test/jdk/java/net/URL/NonOverridableHandlerFactory.java - master - githubmirror/jdk21u

test/jdk/java/net/URL/NonOverridableHandlerFactory.java

64 строки2 KB

Sean Coffey

8217364: Custom URLStreamHandler for jrt or file protocol can override default handler

03 май 2019, 00:52

03 май 2019, 00:52a712b37

/*
 * Copyright (c) 2019, 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 8217364
 * @summary Custom URLStreamHandler for jrt or file protocol can override default handler
 * @modules java.base/java.net:open
 * @run main/othervm NonOverridableHandlerFactory
 */

import java.io.*;
import java.net.*;

public class NonOverridableHandlerFactory implements URLStreamHandlerFactory {
    @Override
    public URLStreamHandler createURLStreamHandler(String protocol) {
        return new NonOverridableHandler();
    }

    private static class NonOverridableHandler extends URLStreamHandler {
        @Override
        protected URLConnection openConnection(URL u) throws IOException {
            throw new RuntimeException("CustomURLStreamHandler used for " + u);
        }
    }

    public static void main(String[] args) {
        URL.setURLStreamHandlerFactory(new NonOverridableHandlerFactory());
        for (String protocol : new String[] {"file", "jrt"}) {
            String urlString = protocol + ":///test/somefile";
            try {
                new URL(urlString).openConnection();
            } catch(RuntimeException r) {
                throw r;
            } catch(Throwable t) {
                // possible jrt initialization issue on exploded binary image etc.
                System.out.println("encountered: " + t +
                    "(testing: " + urlString + ")");
            }
            System.out.println("Default URLStreamHandler used for " + urlString);
        }
    }
}