDump(dumpOutput, "Loading classes to share");

   109 

   110             OutputAnalyzer execOutput = TestCommon.exec(appJar, run_g1Flag, run_serialFlag, "Hello");

   111             TestCommon.checkExec(execOutput, "Hello World");

   112         }

   113     }

   114 

   115     private static boolean skipTestCase(String testEntry) throws Exception {

   116         if (Platform.is32bit())

   117         {

   118             if (testEntry.equals("-XX:+UseCompressedOops") ||

   119                 testEntry.equals("-XX:+UseCompressedClassPointers") ||

   120                 testEntry.contains("ObjectAlignmentInBytes") )

   121             {

   122                 System.out.println("Test case not applicable on 32-bit platforms");

   123                 return true;

   124             }

   125         }

   126 

   127         if (Compiler.isGraalEnabled() && testEntry.equals("-XX:+UseConcMarkSweepGC"))

   128         {

   129             System.out.println("Graal does not support CMS");

   130             return true;

   131         }

   132 

   133         return false;

   134     }

   135 }