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 }