test/java/lang/AssertionError/Cause.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 4513384
 * @summary Object Constructor now sets cause if Object is an instance of Throwable.
 * @author Josh Bloch
 */

public class Cause {
    public static void main(String[] args) throws Exception {
        Exception e = new Exception();
        AssertionError ae = new AssertionError(e);
        if (ae.getCause() != e)
            throw new Exception("Cause not set.");
        ae = new AssertionError("gosh it's late");
        if (ae.getCause() != null)
            throw new Exception("Cause set erroneously: " + ae.getCause());
    }
}