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/relinkMutableCallSiteFreq. 29 * VM Testbase keywords: [feature_mlvm, nonconcurrent] 30 * 31 * @library /vmTestbase 32 * /test/lib 33 * @run driver jdk.test.lib.FileInstaller . . 34 * 35 * @comment build test class and indify classes 36 * @build vm.mlvm.indy.stress.java.relinkMutableCallSiteFreq.Test 37 * @run driver vm.mlvm.share.IndifiedClassesBuilder 38 * 39 * @run main/othervm vm.mlvm.indy.stress.java.relinkMutableCallSiteFreq.Test 40 */ 41 42 package vm.mlvm.indy.stress.java.relinkMutableCallSiteFreq; 43 44 import java.lang.invoke.CallSite; 45 import java.lang.invoke.MethodHandle; 46 import java.lang.invoke.MutableCallSite; 47 48 import vm.mlvm.indy.share.INDIFY_RelinkCallSiteFreqTest; 49 import vm.mlvm.share.MlvmTest; 50 51 /** 52 * The test creates a mutable call site and relinks it from one thread while calling the current 53 * target from the other one. Currently there are 6 targets. 54 55 * The test verifies that target changes in the call site are eventually seen by target calling 56 * thread by measuring a frequency of calls for each target and comparing it with theoretical frequency. 57 * 58 */ 59 public class Test extends INDIFY_RelinkCallSiteFreqTest { 60 61 @Override 62 protected CallSite createCallSite(MethodHandle mh) { 63 return new MutableCallSite(mh); 64 } 65 66 /** 67 * Runs the test. 68 * @param args Arguments to the test. 69 */ 70 public static void main(String[] args) { 71 MlvmTest.launch(args); 72 } 73 }