1 /*
   2  * Copyright (c) 2011, 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
  27  *
  28  * @summary converted from VM Testbase vm/mlvm/indy/stress/java/relinkVolatileCallSite.
  29  * VM Testbase keywords: [feature_mlvm, nonconcurrent, quarantine]
  30  * VM Testbase comments: 8079664
  31  * VM Testbase readme:
  32  * DESCRIPTION
  33  *    The test creates a volatile call site and relinks it from one thread while calling target from
  34  *    the other one.
  35  *    The test verifies that target changes in the call site are eventually seen by target calling
  36  *    thread by comparing the number of just called target with "golden" one, supplied by target
  37  *    relinking thread.
  38  *    For internal synchronization between the threads the test uses a non-volatile variable
  39  *    without any synchronized() statements or java.util.concurrent classes.
  40  *    The test artificially loses synchronization sometimes to verify that test logic is correct.
  41  *
  42  * @library /vmTestbase
  43  *          /test/lib
  44  * @run driver jdk.test.lib.FileInstaller . .
  45  *
  46  * @comment build test class and indify classes
  47  * @build vm.mlvm.indy.stress.java.relinkVolatileCallSite.Test
  48  * @run driver vm.mlvm.share.IndifiedClassesBuilder
  49  *
  50  * @run main/othervm
  51  *      vm.mlvm.indy.stress.java.relinkVolatileCallSite.Test
  52  *      -stressIterationsFactor 100000
  53  */
  54 
  55 package vm.mlvm.indy.stress.java.relinkVolatileCallSite;
  56 
  57 import java.lang.invoke.CallSite;
  58 import java.lang.invoke.MethodHandle;
  59 import java.lang.invoke.VolatileCallSite;
  60 
  61 import vm.mlvm.indy.share.INDIFY_RelinkCallSiteTest;
  62 import vm.mlvm.share.MlvmTest;
  63 
  64 public class Test extends INDIFY_RelinkCallSiteTest {
  65 
  66     @Override
  67     protected CallSite createCallSite(MethodHandle mh) {
  68         return new VolatileCallSite(mh);
  69     }
  70 
  71     public static void main(String[] args) { MlvmTest.launch(args); }
  72 }