test/jdk/java/awt/AWTEventMulticaster/ArrayStoreException.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).
 *
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 * 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 4513402
  @summary AWTEventMulticaster.getListeners throws unexpected ArrayStoreException
*/

import java.awt.AWTEventMulticaster;
import java.awt.event.ComponentAdapter;
import java.awt.event.ComponentListener;
import java.awt.event.FocusListener;

public class ArrayStoreException {

    public static void main(String[] args) throws Exception {

        ComponentListener mc =
            AWTEventMulticaster.add(
                new ComponentAdapter() {},
                new ComponentAdapter() {});

        if (AWTEventMulticaster.getListeners(mc, FocusListener.class).length == 0) {
            System.out.println("OKAY");
        } else {
            System.out.println("empty array expected");
            throw new RuntimeException("Test failed");
        }
    }
}