LegacyChainedExceptionSerialization.java

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import java.io.*;

/**
 * @test
 * @bug     4385429 8004928
 * @summary Certain legacy chained exceptions throw IllegalArgumentException
 *          upon deserialization if "causative exception" is null.
 * @author  Josh Bloch
 */
public class LegacyChainedExceptionSerialization {
    private static Throwable[] broken = {
        new ClassNotFoundException(),
        new ExceptionInInitializerError(),
        new java.lang.reflect.UndeclaredThrowableException(null),
        new java.lang.reflect.InvocationTargetException(null),
        new java.security.PrivilegedActionException(null)
    };

    public static void main(String[] args) throws Exception {
        for (int i=0; i<broken.length; i++)
            test(broken[i]);
    }

    private static void test(Throwable e) throws Exception {
        ByteArrayOutputStream bout = new ByteArrayOutputStream();
        ObjectOutputStream out = new ObjectOutputStream(bout);
        out.writeObject(e);
        out.flush();

        ByteArrayInputStream bin =
            new ByteArrayInputStream(bout.toByteArray());
        ObjectInputStream in = new ObjectInputStream(bin);
        Throwable clone = (Throwable) in.readObject();
    }
}