1 /*
   2  * Copyright (c) 2013, 2017, 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  * @test
  26  * @bug 8005933
  27  * @summary Test that -Xshare:auto uses CDS when explicitly specified with -server.
  28  * @library /test/lib
  29  * @modules java.base/jdk.internal.misc
  30  *          java.management
  31  * @run main XShareAuto
  32  */
  33 
  34 import jdk.test.lib.Platform;
  35 import jdk.test.lib.process.ProcessTools;
  36 import jdk.test.lib.process.OutputAnalyzer;
  37 
  38 public class XShareAuto {
  39     public static void main(String[] args) throws Exception {
  40         ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  41             "-server", "-XX:+UnlockDiagnosticVMOptions",
  42             "-XX:SharedArchiveFile=./XShareAuto.jsa", "-Xshare:dump");
  43         OutputAnalyzer output = new OutputAnalyzer(pb.start());
  44         output.shouldContain("Loading classes to share");
  45         output.shouldHaveExitValue(0);
  46 
  47         pb = ProcessTools.createJavaProcessBuilder(
  48             "-server", "-XX:+UnlockDiagnosticVMOptions",
  49             "-XX:SharedArchiveFile=./XShareAuto.jsa", "-version");
  50         output = new OutputAnalyzer(pb.start());
  51         String outputString = output.getOutput();
  52         // We asked for server but it could be aliased to something else
  53         if (outputString.contains("Server VM") && !outputString.contains("emulated-client")) {
  54             // In server case we don't expect to see sharing flag
  55             output.shouldNotContain("sharing");
  56             output.shouldHaveExitValue(0);
  57         }
  58         else {
  59             System.out.println("Skipping test - no Server VM available");
  60             return;
  61         }
  62 
  63         pb = ProcessTools.createJavaProcessBuilder(
  64             "-server", "-Xshare:auto", "-XX:+UnlockDiagnosticVMOptions",
  65             "-XX:SharedArchiveFile=./XShareAuto.jsa", "-Xlog:cds", "-version");
  66         output = new OutputAnalyzer(pb.start());
  67         try {
  68             output.shouldContain("sharing");
  69         } catch (RuntimeException e) {
  70             // if sharing failed due to ASLR or similar reasons,
  71             // check whether sharing was attempted at all (UseSharedSpaces)
  72             output.shouldContain("UseSharedSpaces:");
  73             output.shouldNotContain("Unable to map %s");
  74         }
  75         output.shouldHaveExitValue(0);
  76     }
  77 }