BadSerializationTest.java

/*
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 * 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.
 *
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 */

/**
 * @test
 * @bug 8030050
 * @summary Validate fields on DnD class deserialization
 * @author petr.pchelko@oracle.com
 */

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InvalidObjectException;
import java.io.ObjectInputStream;
import java.util.stream.Stream;

public class BadSerializationTest {

    private static final String[] badSerialized = new String[] {
            "badAction",
            "noEvents",
            "nullComponent",
            "nullDragSource",
            "nullOrigin"
    };

    private static final String goodSerialized = "good";

    public static void main(String[] args) throws Exception {
        String testSrc = System.getProperty("test.src") + File.separator;
        testReadObject(testSrc + goodSerialized, false);
        Stream.of(badSerialized).forEach(file -> testReadObject(testSrc + file, true));
    }

    private static void testReadObject(String filename, boolean expectException) {
        Exception exceptionCaught = null;
        try (FileInputStream fileInputStream = new FileInputStream(filename);
             ObjectInputStream ois = new ObjectInputStream(fileInputStream)) {
            ois.readObject();
        } catch (InvalidObjectException e) {
            exceptionCaught = e;
        } catch (IOException e) {
            throw new RuntimeException("FAILED: IOException", e);
        } catch (ClassNotFoundException e) {
            throw new RuntimeException("FAILED: ClassNotFoundException", e);
        }
        if (exceptionCaught != null && !expectException) {
            throw new RuntimeException("FAILED: UnexpectedException", exceptionCaught);
        }
        if (exceptionCaught == null && expectException) {
            throw new RuntimeException("FAILED: Invalid object was created with no exception");
        }
    }
}