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