/* * Copyright (c) 2022, 2024, 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. * */ import java.lang.invoke.MethodHandle; import java.lang.invoke.MethodHandles; import java.lang.invoke.MethodType; /** * This is launched from TestLambdaInvokers. */ public class CDSLambdaInvoker { public static void main(String args[]) throws Throwable { // The following calls trigger the generation of new Species classes // that are not included in the base archive (or the default modules image). // - java.lang.invoke.BoundMethodHandle$Species_F // - java.lang.invoke.BoundMethodHandle$Species_FL // - java.lang.invoke.BoundMethodHandle$Species_J // - java.lang.invoke.BoundMethodHandle$Species_JL invoke(MethodHandles.identity(double.class), 1.0); invoke(MethodHandles.identity(long.class), 1); invoke(MethodHandles.identity(int.class), 1); // Note: Species_IL is in default modules image. invoke(MethodHandles.identity(float.class), 1.0f); MethodHandles.Lookup lookup = MethodHandles.lookup(); MethodType mt = MethodType.methodType(void.class, float.class, double.class, int.class, boolean.class, Object.class, long.class, double.class); MethodHandle mh = lookup.findStatic(CDSLambdaInvoker.class, "callme", mt); mh.invokeExact(4.0f, 5.0, 6, true, (Object)args, 7L, 8.0); mh = MethodHandles.dropArguments(MethodHandles.zero(Object.class), 0, Object.class, int.class); MethodHandle inv = MethodHandles.invoker(mh.type()); invoke(inv, mh, args, 3); } private static Object invoke(MethodHandle mh, Object ... args) throws Throwable { try { for (Object o : args) { mh = MethodHandles.insertArguments(mh, 0, o); } return mh.invoke(); } catch (Throwable t) { System.out.println("Failed to find, link and/or invoke " + mh.toString() + ": " + t.getMessage()); throw t; } } private static void callme(float f, double d, int i, boolean b, Object o, long l, double d2) { } }