Java example source code file (Test4144543.java)

This example Java source code file (Test4144543.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

bean, class, exception, javabean, propertydescriptor, test4144543

The Test4144543.java Java example source code

/*
 * Copyright (c) 1999, 2007, 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 4144543
 * @summary Tests that introspection handles multiple setters in any order
 * @author Janet Koenig
 */

import java.beans.Beans;
import java.beans.Introspector;
import java.beans.PropertyDescriptor;

public class Test4144543 {
    public static void main(String[] args) throws Exception {
        Class type = Beans.instantiate(null, "Test4144543").getClass();

        // try all the various places that this would break before

        Introspector.getBeanInfo(type);
        new PropertyDescriptor("value", type);
        new PropertyDescriptor("value", type, "getValue", "setValue");
    }

    private int value;

    public int getValue() {
        return this.value;
    }

    /*
     * The Introspector expects the return type of the getter method to
     * match the parameter type of the setter method.  So list the setter
     * method which has a different type (but compatible) first so that
     * the Introspector will find it first and recognize that it is not
     * the correct setter method.
     */

    public void setValue(byte value) {
        this.value = value;
    }

    public void setValue(int value) {
        this.value = value;
    }
}