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Java example source code file (Chaining.java)

This example Java source code file (Chaining.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

activationexception, chaining, exception, illegalstateexception, remoteexception, rmi, runtimeexception, servercloneexception, string, throwable

The Chaining.java Java example source code

/*
 * Copyright (c) 2001, 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.
 */

/* @test
 * @bug 4416970
 * @summary test chained exception support
 * @run main/othervm Chaining
 */
import java.rmi.MarshalledObject;
import java.rmi.RemoteException;
import java.rmi.activation.ActivationException;
import java.rmi.server.ServerCloneException;

public class Chaining {
    static void check(Throwable t, String msg, Throwable cause)
        throws Exception
    {
        String tmsg = t.getMessage();
        if (msg == null ? tmsg != null : !msg.equals(tmsg)) {
            throw new RuntimeException("message does not match");
        }
        if (t.getClass().getField("detail").get(t) != cause) {
            throw new RuntimeException("detail field does not match");
        }
        if (t.getCause() != cause) {
            throw new RuntimeException("getCause value does not match");
        }
        try {
            t.initCause(cause);
            throw new RuntimeException("initCause succeeded");
        } catch (IllegalStateException e) {
        }
    }

    static void test(Throwable t, String msg, Throwable cause)
        throws Exception
    {
        check(t, msg, cause);
        Throwable[] pair = new Throwable[]{t, cause};
        pair = (Throwable[]) new MarshalledObject(pair).get();
        check(pair[0], msg, pair[1]);
    }

    public static void main(String[] args) throws Exception {
        Exception t = new RuntimeException();
        String foo = "foo";
        String fooMsg = "foo; nested exception is: \n\t" + t;
        test(new RemoteException(), null, null);
        test(new RemoteException(foo), foo, null);
        test(new RemoteException(foo, t), fooMsg, t);
        test(new ActivationException(), null, null);
        test(new ActivationException(foo), foo, null);
        test(new ActivationException(foo, t), fooMsg, t);
        test(new ServerCloneException(foo), foo, null);
        test(new ServerCloneException(foo, t), fooMsg, t);
    }
}

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