72 lines
3.1 KiB
Java
72 lines
3.1 KiB
Java
/*
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* Copyright (c) 2022, 2024, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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import java.lang.invoke.MethodHandle;
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import java.lang.invoke.MethodHandles;
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import java.lang.invoke.MethodType;
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/**
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* This is launched from TestLambdaInvokers.
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*/
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public class CDSLambdaInvoker {
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public static void main(String args[]) throws Throwable {
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// The following calls trigger the generation of new Species classes
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// that are not included in the base archive (or the default modules image).
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// - java.lang.invoke.BoundMethodHandle$Species_F
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// - java.lang.invoke.BoundMethodHandle$Species_FL
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// - java.lang.invoke.BoundMethodHandle$Species_J
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// - java.lang.invoke.BoundMethodHandle$Species_JL
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invoke(MethodHandles.identity(double.class), 1.0);
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invoke(MethodHandles.identity(long.class), 1);
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invoke(MethodHandles.identity(int.class), 1); // Note: Species_IL is in default modules image.
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invoke(MethodHandles.identity(float.class), 1.0f);
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MethodHandles.Lookup lookup = MethodHandles.lookup();
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MethodType mt = MethodType.methodType(void.class, float.class, double.class, int.class,
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boolean.class, Object.class, long.class, double.class);
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MethodHandle mh = lookup.findStatic(CDSLambdaInvoker.class, "callme", mt);
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mh.invokeExact(4.0f, 5.0, 6, true, (Object)args, 7L, 8.0);
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mh = MethodHandles.dropArguments(MethodHandles.zero(Object.class), 0, Object.class, int.class);
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MethodHandle inv = MethodHandles.invoker(mh.type());
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invoke(inv, mh, args, 3);
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}
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private static Object invoke(MethodHandle mh, Object ... args) throws Throwable {
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try {
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for (Object o : args) {
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mh = MethodHandles.insertArguments(mh, 0, o);
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}
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return mh.invoke();
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} catch (Throwable t) {
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System.out.println("Failed to find, link and/or invoke " + mh.toString() + ": " + t.getMessage());
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throw t;
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}
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}
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private static void callme(float f, double d, int i, boolean b, Object o, long l, double d2) {
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}
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}
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