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Java example source code file (DisableHttpDefaultValue.java)

This example Java source code file (DisableHttpDefaultValue.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

assertionerror, disablehttpdefaultvalue, exception, rmimastersocketfactory, socketfactory, string

The DisableHttpDefaultValue.java Java example source code

/*
 * Copyright (c) 2013, 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 8023862
 * @summary Verify that the default value of the java.rmi.server.disableHttp
 *          has been changed from false to true.
 * @compile -XDignore.symbol.file DisableHttpDefaultValue.java
 *
 * @run main/othervm                                     DisableHttpDefaultValue true
 * @run main/othervm -Djava.rmi.server.disableHttp       DisableHttpDefaultValue false
 * @run main/othervm -Djava.rmi.server.disableHttp=false DisableHttpDefaultValue false
 * @run main/othervm -Djava.rmi.server.disableHttp=xyzzy DisableHttpDefaultValue false
 * @run main/othervm -Djava.rmi.server.disableHttp=true  DisableHttpDefaultValue true
 */

import sun.rmi.transport.proxy.RMIMasterSocketFactory;

public class DisableHttpDefaultValue {
    /**
     * Subclass RMIMasterSocketFactory to get access to
     * protected field altFactoryList. This list has a
     * zero size if proxying is disabled.
     */
    static class SocketFactory extends RMIMasterSocketFactory {
        boolean proxyDisabled() {
            return altFactoryList.size() == 0;
        }
    }

    /**
     * Takes a single arg, which is the expected boolean value of
     * java.rmi.server.disableHttp.
     */
    public static void main(String[] args) throws Exception {
        // Force there to be a proxy host, so that we are able to
        // tell whether proxying is enabled or disabled.
        System.setProperty("http.proxyHost", "proxy.example.com");

        String propval = System.getProperty("java.rmi.server.disableHttp");
        String propdisp = (propval == null) ? "null" : ("\"" + propval + "\"");
        boolean expected = Boolean.parseBoolean(args[0]);
        boolean actual = new SocketFactory().proxyDisabled();
        System.out.printf("### prop=%s exp=%s act=%s%n", propdisp, expected, actual);
        if (expected != actual)
            throw new AssertionError();
    }
}

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