1 /*
   2  * Copyright (c) 2015, 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 import jdk.test.lib.process.ProcessTools;
  25 import jdk.test.lib.process.OutputAnalyzer;
  26 import jdk.test.lib.cli.*;
  27 
  28 /*
  29  * @test
  30  * @bug 8061611
  31  * @summary Test that various alias options correctly set the target options. See aliased_jvm_flags in arguments.cpp.
  32  * @modules java.base/jdk.internal.misc
  33  * @library /test/lib
  34  */
  35 public class VMAliasOptions {
  36 
  37     /**
  38      * each entry is {[0]: alias name, [1]: alias target, [2]: value to set
  39      * (true/false/n/string)}.
  40      */
  41     public static final String[][] ALIAS_OPTIONS = {
  42         {"DefaultMaxRAMFraction",   "MaxRAMFraction", "1032"},
  43         {"CMSMarkStackSizeMax",     "MarkStackSizeMax", "1032"},
  44         {"CMSMarkStackSize",        "MarkStackSize", "1032"},
  45         {"G1MarkStackSize",         "MarkStackSize", "1032"},
  46         {"ParallelMarkingThreads",  "ConcGCThreads", "2"},
  47         {"ParallelCMSThreads",      "ConcGCThreads", "2"},
  48         {"CreateMinidumpOnCrash",   "CreateCoredumpOnCrash", "false" },
  49     };
  50 
  51     static void testAliases(String[][] optionInfo) throws Throwable {
  52         String aliasNames[]     = new String[optionInfo.length];
  53         String optionNames[]    = new String[optionInfo.length];
  54         String expectedValues[] = new String[optionInfo.length];
  55         for (int i = 0; i < optionInfo.length; i++) {
  56             aliasNames[i]     = optionInfo[i][0];
  57             optionNames[i]    = optionInfo[i][1];
  58             expectedValues[i] = optionInfo[i][2];
  59         }
  60 
  61         OutputAnalyzer output = CommandLineOptionTest.startVMWithOptions(aliasNames, expectedValues, "-XX:+PrintFlagsFinal");
  62         CommandLineOptionTest.verifyOptionValuesFromOutput(output, optionNames, expectedValues);
  63     }
  64 
  65     public static void main(String[] args) throws Throwable {
  66         testAliases(ALIAS_OPTIONS);
  67     }
  68 }