/* * Copyright (c) 2020, 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.MethodHandles; import java.lang.invoke.MethodHandles.Lookup; import static java.lang.invoke.MethodHandles.Lookup.ClassOption.*; import jdk.test.lib.compiler.InMemoryJavaCompiler; import jdk.internal.misc.Unsafe; public class LambdaProxyCallerIsHiddenApp { static byte klassbuf[] = InMemoryJavaCompiler.compile("LambdaHello", "public class LambdaHello { " + " static Runnable run; " + " static { " + " run = LambdaHello::myrun; " + " } " + " static void myrun() { " + " System.out.println(\"Hello\"); " + " } " + "} "); public static void main(String args[]) throws Exception { Lookup lookup = MethodHandles.lookup(); System.out.println("lookup: " + lookup); Class hiddenClass = lookup.defineHiddenClass(klassbuf, true, NESTMATE, STRONG).lookupClass(); System.out.println("hiddenClass: " + hiddenClass); Object o = hiddenClass.newInstance(); System.out.println("o: " + o); } }