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63 lines
2.3 KiB
Java
63 lines
2.3 KiB
Java
/*
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* Copyright (c) 2024, Alphabet LLC. 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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@test
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@bug 8208752
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@summary NPE generating serializedLambdaName for nested lambda
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*/
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import java.io.ByteArrayInputStream;
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import java.io.ByteArrayOutputStream;
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import java.io.ObjectInputStream;
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import java.io.ObjectOutputStream;
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import java.io.Serializable;
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import java.util.function.Function;
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public class LambdaSerializedClassCastException {
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public static void main(String[] args) throws Exception {
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Function<String, String> lambda1 =
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(Function<String, String> & Serializable) Object::toString;
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Function<Object, String> lambda2 =
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(Function<Object, String> & Serializable) Object::toString;
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Function<Object, String> deserial = serialDeserial(lambda2);
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deserial.apply(new Object());
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}
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@SuppressWarnings("unchecked")
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static <T> T serialDeserial(T object) throws Exception {
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ByteArrayOutputStream baos = new ByteArrayOutputStream();
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ObjectOutputStream oos = new ObjectOutputStream(baos);
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oos.writeObject(object);
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oos.close();
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ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
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ObjectInputStream ois = new ObjectInputStream(bais);
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T result = (T) ois.readObject();
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ois.close();
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return result;
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}
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}
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