test/java/lang/ClassLoader/LoadNullClass.java

/*
 * Copyright (c) 1999, 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 4263588 4292814
 * @summary ClassLoader.loadClass() should not core dump
 *          on null class names.
 */

import java.io.File;
import java.net.URL;
import java.net.URLClassLoader;


public class LoadNullClass {
    public static void main(String[] args) throws Exception {
        File f = new File(System.getProperty("test.src", "."));
        // give the class loader a good but useless url
        FileClassLoader cl = new FileClassLoader
            (new URL[]{new URL("file:"+ f.getAbsolutePath())});
        cl.testFindLoadedClass(null);
    }
}

class FileClassLoader extends URLClassLoader {

    public FileClassLoader(URL[] urls) {
        super(urls);
    }

    public void testFindLoadedClass(String name) throws Exception {
        super.findLoadedClass(name);
    }
}