/* * Copyright (c) 2021, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ /** * @test * @summary Verifies that a VMObjectAlloc event is generated for object created using MethodHandle * @requires vm.jvmti * @run main/othervm/native -agentlib:VMObjectAlloc VMObjectAllocTest */ import java.lang.invoke.MethodHandle; import java.lang.invoke.MethodHandles; import java.lang.invoke.MethodType; public class VMObjectAllocTest { private static native int getNumberOfAllocation(); public VMObjectAllocTest(String str) { } public static void main(String[] args) throws Throwable { MethodHandles.Lookup publicLookup = MethodHandles.publicLookup(); MethodType mt = MethodType.methodType(void.class, String.class); MethodHandle mh = publicLookup.findConstructor(VMObjectAllocTest.class, mt); mh.invoke("str"); if (getNumberOfAllocation() != 1) { throw new Exception("Number of allocation != 1"); } } }