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Java example source code file (Equals.java)
The Equals.java Java example source code/* * Copyright (c) 2003, 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 4913433 * @summary Generic framework to test Method.equals. * * @clean A * @compile Equals.java * @run main Equals */ import java.lang.reflect.*; class A { public Object m() { return this; } } public class Equals extends A { public Equals m() { return this; } public static void main(String [] args) { Equals e = new Equals(); e.returnType(); } private void returnType() { Class c = this.getClass(); Method [] ma = c.getMethods(); Method m0 = null, m1 = null; for (int i = 0; i < ma.length; i++) { if (ma[i].getName().equals("m")) { if (m0 == null) { m0 = ma[i]; continue; } else { m1 = ma[i]; break; } } } if (m0 == null || m1 == null) throw new RuntimeException("Can't find bridge methods"); if (m0.equals(m1)) throw new RuntimeException("Return types not compared"); System.out.println("\"" + m0 + "\" and \"" + m1 + "\" are different"); } } Other Java examples (source code examples)Here is a short list of links related to this Java Equals.java source code file: |
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