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/*
* 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.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import java.nio.charset.*;
import java.util.concurrent.Callable;
/*
* Testcase for verifying deserializeLambda containing a non-ASCII mappable char
* is correctly handled as UTF-8
*/
public class TestLambdaFileEncodingSerialization {
public static class ABCâ implements Serializable {
public String msg;
public ABCâ() {
msg = "Hello world";
}
public static Callable<ABCâ> getHello() {
return (Callable<ABCâ> & Serializable) () -> {
return new ABCâ();
};
}
}
// Re-serialize the object containing the lambda
private static <T> T reserialize(T o) throws IOException {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ObjectOutputStream oos = new ObjectOutputStream(baos);
oos.writeObject(o);
oos.close();
ObjectInputStream iis = new ObjectInputStream(new ByteArrayInputStream(baos.toByteArray()));
try {
o = (T)iis.readObject();
} catch (ClassNotFoundException e) {
throw new IOException(e);
}
iis.close();
return o;
}
public static void main(String args[]) throws Exception{
System.out.println("Default charset = "+Charset.defaultCharset());
// Construct class containing suitable UTF-8 char
Callable<ABCâ> foo = ABCâ.getHello();
ABCâ hello = new ABCâ();
// re-serialize hello
ABCâ rh = reserialize(hello);
System.out.println(rh.msg);
// re-serialize foo and call()
reserialize(foo).call();
}
}
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