1 /*
   2  * Copyright (c) 2013, 2019, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
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   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  *
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  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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  23 
  24 /**
  25  * @test
  26  * @requires vm.cds
  27  * @bug 8003424
  28  * @summary Testing UseCompressedClassPointers with CDS
  29  * @library /test/lib
  30  * @modules java.base/jdk.internal.misc
  31  *          java.management
  32  * @run driver CDSCompressedKPtrs
  33  */
  34 
  35 import jdk.test.lib.Platform;
  36 import jdk.test.lib.process.ProcessTools;
  37 import jdk.test.lib.process.OutputAnalyzer;
  38 
  39 public class CDSCompressedKPtrs {
  40   public static void main(String[] args) throws Exception {
  41     ProcessBuilder pb;
  42     if (Platform.is64bit()) {
  43       pb = ProcessTools.createJavaProcessBuilder(
  44         "-XX:+UseCompressedClassPointers", "-XX:+UseCompressedOops",
  45         "-XX:+UnlockDiagnosticVMOptions", "-XX:SharedArchiveFile=./CDSCompressedKPtrs.jsa", "-Xshare:dump", "-Xlog:cds");
  46       OutputAnalyzer output = new OutputAnalyzer(pb.start());
  47       try {
  48         output.shouldContain("Loading classes to share");
  49         output.shouldHaveExitValue(0);
  50 
  51         pb = ProcessTools.createJavaProcessBuilder(
  52           "-XX:+UseCompressedClassPointers", "-XX:+UseCompressedOops",
  53           "-XX:+UnlockDiagnosticVMOptions", "-XX:SharedArchiveFile=./CDSCompressedKPtrs.jsa", "-Xshare:on", "-version");
  54         output = new OutputAnalyzer(pb.start());
  55         output.shouldContain("sharing");
  56         output.shouldHaveExitValue(0);
  57 
  58       } catch (RuntimeException e) {
  59         // Report 'passed' if CDS was turned off.
  60         output.shouldContain("Unable to use shared archive");
  61         output.shouldHaveExitValue(1);
  62       }
  63     }
  64   }
  65 }